СПОСОБ ПОЛУЧЕНИЯ ОКСИДНОГО КАТАЛИЗАТОРА И СПОСОБ ПОЛУЧЕНИЯ НЕНАСЫЩЕННОГО НИТРИЛА

FIELD: chemistry. SUBSTANCE: disclosed is a method of producing an oxide catalyst for gas-phase contact ammoxidation containing Mo, V, Sb and Nb and having a compound represented by following formula (1): MoV a Sb b Nb c Z d O n , in which Z denotes at least one element selected from a group consisting of W, La, Ce, Yb and Y; values of a, b, c, and d lie in intervals of 0.01 ≤ a ≤ 0.35, 0.01 ≤ b ≤ 0.35, 0.01 ≤ c ≤0.20, and 0.00 ≤ d ≤ 0.10, respectively; and n is a number which satisfies the balance of atomic valences, the method comprising: a step of preparing the raw material, on which a liquid aqueous mixture containing Mo, V, Sb and Nb is obtained; - aging stage, at which liquid aqueous mixture is exposed to standing or mixing for a period of time greater than or equal to 5 minutes and less than or equal to 50 hours, wherein each of said actions is carried out at temperature higher than 30 °C; drying step whereon the liquid aqueous mixture is dried to obtain dry powder; and a burning step, on which dry powder is burnt, thereby obtaining an oxide catalyst, wherein at the step of preparing the material and/or the aging step, Nb deposition is facilitated by carrying out at least one operation selected from the group consisting of the following operations (I) and (III): (I) at the stage of raw material preparation, a liquid aqueous mixture is prepared by mixing a first liquid feed material containing Nb and water with a second liquid starting material containing Mo, V and Sb and water, wherein at least one material from said first liquid starting material, said second liquid starting material and liquid aqueous mixture is added with ammonia in an amount to set molar ratio NH 3 /Nb in liquid aqueous mixture greater than or equal to 0.7, and at aging stage temperature of liquid aqueous mixture is set higher than 50 °C; (III) at the stage of preparing the raw material, the liquid aqueous mixture is prepared by mixing said first liquid starting material with said second ...

AGGLOMERATED ODH CATALYST

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, preferably extruded with supports consisting of slurries of Nb2O5.

OXIDATIVE DEHYDROGENATION OF (ODG) ETHANE

Nickel titanium niobium triple metal oxide visible photocatalyst and manufacturing method thereof

나이오븀(Nb)이 도핑된 니켈 티타네이트(NiTiO 3 )를 포함하는 광촉매로, 상기 나이오븀이 도핑된 니켈 티타네이트에서 나이오븀의 함량은 니켈 티타네이트 100 중량부 기준으로 0.1 중량부 내지 20 중량부인 것을 특징으로 하는 광촉매가 개시된다. A photocatalyst containing niobium (Nb) doped nickel titanate (NiTiO 3 ), and the content of niobium in the niobium-doped nickel titanate is 0.1 parts by weight to 20 parts by weight based on 100 parts by weight of nickel titanate A photocatalyst characterized by denial is disclosed.

Tratamiento hidrotérmico bajo presión controlada de catalizador de deshidrogenación oxidativa.

PREPARACIÓN DE UN CATALIZADOR DE DESHIDROGENACIÓN OXIDATIVA QUE COMPRENDE MO, V, NB Y TE USANDO UNA ETAPA HIDROTÉRMICA. LA ACTIVIDAD Y LA CAPACIDAD DE REPRODUCCIÓN DEL CATALIZADOR SON MEJORADAS AL LLEVAR A CABO UNA ETAPA HIDROTÉRMICA A PRESIONES MÁS ALTAS MIENTRAS SE PERMITE QUE LOS PRODUCTOS GASEOSOS SALGAN DEL REACTOR. EN ALGUNOS CASOS, UN CONDENSADOR PUEDE ESTAR CORRIENTE ARRIBA DE LA VÁLVULA DE ALIVIO DE PRESIÓN.

СМЕШАННЫЙ КАТАЛИЗАТОР

FIELD: chemistry. SUBSTANCE: invention relates to a mixed catalyst for catalytic vapour-phase oxidation or catalytic vapour-phase ammoxidation of propane or isobutane. The disclosed mixed catalyst contains: (a) a composite oxide of formula Mo 1 V a Nb b Sb c W d Z e O n (1), where Z is at least one element selected from a group consisting of La, Ce, Pr, Yb, Y, Sc, Sr and Ba; each of the indices a, b, c, d, e and n is the atomic fraction of each element with respect to an atom of Mo; a is in the range 0.01≤a≤1; b is in the range 0.01≤b≤1; c is in the range 0.01≤c≤1; d is in the range 0.001≤d≤1; e is in the range 0≤e≤1; and n is a number defined by the valence of metal components; and (b) a tungsten compound in a ratio which satisfies the condition 0.001<w<0,3 (2), where w is the atomic fraction of tungsten in the tungsten compound as an atomic fraction with respect to the atom of Mo in the composite oxide. Elementary tungsten from said tungsten compound (b) diffuses onto the surface of the composite oxide (a) and is fixed on said surface of the composite oxide (a) during catalytic vapour-phase oxidation of propane or isobutane with oxygen or during catalytic vapour-phase ammoxidation of propane or isobutane with oxygen and ammonia. The invention also relates to a method of producing an unsaturated acid or unsaturated nitrile using said mixed catalyst. EFFECT: disclosed mixed catalyst has high heat resistance and redox resistance. 5 cl, 12 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 559 337 C2 (51) МПК B01J 23/30 (2006.01) C07C 57/05 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012146975/04, 23.03.2011 (24) Дата начала отсчета срока действия патента: 23.03.2011 (72) Автор(ы): КАТО Такааки (JP), КАДОВАКИ Минору (JP) 13.05.2010 JP 2010-111444; 13.05.2010 JP 2010-111422 R U (73) Патентообладатель(и): АСАХИ КАСЕИ КЕМИКАЛЗ КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата ...

СПОСОБ ПОЛУЧЕНИЯ ОКСИДНОГО КАТАЛИЗАТОРА И СПОСОБ ПОЛУЧЕНИЯ НЕНАСЫЩЕННОГО НИТРИЛА

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing an oxide catalyst and a method of producing an unsaturated nitrile. Method of producing oxide catalyst for gas-phase catalytic ammoxidation of propane or isobutane and containing Mo, V, Sb, Nb and silica, includes a step of preparing the starting material, comprising a sub-stage (I) for preparing an aqueous liquid mixture (A) containing Mo, V and Sb; substage (II) for adding hydrogen peroxide to an aqueous liquid mixture (A), thereby promoting oxidation of the aqueous liquid mixture (A) and obtaining an aqueous liquid mixture (A'); and substage (III) mixing aqueous liquid mixture (A'), Nb-containing initial liquid material (B) and initial carrier material containing silica, and thereby obtaining aqueous liquid mixture (C); a step for drying an aqueous liquid mixture (C) and thereby obtaining a dry powder and a step for calcining dry powder in an atmosphere of an inert gas, where time elapsed from adding hydrogen peroxide to the aqueous liquid mixture (A) until mixing with it of an Nb-containing starting liquid material (B) is less than 5 minutes, and aqueous liquid mixture (A') before exposure of substage (III) has oxidation-reduction potential of 150–350 mV. Method of producing acrylonitrile involves a step for producing an oxide catalyst using the above described method of producing an oxide catalyst and a step for producing acrylonitrile, wherein a gas-phase catalytic ammoxidation reaction of propane or isobutane is carried out in the presence of the obtained oxide catalyst to thereby obtain acrylonitrile in accordance therewith. EFFECT: providing a method by which an oxide catalyst which provides high output of an unsaturated nitrile can be obtained without the need to introduce complex steps and modifying agents. 5 cl, 16 ex, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) (19) RU (11) (13) 2 702 126 C1 (51) МПК B01J 37/04 (2006.01) B01J 37/ ...

OXIDATIVE DEHYDROGENATION CATALYST COMPOSITIONS

Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20Al c O d wherein c is from 0 to 2.0 and d is a number to satisfy the valence of the oxide. The compositions are at least 40 wt.% amorphous as measured by XRD. The disclosure also provides methods of making the compositions.

AGGLOMERATED ODH CATALYST

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, preferably extruded with supports selected from the group consisting of slurries of TiO2, ZrO2 Al2O3, AlO(OH) and mixtures thereof have a lower temperature at which 25% conversion is obtained.

OXIDATIVE DEHYDROGENATION OF (ODG) ETHANE

tratamento hidrotérmico com pressão controlada de catalisador odh

Method for producing oxide catalyst and method for producing unsaturated nitrile capable of producing catalysts used in ammonia oxidation reaction under specific conditions

The method for producing an oxide catalyst of the present invention is a method for producing an oxide catalyst containing Mo, V, Sb, and Nb, and includes: a raw material preparation step for obtaining aqueous mixture solution containing Mo, V, Sb, and Nb; a ripening step for ripening the aqueous mixture solution at a temperature exceeding 30 DEG C; a drying step for drying the aqueous mixture to obtain a dry powder; and a baking step for baking the dry powder to obtain the oxide catalyst. Further, in the raw material preparation step and/or the ripening step, at least one operation selected from the group consisting of the following (I) to (III) is performed to facilitate the precipitation of Nb. (I) In the above raw material preparation step, the aqueous mixture solution is prepared by mixing a Nb raw material solution containing Nb with a MoVSb raw material solution containing Mo, V, and Sb, in here, ammonia is added to at least one of the MoVSb raw material solution, the Nb raw material ...

СМЕШАННЫЙ КАТАЛИЗАТОР

1. Смешанный катализатор для реакции каталитического окисления в паровой фазе или реакции каталитического аммоксидирования в паровой фазе пропана или изобутана,где данный смешанный катализатор содержит:(a) сложный оксид, состав которого представлен приведенной ниже формулой (1):MoVNbSbWZO(1),где Z представляет собой по меньшей мере один элемент, выбранный из группы, состоящей из La, Ce, Pr, Yb, Y, Sc, Sr и Ba; каждый индекс из a, b, c, d, e и n представляет собой атомную долю каждого элемента в расчете на атом Mo; a находится в интервале 0,01≤a≤1; b находится в интервале 0,01≤b≤1; c находится в интервале 0,01≤c≤1; d находится в интервале 0,001≤d≤1; e находится в интервале 0≤e≤1; и n представляет собой число, определяемое валентностью металлических компонентов; и(b) соединение вольфрама при соотношении, соответствующем указанной ниже формуле (2):0,001<w<0,3 (2),где w представляет собой атомную долю вольфрама в соединении вольфрама как атомную долю в расчете на атом Mo в сложном оксиде.2. Смешанный катализатор по п.1, в котором соединение вольфрама содержит оксид вольфрама.3. Смешанный катализатор по п.1 или 2, где данный смешанный катализатор используется для реакции в псевдоожиженном слое.4. Способ получения ненасыщенной кислоты или ненасыщенного нитрила, включающий стадию приведения пропана или изобутана и кислорода в контакт со смешанным катализатором по п.1 или 2, или приведения пропана или изобутана, а также кислорода и аммиака в соприкосновение со смешанным катализатором по п.1 или 2.5. Способ по п.4, в котором температура для стадии приведения в контакт устанавливается при 400°C или более. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2012 146 975 A (51) МПК B01J 23/30 (2006.01) C07C 57/05 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012146975/04, 23.03.2011 (71) Заявитель(и): АСАХИ КАСЕИ КЕМИКАЛЗ КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: 13.05.2010 JP 2010-111444; 13.05.2010 JP ...

СПОСОБ ПОЛУЧЕНИЯ НЕНАСЫЩЕННОГО НИТРИЛА

FIELD: chemical or physical processes. SUBSTANCE: invention relates to a method of producing an unsaturated nitrile, comprising a reaction step of subjecting a hydrocarbon to catalytic ammoxidation reaction in a vapor phase in the presence of a catalyst in the interior, in order to obtain the corresponding unsaturated nitrile, where when the inner space is divided into two spaces in the form of an upper space, occupying space from cyclone inlet top end to inner space upper end, and bottom space, occupying space below cyclone inlet top end and extending to distribution plate, ratio of available amount of catalyst in upper space per unit volume to available amount of catalyst in lower space per unit volume ranges from 0.05 to 0.45 at reaction stage, wherein catalyst has composition represented by formula below (1): MoV a Nb b X c T d Z e O n (1), where each of the indices a, b, c, d, e and n is atomic fraction of each atom with respect to the Mo atom, and they are within intervals 0.01≤a≤1; 0.01≤b≤1; 0.01≤c≤1; 0≤d<1 and 0≤e<1; and n is a value which satisfies a valence balance, wherein X is Sb, T is W, and Z is Ce. EFFECT: technical result is improved output of unsaturated nitrile. 6 cl, 2 dwg, 1 tbl, 20 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 738 110 C1 (51) МПК C07C 253/24 (2006.01) B01J 23/30 (2006.01) C07B 61/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 253/24 (2020.02); B01J 23/30 (2020.02); C07B 61/00 (2020.02) (21)(22) Заявка: 2019102814, 21.05.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): АСАХИ КАСЕИ КАБУСИКИ КАЙСЯ (JP) Дата регистрации: 08.12.2020 (56) Список документов, цитированных в отчете о поиске: US 4246191 A1, 20.01.1981. JP 2002193906 A, 10.07.2002. WO 2016147950 A1, 22.09.2016. JP 2000258 A, 05.01.1990. RU 2108323 C1, 10.04.1998. RU 2551855 C2, 27.05.2015. 03.07.2017 JP 2017-130390 (45) Опубликовано: 08.12.2020 Бюл. № 34 (85) Дата ...

Oxidative dehydrogenation (ODH) of ethane

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor, allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; supplying a coolant to an upstream region of an interior shell space of the reactor in a flow pattern that is counter-current with the flow of the feed gas; and withdrawing the coolant from the upstream region and supplying at least a portion of the coolant withdrawn from the upstream region to the downstream region in a flow pattern that is co-current with the flow of the feed gas.

SCR CATALYST

The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of niobium, and an exhaust system containing said oxides.

AGGLOMERATED ODH CATALYST

Preparation of catalyst

An object of the present invention is to provide a catalyst that is highly active and has a large mechanical strength. The catalyst of the present invention contains molybdenum, vanadium, copper and antimony as the essential components, being produced by using antimony acetate for an antimony source material and preferably used for producing acrylic acid by vapor-phase catalytic oxidation of acrolein.

Catalyst and use of same

A catalyst comprising: a titanium oxide having an anatase-type crystal structure, and having the vertices and the ridge lines, wherein in a single titanium oxide particle, a vertex density per unit surface area is 8.0×10−4 nm−2 or more, and a ridge line density per unit surface area is 5.0×10−2 nm or more, or a ridge line density per unit volume is 8.0×10−3 nm−2 or more. A complex comprising: a material having a porous structure; and said catalyst. A membrane electrode assembly comprising: an anode; cathode; and an electrolyte membrane, wherein the cathode carries said catalyst on at least a surface of the cathode.

OXIDATIVE DEHYDROGENATION CATALYST

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining.

СПОСОБ ПОЛУЧЕНИЯ ОКСИДНОГО КАТАЛИЗАТОРА И СПОСОБ ПОЛУЧЕНИЯ НЕНАСЫЩЕННОГО НИТРИЛА И НЕНАСЫЩЕННОЙ КИСЛОТЫ

FIELD: chemistry. SUBSTANCE: disclosed is a method of producing an oxide catalyst containing antimony, comprising step (1) dissolving or dispersing a starting material containing an antimony source in a liquid consisting of water and/or a solvent, to produce initial liquid composition using antimony particles containing antimony (III) oxide as said antimony source; step (2) drying said initial liquid material obtained at step (1) to obtain a dried material; stage (3) of roasting said dried material obtained at step (2) to obtain calcined material, where the relative content of pentavalent antimony in the surface layer in the range of up to 2 nm from the surface of antimony particles, measured by X-ray photoelectron spectroscopy (XPS) analysis, is less than 70 at. %, and antimony particles have average particle size of 1.2 mcm or less. Also disclosed is a method of producing an unsaturated nitrile, comprising a step for producing an oxide catalyst which has been obtained using the method described above, and a production step, on which propane or isobutane and NH 3 is subjected to gas-phase catalytic ammoxidation reaction in the presence of obtained oxide catalyst to obtain unsaturated nitrile. Also disclosed is a method of producing an unsaturated acid, comprising a step for producing an oxide catalyst which has been obtained using the method described above, and a production step, at which propane or isobutane is subjected to gas-phase catalytic oxidation reaction in the presence of obtained oxide catalyst to obtain unsaturated acid. Invention discloses use of antimony particles containing antimony (III) oxide as an antimony source in an oxide catalyst to obtain an antimony-containing oxide catalyst, wherein the content of pentavalent antimony in the surface layer in the range of up to 2 nm from the surface of antimony particles, measured by X-ray photoelectron spectroscopy (XPS) analysis, is less than 70 at. %, and said antimony particles have an average particle ...

OXIDATIVE DEHYDROGENATION (ODH) OF ETHANE

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor and allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; and supplying a coolant to an interior shell space of the multitubular fixed- bed reactor in a flow pattern that is co-current with the flow of the feed gas through reactor.

Dehydrogenation catalyst

The present invention relates to a dehydrogenation catalyst, in which a platinum group metal, auxiliary metal, alkali metal or alkali earth metal component is supported on a support, wherein a molar ratio of platinum with respect to the auxiliary metal is 0.5 to 1.49 and, when titrated with KOH, the catalyst has an acid site content of a catalyst of 20 to 150 μmol KOH/g. The dehydrogenation catalyst according to the present invention prevents a phenomenon of a rapid increase of coke in the case of a decline in a hydrogen ratio in a dehydrogenation reaction. Therefore, it is possible to enhance the output of a process to enable operation thereof under a condition of decline in a hydrogen/hydrocarbon ratio, thereby being able to enhance process economics.

Activated mixed metal oxide oxidation catalysts

A method for producing a catalyst by contacting a mixed metal oxide catalyst with water, and optionally, an aqueous metal oxide precursor to produce a modified mixed metal oxide, and calcining the modified mixed metal oxide.

IMPROVED OXIDATIVE DEHYDROGENATION CATALYST

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30 - 2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining.

Activated mixed metal oxide oxidation catalysts

The present invention provides a mixed metal oxide catalyst, also provides a method for producing a catalyst by contacting a mixed metal oxide catalyst with water; and optionally, an aqueous metal oxide precursor to produce a modified mixed metal oxide, and calcining the modified mixed metal oxide.

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

The present invention provides a Mo-Bi-Nb based composite metal oxide (with the proviso that Te is not included); a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo-Bi-Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst; and a reactor used for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo-Bi-Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst. Further, the present invention provides a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether by using a Mo-Bi-Nb based composite metal oxide as a catalyst, without ...

산화물 촉매의 제조 방법, 및 불포화 니트릴의 제조 방법

... 본 발명은 Mo, V, Sb, 및 Nb를 포함하는 산화물 촉매의 제조 방법으로서, Mo, V, Sb, 및 Nb를 포함하는 수성 혼합액을 얻는 원료 조합 공정과, 상기 수성 혼합액을 30℃ 초과에서 숙성하는 숙성 공정과, 상기 수성 혼합액을 건조하여, 건조 분체를 얻는 건조 공정과, 상기 건조 분체를 소성하여, 상기 산화물 촉매를 얻는 소성 공정을 갖고, 상기 원료 조합 공정 및/또는 숙성 공정에 있어서, (Ⅰ)∼(Ⅲ)으로 이루어지는 군에서 선택되는 적어도 하나의 조작을 행함으로써, Nb의 석출을 촉진한다. 본 발명에 의하면, 불포화 니트릴 수율이 높은 산화물 촉매를 얻을 수 있고, 또한, 복잡한 공정의 도입 및 설비의 변경을 필요로 하지 않고 상기 산화물 촉매를 비교적 단시간에 제조할 수 있다.

PROCESS OF ALKANE OXIDATIVE DEHYDROGENATION AND/OR ALKENE OXIDATION

The invention relates to a process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms, wherein oxygen, water and the alkane and/or alkene are fed to a reactor and are contacted with a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium in the reactor, and wherein the molar ratio of water as fed to the reactor to oxygen as fed to the reactor is smaller than 1:1.

MIXED CATALYST

본 발명의 목적은 프로판 또는 이소부탄의 기상 접촉 산화 또는 기상 접촉 암모산화 반응용의 촉매로서, 프로판 또는 이소부탄으로부터 대응하는 불포화 산 또는 불포화 니트릴을 고수율로 얻을 수 있는 혼합물 촉매를 제공하는 것이다. 본 발명은 프로판 또는 이소부탄의 기상 접촉 산화 반응 또는 기상 접촉 암모산화 반응용의 혼합물 촉매로서, 하기 조성식 (1)로 표시되는 복합 산화물과 텅스텐 화합물을, 하기 식 (2)의 비율로 함유한 혼합물 촉매에 관한 것이다; Mo 1 V a Nb b Sb c W d Z e O n (1) [식 (1) 중, Z는 La, Ce, Pr, Yb, Y, Sc, Sr, Ba로 이루어지는 군에서 선택되는 적어도 1종 이상의 원소, a, b, c, d, e, n은 Mo 1 원자당 각 원소의 원자비를 나타내고, a는 0.01≤a≤1, b는 0.01≤b≤1, c는 0.01≤c≤1, d는 0.001≤d≤1, e는 0≤e≤1이고, n은 구성 금속의 원자가에 의해 결정되는 수를 나타낸다.] 0.001<w<0.3 (2) [식 (2) 중, w는 텅스텐 화합물 중의 텅스텐의 원자비를, 복합 산화물 중의 Mo 1 원자당 원자비로서 나타낸 것이다.]. An object of the present invention is to provide a mixture catalyst capable of obtaining a corresponding unsaturated acid or unsaturated nitrile from propane or isobutane in a high yield, as a catalyst for gas phase catalytic oxidation or gas phase catalytic ammoxidation reaction of propane or isobutane. The present invention relates to a mixture catalyst for a gas phase catalytic oxidation reaction or a gas phase catalytic catalytic oxidation reaction of propane or isobutane, which comprises mixing a composite oxide represented by the following structural formula (1) and a tungsten compound at a ratio of the following formula (2) Catalysts; Mo 1 V a Nb b Sb c W d Z e O n (1) B, c, d, e, and n are at least one element selected from the group consisting of La, Ce, Pr, Yb, Y, Sc, A represents 0.01? A? 1, b represents 0.01? B? 1, c represents 0.01? C? 1, d represents 0.001? D? 1, e represents 0? E? 1 , and n represents a number determined by the valency of the constituent metal.] 0.001 < w < 0.3 (2) [In the formula (2), w represents the atomic ratio of tungsten in the tungsten compound as an atomic ratio per Mo atom in the complex oxide.

OXIDATIVE DEHYDROGENATION (ODH) OF ETHANE

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor, allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; supplying a coolant to an upstream region of an interior shell space of the reactor in a flow pattern that is counter-current with the flow of the feed gas; and withdrawing the coolant from the upstream region and supplying at least a portion of the coolant withdrawn from the upstream region to the downstream region in a flow pattern that is co-current with the flow of the feed gas.

CONTROLLED PRESSURE HYDROTHERMAL TREATMENT OF ODH CATALYST

The preparation of an oxidative dehydrogenation catalyst comprising Mo, V, Nb and Te using a hydrothermal step the activity and reproducibility of the catalyst is improved by conduction the hydrothermal step at higher pressures while permitting gaseous products to leave the reactor. In some instances a condenser may be upstream of the pressure relief valve.

Nickel titanium niobium triple metal oxide visible photocatalyst and manufacturing method thereof

Oxidative dehydrogenation (ODH) of ethane

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor and allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; and supplying a coolant to an interior shell space of the multitubular fixed- bed reactor in a flow pattern that is co-current with the flow of the feed gas through reactor.

Controlled pressure hydrothermal treatment of odh catalyst

The preparation of an oxidative dehydrogenation catalyst comprising Mo, V, Nb and Te using a hydrothermal step the activity and reproducibility of the catalyst is improved by conduction the hydrothermal step at higher pressures while permitting gaseous products to leave the reactor. In some instances a condenser may be upstream of the pressure relief valve.

SCR CATALYST

The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of antimony, and an exhaust system containing said oxides.

CALCINATION PROCESS TO PRODUCE ENHANCED ODH CATLYST

Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600 °C in an inert container comprising heating the catalyst precursor at a rate from 0.5 to 10°C per minute from room temperature to a temperature from 370 °C to 540°C under a stream of pre heated gas selected from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300 °C to 540 °C and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.

PROCESS OF ALKANE OXIDATIVE DEHYDROGENATION AND/OR ALKENE OXIDATION

The invention relates to a process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms, wherein oxygen, water and the alkane and/or alkene are fed to a reactor and are contacted with a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium in the reactor, and wherein the molar ratio of water as fed to the reactor to oxygen as fed to the reactor is smaller than 1:1.

SCR Catalyst

The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of antimony, and an exhaust system containing said oxides.

Agglomerated ODH catalyst

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, preferably extruded with supports consisting of slurries of Nb ...

OXIDATIVE DEHYDROGENATION (ODH) OF ETHANE

DEHYDROGENATION CATALYST

The present invention relates to a dehydrogenation catalyst in which a platinum-group metal, an assistant metal, and an alkali metal or alkaline earth metal component are supported on a carrier, wherein the molar ratio of platinum to the assistant metal is 0.5 to 1.49, and the catalyst has an acidity amount of 20 to 150 μmol KOH/g catalyst when it is titrated with KOH. The dehydrogenation catalyst according to the present invention may prevent coke formation from increasing rapidly when the hydrogen/hydrocarbon ratio in a dehydrogenation reaction is reduced, thereby increasing the productivity of the process. Accordingly, it makes it possible to operate the process under a condition in which the hydrogen/hydrocarbon ratio in a dehydrogenation reaction is reduced, thereby improving the economy of the process. 1. A dehydrogenation catalyst in which a platinum-group metal , an assistant metal , and an alkali metal or alkaline earth metal component are supported on a carrier , wherein a molar ratio of platinum to the assistant metal is 0.5 to 1.49 , and the catalyst has an acidity amount of 20 to 150 mol KOH/g catalyst when it is titrated with KOH.2. The dehydrogenation catalyst of claim 1 , wherein the catalyst comprises claim 1 , based on the total weight of the catalyst claim 1 , 0.3 to 0.8 wt % of platinum and 0.4 to 0.9 wt % of the alkali metal or alkaline earth metal.3. The dehydrogenation catalyst of claim 1 , wherein the catalyst has a bulk density of 0.55 to 0.9 g/cc.4. The dehydrogenation catalyst of claim 1 , wherein the catalyst has a pill size of 1.2 to 2.5 mm.5. The dehydrogenation catalyst of claim 1 , wherein the carrier comprises both mesopores having an average pore size of 5 to 100 nm and a total pore volume of 0.05 to 2 cm/g and macropores having an average pore size of 0.1 to 20 μm and a total pore volume of 0.05 to 3 cm/g.6. The dehydrogenation catalyst of claim 1 , wherein the alkali metal or alkaline earth metal is one or more selected from the ...

Oxidative dehydrogenation (ODH) of ethane

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor and allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; and supplying a coolant to an interior shell space of the multitubular fixed- bed reactor in a flow pattern that is co-current with the flow of the feed gas through reactor.

The dehydrogenation catalyst

AGGLOMERATED ODH CATALYST

Catalizador de odh aglomerado.

Catalizadores de deshidrogenación oxidativa para convertir parafinas inferiores en alquenos, tales como el etano al etileno, cuando se preparan como una aglomeración, preferentemente extruidas con soportes que consisten en suspensiones acuosas de Nb2O5.

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

The present invention provides a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included); a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst; and a reactor used for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo—Bi—Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst. Further, the present invention provides a method for producing the (meth)acrylic acid without any additional process of converting (meth)acrolein into (meth)acrylic acid.

Oxidative dehydrogenation (ODH) of ethane

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor, allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; supplying a coolant to an upstream region of an interior shell space of the reactor in a flow pattern that is counter-current with the flow of the feed gas; and withdrawing the coolant from the upstream region and supplying at least a portion of the coolant withdrawn from the upstream region to the downstream region in a flow pattern that is co-current with the flow of the feed gas.

Agglomerated ODH catalyst

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, preferably extruded with supports selected from the group consisting of slurries of TiO ...

PROCESS FOR PRODUCING UNSATURATED NITRILE

A process for producing unsaturated nitrile, using a fluidized bed reactor and comprising a reaction step of subjecting hydrocarbon to a vapor phase catalytic ammoxidation reaction in the presence of a catalyst to produce the corresponding unsaturated nitrile, wherein when an internal space of the reactor is divided into two spaces of an upper space occupying a space from an upper end of an inlet of a cyclone to an upper end of the internal space and a lower space occupying a space below the upper end of the inlet of the cyclone and ranging to a dispersion plate, a ratio of an existing amount of the catalyst in the upper space to an existing amount of the catalyst in the lower space is 0.05 to 0.45 in the reaction step.

Synthese eines MoVNbTe-Katalysators mit reduziertem Gehalt an Niob und Tellur und höherer Aktivität für die oxidative Dehydrierung von Ethan

Die Erfindung betrifft ein Mischoxidmaterial umfassend die Elemente Molybdän, Vanadium, Niob und Tellur, das im XRD, bei Verwendung der Cu-Kα-Strahlung, Beugungsreflexe h, i, k und 1 aufweist, deren Scheitelpunkte ungefähr bei den Beugungswinkeln (2θ) 26,2° ± 0,5° (h) , 27,0° ± 0,5° (i), 7,8° ± 0,5° (k) und 28,0° ± 0,5° (1) liegen, dadurch gekennzeichnet, dass es folgende Stöchiometrie aufweist:a = 0,2 bis 0,35,b = größer 0 bis 0,08,c = größer 0 bis 0,08,n = eine Zahl, die durch die Wertigkeit und Häufigkeit der von Sauerstoff verschiedenen Elemente in (I) bestimmt wird.

Catalyst and use of same

电化学催化剂包含具有锐钛矿型晶体结构的氧化钛，在所述氧化钛的一个粒子中，每单位表面积的顶点密度为8.0×10 ‑4 nm ‑2 以上，或每单位体积的顶点密度为7.0×10 ‑4 nm ‑3 以上，并且每单位表面积的棱线密度为5.0×10 ‑2 nm ‑1 以上，或每单位体积的棱线密度为8.0×10 ‑3 nm ‑2 以上。阴极至少在表面担载有所述电化学催化剂。醇合成用膜电极接合体具备阳极、所述阴极、以及在所述阳极与所述阴极之间的电解质膜。

Low level noble metal-supporting three-way catalyst

The invention provides a catalyst for catalytically removing three components, which are carbon monoxide, hydrocarbons and nitrogen oxides, from combustion exhaust gas generated by combusting fuel at around the stoichiometric air to fuel ratio. The catalyst includes: (A) a first catalyst component including at least rhodium, platinum, or palladium in a content of 0.01 to 0.5% by weight; and (B) a second catalyst component, which is the remainder, including a composite oxide or a mixed oxide including (a) at least zirconium oxide or titanium oxide, and (b) an oxide of at least praseodymium, yttrium, neodymium, tungsten, niobium, silicon, or aluminum, wherein the content of the oxide (a) in the composite oxide or the mixed oxide is in a range of 70 to 95% by weight. The invention further provides a two-layer catalyst that includes a surface catalyst layer containing the above-mentioned catalyst.

Activated mixed metal oxide oxidation catalysts

혼합 금속 산화물 촉매를 물과 임의로 수성 금속 산화물 전구체와 접촉시켜, 변형된 혼합 금속 산화물을 생성하고, 변형된 혼합 금속 산화물을 하소하여 촉매를 제조하는 방법. Contacting the mixed metal oxide catalyst with water and optionally an aqueous metal oxide precursor to produce a modified mixed metal oxide and calcining the modified mixed metal oxide to produce a catalyst. 혼합 금속 산화물, 촉매 Mixed metal oxides, catalysts

Process for producing unsaturated nitrile

A process for producing unsaturated nitrile, using a fluidized bed reactor and comprising a reaction step of subjecting hydrocarbon to a vapor phase catalytic ammoxidation reaction in the presence of a catalyst to produce the corresponding unsaturated nitrile, wherein when an internal space of the reactor is divided into two spaces of an upper space occupying a space from an upper end of an inlet of a cyclone to an upper end of the internal space and a lower space occupying a space below the upper end of the inlet of the cyclone and ranging to a dispersion plate, a ratio of an existing amount of the catalyst in the upper space to an existing amount of the catalyst in the lower space is 0.05 to 0.45 in the reaction step.

Verfahren zur Herstellung molybdänhaltiger Mischoxidmaterialien

Die Erfindung betrifft ein Verfahren zur Herstellung eines Mischoxidmaterials, enthaltend die Elemente Molybdän, Vanadium, Niob und Tellur, umfassend die folgenden Schritte:a) Herstellen eines Gemisches aus Ausgangsverbindungen, das Molybdän, Vanadium, Niob und eine Tellur enthaltende Ausgangsverbindung, in der Tellur in der Oxidationsstufe +4 vorliegt, enthält,b) hydrothermale Behandlung des Gemisches aus Ausgangsverbindungen bei einer Temperatur von 100 °C bis 300 °C, um eine Produktsuspension zu erhalten,c) Abtrennen und Trocknen des Feststoffes der aus Schritt b) resultierenden Produktsuspension,d) Aktivieren des Feststoffes in inertem Gas, um das Mischoxidmaterial zu erhalten, dadurch gekennzeichnet, dass die Tellur enthaltende Ausgangsverbindung eine Partikelgröße Dkleiner 100 µm aufweist.

아이소뷰틸렌 제조용 촉매, 및 그것을 이용한 아이소뷰틸렌의 제조 방법

... 보다 저온도 영역에서 고수율로 아이소뷰틸렌을 제조할 수 있는 촉매, 및 그것을 이용한 아이소뷰틸렌의 제조 방법을 제공한다. 몰리브덴 및 텅스텐으로부터 선택되는 하나 이상의 원소와, 탄탈럼, 니오븀 및 타이타늄으로부터 선택되는 하나 이상의 원소를 포함하는 산화물인 아이소뷰틸렌 제조용 촉매.

산화물 촉매의 제조 방법 및 불포화 니트릴의 제조 방법

Mo, V, Sb 및 Nb를 포함하는 산화물 촉매의 제조 방법으로서, Mo, V 및 Sb를 포함하는 수성 혼합액(A)을 조제하는 서브 공정(I)과, 상기 수성 혼합액(A)에 과산화수소를 첨가함으로써, 상기 수성 혼합액(A)의 산화를 촉진하여 수성 혼합액(A')을 얻는 서브 공정(II)과, 상기 수성 혼합액(A')과 Nb 원료액(B)을 혼합하여 수성 혼합액(C)을 얻는 서브 공정(III)을 포함하는 원료 조합 공정과, 상기 수성 혼합액(C)을 건조시켜 건조 분체를 얻는 건조 공정과, 상기 건조 분체를 불활성 가스 분위기하에 소성하는 소성 공정을 포함하며, 상기 수성 혼합액(A)에 상기 과산화수소를 첨가하고 나서 상기 Nb 원료액(B)과의 혼합까지의 시간이 5분 미만이고, 상기 서브 공정(III)에 제공하기 전의 상기 수성 혼합액(A')의 산화 환원 전위가 150∼350 mV인 산화물 촉매의 제조 방법.

MULTI-METAL OXIDE CATALYST AND METHOD FOR PRODUCING (METH)ACRYLIC ACID BY USING THE SAME

OXIDATIVE DEHYDROGENATION CATALYST

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H 2 O 2 in an amount equivalent to 0.30-2.8 mL H 2 O 2 of a 30% solution per gram of catalyst precursor prior to calcining.

Process of alkane oxidative dehydrogenation and/or alkene oxidation

The invention relates to a process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms, wherein oxygen, water and the alkane and/or alkene are fed to a reactor and are contacted with a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium in the reactor, and wherein the molar ratio of water as fed to the reactor to oxygen as fed to the reactor is smaller than 1:1.

KATALYSATORHERSTELLUNG UND VERWENDUNG FÜR DIE ACRYLSÄUREHERSTELLUNG

Oxidative dehydrogenation catalyst

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining.

Synthese eines MoVNbTe-Katalysators mit erhöhter spezifischer Oberfläche und höherer Aktivität für die oxidative Dehyxdrierung von Ethan zu Ethylen

Die Erfindung betrifft ein Mischoxidmaterial, umfassend die Elemente Molybdän, Vanadium, Niob und Tellur, das, bei Verwendung der Cu-Kα-Strahlung, im XRD Beugungsreflexe h, i, k und l aufweist, deren Scheitelpunkte bei den Beugungswinkeln (2θ) 26,2° ± 0,5° (h), 27,0° ± 0,5° (i), 7,8° ± 0,5° (k) und 28,0° ± 0,5° (l) liegen, dadurch gekennzeichnet, dass das Mischoxidmaterial ein Porenvolumen von > 0,1 cm/g aufweist. Das erfindungsgemäße Mischoxidmaterial wird hergestellt durch ein Verfahren umfassend die Schritte:a) Herstellen eines Gemisches aus Ausgangsverbindungen, das Molybdän, Vanadium, Niob und Tellurdioxid als Tellur enthaltende Ausgangsverbindung enthält sowie Oxalsäure und einen weiteren Oxoliganden, ausgewählt aus der Gruppe von Dicarbonsäuren und Diole,b) hydrothermale Behandlung des Gemisches aus Ausgangsverbindungen bei einer Temperatur von 100 bis 300 °C,c) Abtrennen und Trocknen des Mischoxidmaterials, das in der aus Schritt b) resultierenden Suspension enthalten ist.

catalisador de óxido multi-metálico e método para produção de ácido (met) acrílico pelo uso do mesmo

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

The present invention provides a MoBiNb based composite metal oxide (with the proviso that Te is not included); a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a MoBiNb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst; and a reactor used for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a MoBiNb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst. Further, the present invention provides a method for producing the (meth)acrylic acid without any additional process of converting (meth)acrolein into (meth)acrylic acid.

Calcination process to produce enhanced ODH catalyst

Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.

MULTI-METAL OXIDE CATALYST AND METHOD FOR PRODUCING (METH)ACRYLIC ACID BY USING THE SAME

The present invention provides a MoBiNb based composite metal oxide (with the proviso that Te is not included); a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a MoBiNb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst; and a reactor used for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a MoBiNb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst. Further, the present invention provides a method for producing the (meth)acrylic acid without any additional process of converting (meth)acrolein into (meth)acrylic acid.

Oxidative dehydrogenation catalyst compositions

Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20AlcOd wherein c is from 0 to 2.0 and d is a number to satisfy the valence of the oxide. The compositions are at least 40 wt. % amorphous as measured by XRD. The disclosure also provides methods of making the compositions.

Agglomerated ODH catalysts

OXIDATIVE DEHYDROGENATION (ODH) OF ETHANE

MIXED CATALYST

SYNTHESIS OF A MOVNBTE CATALYST HAVING A REDUCED NIOBIUM AND TELLURIUM CONTENT AND HIGHER ACTIVITY FOR THE OXIDATIVE DEHYDROGENATION OF ETHANE

A novel mixed oxide material is disclosed which contains molybdenum, vanadium, tellurium and niobium and the use of the molybdenum mixed oxide material as catalyst for the oxidative dehydrogenation of ethane to ethene or the oxidation of propane to acrylic acid and a process for producing the mixed oxide material.

Dehydrogenation catalyst

The present invention relates to a dehydrogenation catalyst in which a platinum-group metal, an assistant metal, and an alkali metal or alkaline earth metal component are supported on a carrier, wherein the molar ratio of platinum to the assistant metal is 0.5 to 1.49, and the catalyst has an acidity amount of 20 to 150 μmol KOH/g catalyst when it is titrated with KOH. The dehydrogenation catalyst according to the present invention may prevent coke formation from increasing rapidly when the hydrogen/hydrocarbon ratio in a dehydrogenation reaction is reduced, thereby increasing the productivity of the process. Accordingly, it makes it possible to operate the process under a condition in which the hydrogen/hydrocarbon ratio in a dehydrogenation reaction is reduced, thereby improving the economy of the process.

the SCR catalyst

Agglomerated ODH catalyst

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports chosen from slurries of TiO2, ZrO2 Al2O3, AlO(OH) and mixtures thereof have a lower temperature at which 25% conversion is obtained.

Synthese eines MoVTeNb-Katalysators aus preisgünstigen Metalloxiden

Die Erfindung betrifft ein Verfahren zur Herstellung eines Mischoxidmaterials, umfassend die Schritte:a) Herstellen eines Gemisches aus Ausgangsverbindungen, das Molybdän, Vanadium, Niob und Tellur enthaltende Ausgangsverbindungen sowie zwei chelatisierende Oxoliganden enthält,b) hydrothermale Behandlung des Gemisches aus Ausgangsverbindungen bei einer Temperatur von 100 °C bis 300 °C, um eine Produktsuspension zu erhalten,c) Abtrennen und Trocknen des Feststoffes, der in der aus Schritt b) resultierenden Produktsuspension enthalten ist,d) Aktivieren des aus Schritt c) erhaltenen Feststoffes in inertem Gas.Die Erfindung betrifft auch ein Mischoxidmaterial für die Oxidation von Ethan, umfassend die Elemente Molybdän, Vanadium, Niob und Tellur, mit folgender Stöchiometrie:mit 0,27 < a < 0,31; 0,08 < b < 0,12; 0,08 < c < 0,12,das im XRD, bei Verwendung der Cu-Kα-Strahlung, Beugungsreflexe h, i, k und 1 aufweist, deren Scheitelpunkte ungefähr bei den Beugungswinkeln (2θ) 26,2° ± 0,5° (h) , ...

OXIDATIVE DEHYDROGENATION (ODH) OF ETHANE

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor and allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; and supplying a coolant to an interior shell space of the multitubular fixed-bed reactor in a flow pattern that is co-current with the flow of the feed gas through reactor.

KATALYSATORHERSTELLUNG UND VERWENDUNG FÜR DIE ACRYLSÄUREHERSTELLUNG

Activated mixed metal oxide oxidation catalysts

catalisador de irídio para abertura seletiva de anéis naftênicos

PROCESS FOR PRODUCING OXIDE CATALYST AND PROCESS FOR PRODUCING UNSATURATED NITRILE

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

本发明提供了一种基于Mo-Bi-Nb的复合金属氧化物(但不包含Te)；一种由选自由丙烯、丙烷、异丁烯、叔丁醇和甲基-叔丁基醚组成的组中的至少一种反应物来制备(甲基)丙烯酸的方法，其中基于Mo-Bi-Nb的复合金属氧化物(但不包含Te)用作催化剂；和一种用于由选自由丙烯、丙烷、异丁烯、叔丁醇和甲基-叔丁基醚组成的组中的至少一种反应物来制备(甲基)丙烯酸的反应器，其中基于Mo-Bi-Nb的复合金属氧化物(但不包含Te)用作催化剂。此外，本发明提供了一种采用基于Mo-Bi-Nb的复合金属氧化物作为催化剂由选自由丙烯、丙烷、异丁烯、叔丁醇和甲基-叔丁基醚组成的组中的至少一种反应物来制备(甲基)丙烯酸的方法，其无需任何将(甲基)丙烯醛转化为(甲基)丙烯酸的另外步骤。

catalisador de óxido multi-metálico e método para produção de ácido (met) acrìlico pelo uso do mesmo

개량된 산화적 탈수소화 촉매

... 향상된 일관성의 조성 및 420℃ 미만의 25% 에틸렌 변환율 및 95% 이상의 에틸렌 선택성을 나타내는 MoVNbTeO를 함유하는 산화적 탈수소화 촉매는 촉매 전구체를 하소 전에 H2O2로 촉매 전구체 1g당 30% H2O2 용액 0.30 내지 2.8mL에 등가인 양으로 처리하여 제조한다.

Agglomerated ODH catalysts

프로필렌을 카르복실산 모이어티를 포함하는 생성물로 변환하는 촉매

... 본 발명은, MoVGaPdNbXY에서, X가 La, Te, Ge, Zn, In 또는 W를 포함하고; Y가 Al 또는 Si를 포함하며; Mo, V, Ga, Pd, Nb, La, Te, Ge, Zn, In, W, Al 또는 Si가 선택적으로 산소와 조합하여 존재하며; 프로필렌의 생성물로의 변환에서 촉매로서 작용하는 부가적인 원소를 포함하지 않는, MoVGaPdNbXY를 포함하는 새로운 촉매 조성물을 제공한다. 또한, 본 발명은, 프로필렌을 본 발명에서 개시되는 촉매와 접촉시킴으로써, 프로필렌을 카르복실산 모이어티로 변환하는 방법을 개시한다.

OXIDATIVE DEHYDROGENATION (ODH) OF ETHANE

catalisdorodh agglomerate

Method for producing oxide catalyst and method for producing unsaturated nitrile

A method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including: a raw material preparation step including sub-step (I) of preparing an aqueous mixed liquid (A) containing Mo, V, and Sb, sub-step (II) of adding hydrogen peroxide to the aqueous mixed liquid (A), thereby facilitating oxidation of the aqueous mixed liquid (A) and obtaining an aqueous mixed liquid (A′), and sub-step (III) of mixing the aqueous mixed liquid (A′) and a Nb raw material liquid (B), thereby obtaining an aqueous mixed liquid (C); a drying step of drying the aqueous mixed liquid (C), thereby obtaining a dried powder; and a calcination step of calcining the dried powder under an inert gas atmosphere, wherein a time elapsed from addition of the hydrogen peroxide to the aqueous mixed liquid (A) to mixing the Nb raw material liquid (B) therewith is less than 5 minutes and the aqueous mixed liquid (A′) before being subjected to the sub-step (III) has an oxidation-reduction potential of 150 to 350 mV.

Synthesis of a MoVNbTe catalyst having an increased specific surface and higher activity for the oxidative dehydrogenation of ethane to ethylene

A novel mixed oxide material is disclosed which comprises molybdenum, vanadium, tellurium and niobium and the use of the mixed oxide material as catalyst for the oxidative dehydrogenation of ethane to ethene or the oxidation of propane to acrylic acid and a process for producing the mixed oxide material.

SCR Catalyst

The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of niobium, and an exhaust system containing said oxides.

OXIDATIVE DEHYDROGENATION CATALYST (DHO) AGGLOMERATE AND METHOD FOR PREPARING IT

Catalizadores de deshidrogenación oxidativa para convertir parafinas inferiores en alquenos, por ejemplo, etano en etileno, en una preparación aglomerada, preferiblemente extruida con soportes seleccionados del grupo que consiste en suspensiones de TiO₂, ZrO₂, Al₂O₃, AlO(OH) o mezclas de éstos, con los cuales puede obtenerse una conversión de 25% a una temperatura más baja. Reivindicación 1: Un catalizador aglomerado caracterizado porque comprende (i) entre 10% y 95% en peso de un catalizador que tiene la siguiente fórmula: Mo₁,₀ V₀,₁₂ ₋ ₀,₄₉ Te₀,₆ ₋ ₀,₁₆ Nb₀,₁₅ ₋ ₀,₂₀ Oᵈ, donde d es un valor apropiado para satisfacer la valencia del óxido; y (ii) entre 5% y 90% en peso de un aglutinante seleccionado del grupo que consiste en suspensiones de aglutinantes ácidos, básicos o neutros de TiO₂, ZrO₂, Al₂O₃, AlO(OH) o mezclas de éstos, con la condición de que no se emplee ZrO2 con un aglutinante que contenga aluminio.

Method for producing oxide catalyst and method for producing unsaturated nitrile

A method for producing an oxide catalyst according to the present invention is a method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including:a raw material preparation step of obtaining an aqueous mixed liquid containing Mo, V, Sb, and Nb;an aging step of subjecting the aqueous mixed liquid to aging at more than 30° C.;a drying step of drying the aqueous mixed liquid, thereby obtaining a dried powder; anda calcination step of calcining the dried powder, thereby obtaining the oxide catalyst,wherein, in the raw material preparation step and/or the aging step, precipitation of Nb is facilitated by performing at least one operation selected from the group consisting of the following (I) to (III):(I) in the raw material preparation step, the aqueous mixed liquid is prepared by mixing a Nb raw material liquid containing Nb with a MoVSb raw material liquid containing Mo, V, and Sb, wherein ammonia is added to at least one of the MoVSb raw material liquid, the Nb raw ...

AGGLOMERATED ODH CATALYST

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports comprising slurries of NbO. 2. The agglomerated catalyst according to claim 1 , having a cumulative surface area less than 10 m/g as measured by BET and comprising less than 35 wt % of an non-antagonistic binder.3. The agglomerated catalyst according to claim 2 , having a cumulative pore volume from 0.020 to 0.20 cm3/g.4. The agglomerated catalyst according to claim 2 , having a pore size distribution less than 40% having pore width size less than 200 Angstroms.5. The agglomerated catalyst according to claim 2 , having a percent pore area distribution less than 30% and corresponding percentage of pore volume less than 10%.6. The agglomerated catalyst according to in the shape of a sphere claim 2 , rod claim 2 , ring claim 2 , or a saddle having a size from about 1.3 mm to 5 mm.7. The agglomerated catalyst according to claim 6 , wherein the NbOhydrate is acidified.8. The agglomerated catalyst according to claim 6 , wherein the NbOhydrate is treated with a base.9. The agglomerated catalyst according to claim 8 , in the shape of rods having an aspect ratio from 1 to 5/1.3 having a crush strength up to 110 N/mm.10. The agglomerated catalyst according to claim 8 , in the shape of spheres having a crush strength up to 110 N/mm.11. The agglomerated catalyst according to claim 1 , wherein the NbOhydrate is present in an amount less than 15 wt %.12. The agglomerated catalyst according to claim 1 , wherein the NbOhydrate is present in an amount greater than 15 wt %.19. The process according to claim 18 , wherein in step v) the particles are calcined at a temperature of less than 350° C.20. The process according 19 claim 18 , further comprising spheroidizing rod shaped agglomerated particles at a temperature up to 300° C. and then further calcining the resulting spheres at temperatures up to 600° C.21. ...

OXIDATIVE DEHYDROGENATION CATALYST COMPOSITIONS

Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: 1. A catalyst composition comprising an oxidative dehydrogenation catalyst comprising a mixed metal oxide having the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.25', '0.10-0.20', 'c', 'd, 'MoVTeNbAlO'} c is from 0 to 2.0,', 'd is a number to satisfy the valence of the oxide, and', 'the composition is at least 40 wt. % amorphous as measured by XRD., 'wherein2. The catalyst composition of claim 1 , wherein the composition is from 60 wt. % to 80 wt. % amorphous.3. The catalyst composition of claim 1 , wherein the composition further comprises an adjuvant.4. The catalyst composition of claim 3 , wherein the adjuvant comprises about 30 wt. % to about 90 wt. % of the catalyst composition.5. The catalyst composition of claim 4 , wherein the oxidative dehydrogenation catalyst comprises about 10 wt. % to about 70 wt. % of the catalyst composition.6. The catalyst composition of claim 1 , wherein the mixed metal oxide has the empirical formula:{'br': None, 'sub': 1.0', '0.12-0.49', '0.05-0.17', '0.10-0.20', 'c', 'd, 'MoVTeNbAlO'}wherein c is 0.01 to 2.0.7. The catalyst composition of claim 3 , wherein the adjuvant comprises an alumina.8. The catalyst composition of claim 7 , wherein the alumina comprises a boehmite.9. The catalyst composition of claim 1 , wherein the molar ratio of molybdenum to vanadium in the catalyst composition is from 1:0.12 to 1:0.49 claim 1 , the molar ratio of molybdenum to tellurium in the catalyst composition is from 1:0.05 to 1:0.25 claim 1 , the molar ratio of molybdenum to niobium in the catalyst composition is from 1:0.10 to 1:0.20 claim 1 , and the molar ratio of molybdenum to aluminum in the catalyst composition is from 0.01 to 2.0 claim 1 , as determined by PIXE.10. The catalyst composition of claim 1 , wherein the catalyst composition ...

Multi-metallic Catalyst System And Use Of The Same In Preparing Upgraded Fuel From Biomass

The present disclosure provides a multi-metallic catalyst system comprising at least one support, and at least one promoter component and an active component comprising at least two metals uniformly dispersed on the support. The present disclosure also provides a process for preparing the multi-metallic catalyst system. Further, the present disclosure provides a process for preparing upgraded fuel from biomass. The process is carried out in two steps. In the first step, a biomass slurry is prepared and is heated in the presence of hydrogen and a multi-metallic catalyst that comprises at least one support, at least one promoter component, and an active component comprising at least two metals to obtain crude biofuel as an intermediate product. The intermediate product obtained in the first step is then cooled and filtered to obtain a filtered intermediate product. In the second step, the filtered intermediate product is hydrogenated in the presence of the multi-metallic catalyst to obtain the upgraded fuel. The fuel obtained from the process of the present disclosure is devoid of heteroatoms such as oxygen, nitrogen and sulfur. 1. A multi-metallic catalyst system comprising:i. at least one alumina support;ii. a promoter component impregnated on said at least one support; wherein said promoter is at least one selected from the group consisting of Niobium (Nb) and Phosphorous (P); andiii. an active component comprising cobalt and molybdenum, being uniformly dispersed on said at least one support.2. The catalyst system as claimed in claim 1 , wherein said catalyst system is characterized by having BET surface area in the range of 165 to 170 m/g claim 1 , pore volume in the range of 0.48 to 0.50 cc/g claim 1 , pore width in the range of 78 to 82 Å claim 1 , and total acidity in the range of 0.810 to 0.812 mmol/g.3. The catalyst system as claimed in claim 1 , wherein said support is in at least one form selected from the group consisting of spheres claim 1 , extrudates ...

AGGLOMERATED ODH CATALYST

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports comprising slurries of NbO. 127-. (canceled)28. An agglomerated catalyst , wherein the agglomerated catalyst is prepared from at least: [{'br': None, 'sub': 1.0', '0.12-0.49', '0.6-0.16', '0.15-0.20', 'd, 'MoVTeNbO'}, 'wherein d is a number to satisfy the valence of the oxide; and, '10 wt. % to 95 wt. % of a catalyst active phase of the formula{'sub': 2', '5, '5 wt. % to 90 wt. % of NbOhydrate.'}29. The agglomerated catalyst according to claim 28 , further comprising up to 80 wt. % of a non-antagonistic binder.30. The agglomerated catalyst according to claim 29 , wherein the non-antagonistic binder is chosen from oxides of aluminum claim 29 , titanium claim 29 , and zirconium.31. The agglomerated catalyst according to claim 30 , wherein the non-antagonistic binder is present in the amount of 35 wt. % to 65 wt. % based on the weight of the agglomerated catalyst and the agglomerated catalyst has a surface area up to 250 m/g.32. The agglomerated catalyst according to 30 claim 30 , wherein the oxide of aluminum is Boehmite (Al(O)OH).33. The agglomerated catalyst according to claim 30 , wherein the non-antagonistic binder is an oxide of titanium.34. The agglomerated catalyst according to claim 30 , wherein the non-antagonistic binder is an oxide of zirconium.35. The agglomerated catalyst according to claim 28 , having a cumulative surface area less than 10 m/g as measured by BET and comprising less than 35 wt % of a non-antagonistic binder.36. The agglomerated catalyst according to claim 35 , having a cumulative pore volume from 0.020 to 0.20 cm/g.37. The agglomerated catalyst according to claim 35 , having a pore size distribution less than 40% and having a pore width size less than 200 Angstroms.38. The agglomerated catalyst according to claim 35 , having a percent pore area distribution less than ...

Catalyst and use of same

A catalyst comprising: a titanium oxide having an anatase-type crystal structure, and having the vertices and the ridge lines, wherein in a single titanium oxide particle, a vertex density per unit surface area is 8.0×10−4 nm−2 or more, and a ridge line density per unit surface area is 5.0×10−2 nm or more, or a ridge line density per unit volume is 8.0×10−3 nm−2 or more. A complex comprising: a material having a porous structure; and said catalyst. A membrane electrode assembly comprising: an anode; cathode; and an electrolyte membrane, wherein the cathode carries said catalyst on at least a surface of the cathode.

METHOD FOR PRODUCING OXIDE CATALYST AND METHOD FOR PRODUCING UNSATURATED NITRILE

A method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including: 1. A method for producing an oxide catalyst comprising Mo , V , Sb , and Nb , the method comprising: a sub-step (I) of preparing an aqueous mixed liquid (A) comprising Mo, V, and Sb,', 'a sub-step (II) of adding hydrogen peroxide to the aqueous mixed liquid (A), thereby facilitating oxidation of the aqueous mixed liquid (A) and obtaining an aqueous mixed liquid (A′), and', 'a sub-step (III) of mixing the aqueous mixed liquid (A′) and a Nb raw material liquid (B), thereby obtaining an aqueous mixed liquid (C);, 'a raw material preparation step comprising'}a drying step of drying the aqueous mixed liquid (C), thereby obtaining a dried powder; anda calcination step of calcining the dried powder under an inert gas atmosphere,wherein a time elapsed from addition of the hydrogen peroxide to the aqueous mixed liquid (A) to mixing the Nb raw material liquid (B) therewith is less than 5 minutes andthe aqueous mixed liquid (A′) before being subjected to the sub-step (III) has an oxidation-reduction potential of 150 to 350 mV.2. The method for producing the oxide catalyst according to claim 1 , wherein in the drying step claim 1 , the aqueous mixed liquid (C) has an oxidation-reduction potential of less than 450 mV.3. The method for producing the oxide catalyst according to claim 1 , wherein the oxide catalyst is represented by the following formula (1):{'br': None, 'sub': 1', 'a', 'b', 'c', 'd', 'e', 'n, 'MoVNbSbTZO\u2003\u2003(1)'}wherein T represents at least one element selected from Ti, W, Mn, and Bi; Z represents at least one element selected from La, Ce, Yb, and Y; a, b, c, d, and e represent atomic ratios of respective elements when an atomic ratio of Mo is 1, and are in a range of 0.05≤a≤0.3, 0.01≤b≤0.15, 0.05≤c≤0.3, 0≤d≤0.1, and 0≤e≤0.1 respectively; and n represents a value satisfying a balance of atomic valences.4. The method for producing the oxide catalyst according to ...

METHOD FOR PREPARING MIXED METAL OXIDE CATALYSTS CONTAINING MOLYBDENUM AND BISMUTH

The present invention relates to a process for producing mixed oxide catalysts on the basis of molybdenum and bismuth oxides in which the precursor compounds of the components of mixed oxide catalysts provided in the form of a solution and/or suspension are subjected to a spray-drying with a specific temperature regime and the spray particles obtained in this way are then calcined to yield a catalytic active mass, and to the mixed oxide catalysts obtainable by this process and to the use of these catalysts in the partial oxidation of olefms, in particular in the partial gas phase oxidation of propene to acrolein and acrylic acid. The spray drying of the precursor compounds containing solution or suspension is performed in concurrent with a gas stream having a specific entrance temperature. Alternatively, when the main gas stream has a higher entrance temperature, an additional colder gas stream can be fed in downstream. The thus obtained mixed oxide catalysts give lower a maximum temperature in the hot spot of catalyst fixed bed when they are used in the partial gas phase oxidation of olefms. 1. A process for producing a mixed oxide catalyst , the process comprisinga) providing a solution and/or suspension of precursor compounds of components of mixed oxide catalyst, wherein the solution and/or suspension contains a precursor compound of bismuth and a precursor compound of molybdenum or a precursor compound of bismuth and molybdenum, and wherein, when the suspension is subjected to spray-drying, a concentration of solids in the suspension is 10 to 50% by weight,b) spray-drying the solution and/or suspension provided in a) in cocurrent together with a gas stream having an entrance temperature into a spray dryer of 160+/−10° C. to 200+/−10° C. and an exit temperature from the spray dryer of 90+/−10° C. to 105+/−10° C., wherein the gas stream has a mean flow velocity in the spray dryer of 2.0+/−0.3 cm/s to 4.5+/−0.3 cm/s, orb′) spray-drying the solution and/or ...

Denitrification catalyst for vessel, using ceramic nanotubes grown on porous metal structure, and preparation method thereof

A denitrification catalyst using ceramic nanotubes grown on a porous metal structure, including: a porous metal structure having a plurality of pores formed between metal supports such that exhaust gas penetrates through the pores in multiple directions; ceramic nanotubes grown on the porous metal structure through anodic oxidation; and an active material uniformly and highly dispersed as a nano-thin film layer on inner and outer surfaces of the ceramic nanotubes through a deposition or supporting process.

METHOD FOR PRODUCING OXIDE CATALYST AND METHOD FOR PRODUCING UNSATURATED NITRILE

A method for producing an oxide catalyst according to the present invention is a method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including: 1. A method for producing an oxide catalyst comprising Mo , V , Sb , and Nb , the method comprising:a raw material preparation step of obtaining an aqueous mixed liquid comprising Mo, V, Sb, and Nb;an aging step of subjecting the aqueous mixed liquid to aging at more than 30° C.;a drying step of drying the aqueous mixed liquid, thereby obtaining a dried powder; anda calcination step of calcining the dried powder, thereby obtaining the oxide catalyst, [{'sub': '3', '(I) in the raw material preparation step, the aqueous mixed liquid is prepared by mixing a Nb raw material liquid comprising Nb with a MoVSb raw material liquid comprising Mo, V, and Sb, wherein ammonia is added to at least one of the MoVSb raw material liquid, the Nb raw material liquid, and the aqueous mixed liquid such that a molar ratio in terms of NH/Nb in the aqueous mixed liquid is adjusted to be 0.7 or more, and in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 50° C.;'}, '(II) in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 65° C.; and', {'sub': 2', '2, '(III) in the raw material preparation step, the aqueous mixed liquid is prepared by mixing a Nb raw material liquid comprising Nb with a MoVSb raw material liquid comprising Mo, V, and Sb, wherein a molar ratio in terms of HO/Nb in the Nb raw material liquid is adjusted to less than 0.2, and in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 50° C.'}], 'wherein, in the raw material preparation step and/or the aging step, precipitation of Nb is facilitated by performing at least one operation selected from the group consisting of the following (I) to (III)3. The method for producing the oxide catalyst according to claim 1 , wherein the oxide catalyst comprises 30% by mass ...

AGGLOMERATED ODH CATALYST

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports chosen from slurries of TiO, ZrOAlO, AlO(OH) and mixtures thereof have a lower temperature at which 25% conversion is obtained. 1. An agglomerated catalyst comprising: [{'br': None, 'sub': 1.0', '0.12-0.49', '0.06-0.16', '0.15-0.20', 'd, 'MoVTeNbO'}, 'as measured by PIXE and wherein d is a number to satisfy the valence of the oxide; and, '10 wt. % to 95 wt. % of a catalyst of the formula{'sub': 2', '2', '3, '5 wt. % to 90 wt. % of a binder chosen from TiO, AlO, AlO(OH), and mixtures thereof.'}2. The agglomerated catalyst of claim 1 , having a cumulative surface area of less than 35 m/g as measured by BET.3. The agglomerated catalyst of claim 1 , having a cumulative pore volume from 0.05 to 0.50 cm/g.4. The agglomerated catalyst of claim 1 , having a pore size distribution with less than 4% having a pore width size less than 150 Angstroms.5. The agglomerated catalyst of claim 1 , wherein the agglomerated catalyst is in the shape of a sphere claim 1 , rod claim 1 , ring claim 1 , or a saddle.6. The agglomerated catalyst of claim 5 , wherein the agglomerated catalyst has an average size from 1.3 mm to 5 mm.7. The agglomerated catalyst of claim 5 , wherein the binder is an acidified binder.8. The agglomerated catalyst of claim 5 , wherein the binder is a base treated binder.9. The agglomerated catalyst of claim 7 , wherein the agglomerated catalyst is in the shape of a rod having an aspect ratio from 1 to 5/1.3 and a crush strength up to 100 N/mm.10. The agglomerated catalyst of claim 8 , wherein the agglomerated catalyst is in the shape of a rod having an aspect ratio from 1 to 5/1.3 and a crush strength up to 100 N/mm.11. The agglomerated catalyst of claim 7 , wherein the agglomerated catalyst is in the shape of a sphere having a crush strength up to 100 N.12. The agglomerated catalyst of claim 8 ...

CATALYST FOR ALKANE OXIDATIVE DEHYDROGENATION AND/OR ALKENE OXIDATION

The invention relates to a process for treating a catalyst for alkane oxidative dehydrogenation and/or alkene oxidation, which catalyst is a mixed metal oxide catalyst containing molybdenum, vanadium and niobium, wherein the process comprises: contacting the catalyst with a gas mixture comprising an inert gas and oxygen (O), wherein the amount of oxygen is of from 10 to less than 10,000 parts per million by volume (ppmv), based on the total volume of the gas mixture, at an elevated temperature. 1. A process for the oxidative dehydrogenation of ethane , comprising contacting ethane with a mixed metal oxide catalyst containing molybdenum , vanadium , tellurium and niobium under dehydrogenation conditions wherein the catalyst is pretreated by: contacting the catalyst with a gas mixture comprising an inert gas and oxygen (O) , wherein the amount of oxygen is from 250 to 10 ,000 parts per million by volume (ppmv) , based on the total volume of the gas mixture , at an elevated temperature.2. (canceled)3. A process according to claim 1 , wherein the temperature is of from 300 to 900° C.4. A process according to claim 1 , wherein the temperature is of from 400 to 800° C.5. A process according to claim 1 , wherein the temperature is of from 500 to 700° C.6. A process according to claim 1 , wherein the temperature is of from 550 to 650° C.7. A process according to claim 1 , wherein the amount of oxygen is of from 400 to 9 claim 1 ,000 parts per million by volume.8. A process according to claim 1 , wherein the amount of oxygen is of from 600 to 8 claim 1 ,500 parts per million by volume.9. A process according to claim 1 , wherein the amount of oxygen is of from 800 to 8 claim 1 ,000 parts per million by volume.10. A process according to claim 1 , wherein the amount of oxygen is of from 900 to 7 claim 1 ,500 parts per million by volume. The present application is a divisional application of U.S. patent application Ser. No. 14/398,508, filed Nov. 3, 2014 which is a National ...

METHOD FOR PRODUCING OXIDE CATALYST AND METHOD FOR PRODUCING UNSATURATED NITRILE

The present invention relates to a method for producing an oxide catalyst containing Mo, V, Sb, and Nb, the method including a raw material preparation step of obtaining an aqueous mixed liquid containing Mo, V, Sb, and Nb, an aging step of subjecting the aqueous mixed liquid to aging at more than 30° C., a drying step of drying the aqueous mixed liquid, thereby obtaining a dried powder, and a calcination step of calcining the dried powder, thereby obtaining the oxide catalyst, and a method for producing an unsaturated nitrile or an unsaturated acid by using the catalyst. 1. A method for producing an unsaturated nitrile , the method comprising the steps of:producing an oxide catalyst by following steps of:a raw material preparation step of obtaining an aqueous mixed liquid comprising Mo, V, Sb, and Nb;an aging step of subjecting the aqueous mixed liquid to aging at more than 30° C.;a drying step of drying the aqueous mixed liquid, thereby obtaining a dried powder; anda calcination step of calcining the dried powder, thereby obtaining the oxide catalyst, [{'sub': '3', '(I) in the raw material preparation step, the aqueous mixed liquid is prepared by mixing a Nb raw material liquid comprising Nb with a MoVSb raw material liquid comprising Mo, V, and Sb, wherein ammonia is added to at least one of the MoVSb raw material liquid, the Nb raw material liquid, and the aqueous mixed liquid such that a molar ratio in terms of NH/Nb in the aqueous mixed liquid is adjusted to be 0.7 or more, and in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 50° C.;'}, '(II) in the aging step, a temperature of the aqueous mixed liquid is adjusted to more than 65° C.; and', {'sub': 2', '7, '(III) in the raw material preparation step, the aqueous mixed liquid is prepared by mixing a Nb raw material liquid comprising Nb with a MoVSb raw material liquid comprising Mo, V, and Sb, wherein a molar ratio in terms of HO/Nb in the Nb raw material liquid is adjusted ...

CALCINATION PROCESS TO PRODUCE ENHANCED ODH CATALYST

Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature. 1. A method to calcine a catalyst precursor of the formula{'br': None, 'sub': 1', '0.1-1', '0.1-1', '0.1-1', '0.1-1', '0.01-0.2', '0.2', 'd, 'MoVVNbNbTeXO'} calcining the catalyst precursor in an inert container with flow passage there through, at a rate from 0.5 to 10° C. per minute from room temperature to a holding temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a rate of flow comparable to a flow rate of not less 150 sccm through a 2.54 cm diameter tube, with a length of 152 cm at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C.;', 'holding the catalyst precursor at the holding temperature for at least 2 hours; and', 'cooling the catalyst precursor to room temperature said catalyst precursor being fully or partially enclosed by a porous material having a melting temperature greater than 600° C., 'where X is chosen from Pd, Sb Ba, Al, W, Ga, Bi, Sn, Cu, Ti, Fe, Co, Ni, Cr, Zr, Ca, oxides thereof and mixtures thereof, and d is a number to satisfy the valence of the catalyst while maintaining an amorphous content of not less than 40 wt. % the method comprising'}2. The method according to claim 1 , wherein the inert container is made from high temperature ...

Katalyzátor

Katalis

Catalyst.

ニオブおよびテルルの低下した含有量ならびにエタンの酸化的脱水素化に対するより高い活性を有するＭｏＶＮｂＴｅ触媒の合成

本発明は、元素モリブデン、バナジウム、ニオブおよびテルルを含み、ＸＲＤにおいて、Ｃｕ−Ｋα線を使用した際、回折反射ｈ、ｉ、ｋおよびｌを有し、それらのピークがおよそ回折角（２θ）２６．２°±０．５°（ｈ）、２７．０°±０．５°（ｉ）、７．８°±０．５°（ｋ）および２８．０°±０．５°（ｌ）に位置する、混合酸化物材料であって、以下の化学量論比：Ｍｏ１ＶａＮｂｂＴｅｃＯｎ（Ｉ）（式中、ａ＝０．２〜０．３５、ｂ＝０超０．０８まで、ｃ＝０超０．０８まで、ｎ＝（Ｉ）中の酸素ではない元素の原子価および存在量によって定まる数）を有することを特徴とする、混合酸化物材料に関する。

Method for producing compound

【課題】反応器に損傷を与えることなく、触媒の飛散を抑制しながら、化合物を高収率で得ることのできる化合物の製造方法を提供することを目的とする。 【解決手段】 触媒が流動可能に収納された内部空間と、流動床反応器に炭化水素を含む原料ガスを供給する第一の供給口と、前記流動床反応器に酸素を含む酸素含有ガスを供給する第二の供給口と、前記流動床反応器から反応生成ガスを排出する排出口と、を有する前記流動床反応器を用い、前記内部空間内で、前記触媒の存在下で前記炭化水素を気相接触酸化反応又は気相接触アンモ酸化反応に供することによりそれぞれ対応する不飽和酸又は不飽和ニトリルを製造する反応工程を有し、該反応工程において、前記第一の供給口における前記原料ガスの線速度（ｍ/ｓｅｃ）を、前記触媒の耐摩耗度（％）に対して、所定の関係を満たすように調整する、化合物の製造方法。 【選択図】なし An object of the present invention is to provide a method for producing a compound capable of obtaining a compound in a high yield while suppressing scattering of a catalyst without damaging a reactor. SOLUTION: An internal space in which a catalyst is flowably housed, a first supply port for supplying a raw material gas containing hydrocarbons to a fluidized bed reactor, and an oxygen-containing gas containing oxygen in the fluidized bed reactor. Using the fluidized bed reactor having a second supply port for supplying and a discharge port for discharging reaction product gas from the fluidized bed reactor, and in the interior space, the hydrocarbon in the presence of the catalyst In the gas phase catalytic oxidation reaction or gas phase catalytic ammoxidation reaction, respectively, to produce a corresponding unsaturated acid or unsaturated nitrile, and in the reaction step, the raw material in the first supply port A method for producing a compound, wherein a linear velocity (m / sec) of a gas is adjusted so as to satisfy a predetermined relationship with a degree of wear resistance (%) of the catalyst. [Selection figure] None

Catalyst and use of same

Synthesis of MoVNbTe Catalyst with Reduced Niobium and Tellurium Content and Higher Activity for Oxidative Dehydrogenation of Ethane

본 발명은 몰리브덴, 바나듐, 니오븀 및 텔루륨 원소를 포함하는 혼합 산화물 재료로서, Cu-Kα 방사선의 존재하에 XRD에서 회절 반사 h, i, k 및 l를 갖고, 상기 회절 반사가 대략 회절 각 (2θ) 26.2°±0.5°(h), 27.0°±0.5°(i), 7.8°±0.5°(k) 및 28.0°±0.5°(l)에서 피크를 갖고, Mo 1 V a Nb b Te c O n (I) (여기서, a = 0.2 내지 0.35, b = 0 초과 내지 0.08, c = 0 초과 내지 0.08, n = (I)에서 산소 이외의 원소들의 원자가 및 존재비에 의해 결정된 정수)를 특징으로 하는, 혼합 산화물 재료에 관한 것이다. The present invention is a mixed oxide material comprising the elements molybdenum, vanadium, niobium and tellurium, which has diffractive reflections h, i, k and 1 in XRD in the presence of Cu-Kα radiation, wherein the diffraction reflection is approximately at a diffraction angle (2θ) ) with peaks at 26.2°±0.5°(h), 27.0°±0.5°(i), 7.8°±0.5°(k) and 28.0°±0.5°(l), Mo 1 V a Nb b Te c O n (I) (where a = 0.2 to 0.35, b = greater than 0 to 0.08, c = greater than 0 to 0.08, n = an integer determined by the valence and abundance of elements other than oxygen in (I)) , to a mixed oxide material.

改进的氧化脱氢催化剂

通过在煅烧前用相当于每克催化剂前体0.30‑2.8mL 30%H 2 O 2 溶液的量的H 2 O 2 处理催化剂前体，制备包括MoVNbTeO的氧化脱氢催化剂，该催化剂具有改善的组成一致性，在低于420℃的25%乙烯转化率和高于95%生成乙烯的选择性。

Mixed catalyst

The method for being used to prepare the mixed oxide material containing molybdenum

本发明涉及一种用于制备混合氧化物材料的方法，所述混合氧化物材料包含元素钼、钒、铌和碲，所述方法包括以下步骤：a)制备初始化合物的混合物，所述混合物包含钼、钒、铌和包含碲的初始化合物，在所述包含碲的初始化合物中碲以+4的氧化态存在，b)在100℃至300℃的温度下以水热法处理所述初始化合物的混合物，以获得产物悬浮液，c)将从步骤b)产生的产物悬浮液的固体分离出来并干燥，d)在惰性气体中活化所述固体，以便获得所述混合氧化物材料，其特征在于，所述包含碲的初始化合物具有小于100μm的粒度D 90 。

Hydroprocessing catalysts and their production

The precursor of a hydroprocessing catalyst is made by impregnating a metal oxide component comprising at least one metal from Group 6 of the Periodic Table and at least one metal from Groups 8-10 of the Periodic Table with an amide formed from a first organic compound containing at least one amine group, and a second organic compound containing at least one carboxylic acid group. Following impregnation heat treatment follows to form in situ generated unsaturation additional to that in the two organic compounds. The catalyst precursor is sulfided to form an active, sulfide hydroprocessing catalyst.

Method for producing molybdenum-containing mixed oxide materials

本发明涉及一种用于制备混合氧化物材料的方法，所述混合氧化物材料包含元素钼、钒、铌和碲，所述方法包括以下步骤：a)制备初始化合物的混合物，所述混合物包含钼、钒、铌和包含碲的初始化合物，在所述包含碲的初始化合物中碲以+4的氧化态存在，b)在100℃至300℃的温度下以水热法处理所述初始化合物的混合物，以获得产物悬浮液，c)将从步骤b)产生的产物悬浮液的固体分离出来并干燥，d)在惰性气体中活化所述固体，以便获得所述混合氧化物材料，其特征在于，所述包含碲的初始化合物具有小于100μm的粒度D 90 。

METHOD FOR PRODUCING OXIDE CATALYST AND METHOD FOR PRODUCING UNSATURATED NITRILE AND UNSATURATED ACID

本発明は、アンチモンを含有する酸化物触媒の製造方法であって、 前記アンチモン源として三酸化二アンチモンを含むアンチモン粒子を用いて酸化物触媒を得る工程（Ａ）を含み、 ＸＰＳ分析において測定される、前記アンチモン粒子の表層の５価アンチモンの存在割合が、７０原子％未満であり、 前記アンチモン粒子の平均粒子径が、１．２μｍ以下である、酸化物触媒の製造方法、を提供する。

Method for Producing Mixed Metal Oxide Catalyst Containing Molybdenum and Bismuth

Method for producing oxide catalyst and method for producing unsaturated nitrile

본 발명은 Mo, V, Sb, 및 Nb를 포함하는 산화물 촉매의 제조 방법으로서, Mo, V, Sb, 및 Nb를 포함하는 수성 혼합액을 얻는 원료 조합 공정과, 상기 수성 혼합액을 30℃ 초과에서 숙성하는 숙성 공정과, 상기 수성 혼합액을 건조하여, 건조 분체를 얻는 건조 공정과, 상기 건조 분체를 소성하여, 상기 산화물 촉매를 얻는 소성 공정을 갖고, 상기 원료 조합 공정 및/또는 숙성 공정에 있어서, (Ⅰ)∼(Ⅲ)으로 이루어지는 군에서 선택되는 적어도 하나의 조작을 행함으로써, Nb의 석출을 촉진한다. 본 발명에 의하면, 불포화 니트릴 수율이 높은 산화물 촉매를 얻을 수 있고, 또한, 복잡한 공정의 도입 및 설비의 변경을 필요로 하지 않고 상기 산화물 촉매를 비교적 단시간에 제조할 수 있다. The present invention is a method for producing an oxide catalyst containing Mo, V, Sb, and Nb, a raw material combining process for obtaining an aqueous mixture containing Mo, V, Sb, and Nb, and aging the aqueous mixture at more than 30 ° C. a drying step of drying the aqueous mixture to obtain dry powder, and a calcining step of calcining the dry powder to obtain the oxide catalyst, in the raw material combining step and/or aging step, ( Precipitation of Nb is promoted by performing at least one operation selected from the group consisting of I) to (III). According to the present invention, an oxide catalyst having a high yield of unsaturated nitrile can be obtained, and the oxide catalyst can be produced in a relatively short time without introducing a complicated process and changing equipment.

The controlled pressure hydro-thermal process of ODH catalyst

使用水热步骤制备包含Mo、V、Nb和Te的氧化脱氢催化剂，通过在较高压力下进行水热步骤，同时允许气态产物离开反应器，来改善催化剂的活性和再现性。在一些情况下，冷凝器可以在压力释放阀的上游。

Catalyst

본 발명은, 고활성이며 기계적 강도가 큰 촉매를 제공하는 것을 목적으로 한다. 본 발명의 촉매는, 몰리브덴, 바나듐, 구리 및 안티몬을 필수 성분으로 함유하는 촉매로서, 촉매 활성성분의 제조시에 안티몬의 원료로서 아세트산 안티몬을 이용하여 조제된 촉매이고, 바람직하게는 아크롤레인을 기상접촉산화시켜 아크릴산을 제조하기 위해 사용된다. An object of the present invention is to provide a catalyst having high activity and high mechanical strength. The catalyst of the present invention is a catalyst containing molybdenum, vanadium, copper, and antimony as essential components, and is a catalyst prepared using antimony acetate as a raw material of antimony in the preparation of a catalytically active ingredient, preferably acrolein is brought into vapor phase contact. Used to prepare acrylic acid by oxidation.

Method for producing unsaturated nitrile

본 발명은, 유동상(流動床) 반응기를 이용하여, 촉매의 존재하, 탄화수소를 기상 접촉 암모산화 반응에 제공함으로써 대응하는 불포화 니트릴을 제조하는 반응 공정을 갖고, 상기 반응 공정에 있어서, 사이클론의 입구 상단으로부터 내부 공간의 상단까지의 공간을 차지하는 상부 공간과, 사이클론의 입구 상단보다 낮고 분산판까지의 공간을 차지하는 하부 공간의 2개의 공간으로 나누었을 때에, 하부 공간에 있어서의 촉매의 존재량에 대한 상부 공간에 있어서의 촉매의 존재량의 비가, 0.05~0.45인 불포화 니트릴의 제조 방법에 관한 것이다. The present invention has a reaction process for producing a corresponding unsaturated nitrile by providing a hydrocarbon in a gas phase contact ammoxidation reaction in the presence of a catalyst using a fluidized bed reactor, In the reaction step, when the upper space occupying a space from the upper end of the inlet of the cyclone to the upper end of the inner space and the lower space occupying a space lower than the upper end of the inlet of the cyclone and occupying a space up to the dispersion plate, Wherein the ratio of the amount of the catalyst present in the upper space to the amount of the catalyst present in the catalyst is 0.05 to 0.45.

Specific surface area and the higher synthesis by the active MoVNbTe catalyst that oxidative dehydrogenation of ethane is ethylene with increase

本发明涉及一种混合氧化物材料，包括元素钼、钒、铌和碲，所述混合氧化物材料在使用Cu‑Kα辐射时在XRD中具有如下的衍射反射h、i、k和l，其顶点位于衍射角度(2θ)26.2°±0.5°(h)，27.0°±0.5°(i)，7.8°±0.5°(k)和28.0°±0.5°(l)，其特征在于，所述混合氧化物材料具有>0.1cm 3 /g的孔体积。本发明的混合氧化物材料通过包括以下步骤的方法来制备：a)制备初始化合物的混合物，所述混合物包含钼、钒、铌和二氧化碲作为包含碲的初始化合物以及草酸和至少一种另外的含氧配体，所述含氧配体选自二羧酸和二醇的组，b)在100℃至300℃的温度下以水热法处理所述初始化合物的混合物，c)将包含在从步骤b)产生的悬浮液中的混合氧化物材料分离出来并干燥。

Multimetallic oxide composition

本发明涉及一种多金属氧化物材料，其含有元素Mo、V和Te和/或Sb、和元素Nb、Ti、Ta和Ce中的至少一种、和助催化剂，并具有特定的X－射线衍射图。还公开了所述多金属氧化物材料以气相中不完全氧化催化剂的形式用于多相烃类催化的用途。

Method for the production of a multi-metal oxide material

本发明公开了一种生产多金属氧化物材料的方法，该材料含有元素Mo、V和Te和/或Sb和元素Nb、Ti、W、Ta和Ce中的至少一种以及任选的促进剂且具有特殊X射线衍射图案。本发明方法中的最后工艺步骤包括用酸性液体洗涤的工艺。此外，还公开了可以由所述方法得到的多金属氧化物材料作为非均相催化气相部分氧化和/或气相部分氨氧化烃类的催化剂的用途。

Catalyst

本发明的目的是提供高活性和具有大的机械强度的催化剂。本发明的催化剂含有作为基本组分的钼、钒、铜和锑,通过使用醋酸锑作为锑源来生产该催化剂,以及优选将该催化剂用于通过丙烯醛的汽相催化氧化来生产丙烯酸。

Novel glycerol dehydration catalyst and production method therefor

本发明提供了一种能够使用甘油作为原料以高收率制造丙烯醛和丙烯酸的新型催化剂。所公开的甘油脱水用催化剂具有通过水热合成合成的铌氧化物作为主要成分。

Synthesis of MoVNbTe Catalyst with Increased Specific Surface Area and Higher Activity for Oxidative Dehydrogenation of Ethane to Ethylene

본 발명은 몰리브덴, 바나듐, 니오븀 및 텔루륨 원소를 포함하는 혼합 산화물 재료로서, Cu-Kα 방사선을 사용하면 XRD 스펙트럼에서 회절 반사 h, i, k 및 l을 갖고, 상기 회절 반사는 회절 각 (2θ) 26.2°±0.5°(h), 27.0°±0.5°(i), 7.8°±0.5°(k) 및 28.0°±0.5°(l)에서 이의 피크를 대략 갖고, > 0.1㎤/g의 공극 용적을 갖는 것을 특징으로 하는, 혼합 산화물 재료에 관한 것이다. 본 발명에 따른 혼합 산화물 재료는 a) 몰리브덴, 바나듐, 니오븀, 및 이산화텔루륨(텔루륨으로서)-함유 출발 화합물, 및 옥살산, 및 디카복실산과 디올로 이루어진 그룹으로부터 선택된 추가의 옥소 리간드를 함유하는 출발 화합물들의 혼합물을 제조하는 단계, b) 출발 화합물들의 혼합물을 100℃ 내지 300℃의 온도에서 열수 처리는 단계, c) 단계 b)에서 생성된 현탁액에 함유된 혼합 산화물 재료를 분리 및 건조시키는 단계를 포함하는 방법으로 제조된다. The present invention is a mixed oxide material comprising molybdenum, vanadium, niobium and tellurium elements, wherein when Cu-Kα radiation is used, it has diffractive reflections h, i, k and l in the XRD spectrum, and the diffraction reflection is a diffraction angle (2θ). ) approximately with its peaks at 26.2°±0.5°(h), 27.0°±0.5°(i), 7.8°±0.5°(k) and 28.0°±0.5°(l), with voids >0.1 cm3/g It relates to a mixed oxide material, characterized in that it has a volume. The mixed oxide material according to the invention comprises a) a starting compound containing molybdenum, vanadium, niobium, and tellurium dioxide (as tellurium), and an additional oxo ligand selected from the group consisting of oxalic acid and dicarboxylic acids and diols preparing a mixture of starting compounds, b) hydrothermal treatment of the mixture of starting compounds at a temperature of 100° C. to 300° C., c) separating and drying the mixed oxide material contained in the suspension produced in step b). It is prepared by a method comprising

Synthesis of MoVNbTe catalyst with increased specific surface area and higher activity for oxidative dehydrogenation of ethane to ethylene

本发明涉及一种混合氧化物材料，包括元素钼、钒、铌和碲，所述混合氧化物材料在使用Cu‑Kα辐射时在XRD中具有如下的衍射反射h、i、k和l，其顶点位于衍射角度(2θ)26.2°±0.5°(h)，27.0°±0.5°(i)，7.8°±0.5°(k)和28.0°±0.5°(l)，其特征在于，所述混合氧化物材料具有>0.1cm 3 /g的孔体积。本发明的混合氧化物材料通过包括以下步骤的方法来制备：a)制备初始化合物的混合物，所述混合物包含钼、钒、铌和二氧化碲作为包含碲的初始化合物以及草酸和至少一种另外的含氧配体，所述含氧配体选自二羧酸和二醇的组，b)在100℃至300℃的温度下以水热法处理所述初始化合物的混合物，c)将包含在从步骤b)产生的悬浮液中的混合氧化物材料分离出来并干燥。

Odh catalyst formulations

The oxidative dehydrogenation of ethane comprises contacting a mixture of ethane and oxygen in an ODH reactor with an ODH catalyst under conditions that promote oxidation of ethane into ethylene. Conditions within the reactor are controlled by the operator and include, but are not limited to, parameters such as 5 temperature, pressure, and flow rate. Conditions will vary and can be optimized for a specific catalyst, or whether an inert diluent is used in the mixing of the reactants. Disclosed herein is a catalyst consisting of: Mo0-1W0.3-1V0.2-0.4Te0.06-0.10Fe0.0-0.10Nb0.08-0.18OX where X is determined by the valance of the metals.

Denitrification catalyst for ship, using ceramic nanotubes grown on porous metal structure, and manufacturing method therefor

The present invention relates to a high-efficiency denitrification catalyst for a ship, allowing: a porous titanium or aluminum metal structure, which has a plurality of pores such that exhaust gas penetrates therethrough in multiple directions, to be manufactured as a three-dimensional metal structure instead of in a powder or honeycomb form; and ceramic (titania or alumina) nanotubes having a high specific surface area to be grown on the porous metal structure so as to deposit, in a highly dispersed manner, or to support a small amount of active metal, as a nano thin film layer, on the internal and external surfaces of the ceramic nanotubes, thereby having excellent productivity and feasibility and superior catalytic performance. In addition, according to the present invention, the denitrification catalyst for a ship can change the shape of the porous metal structure into various forms such as round and square shapes according to a structure of a denitrification system, such that the denitrification catalyst can be minimally and optimally provided in a limited space of a ship, and the denitrification catalyst is easily provided and maintenance and management thereof are convenient.

Catalyst material for the oxidation of hydrocarbons

A catalyst material for the oxidation and/or oxidative dehydrogenation of hydrocarbons, in particular for the selective oxidation of propane to acrylic acid, is specified, comprising a) molybdenum (Mo), b) vanadium (V), c) niobium (Nb), d) tellurium (Te), e) nickel (Ni), f) tungsten (W) and g) manganese (Mn), in which the molar ratio of at least one element, which is selected from nickel, tungsten and manganese, to molybdenum lies in the range 0.01 to 0.2, more preferably 0.05 to 0.15 and particularly preferably from 0.0025:1 to 0.3:1. Furthermore, a catalyst for the oxidation and/or oxidative dehydrogenation of hydrocarbons, a use of the catalyst material or of the catalyst, a method for producing a catalyst material for the oxidation and/or oxidative dehydrogenation of hydrocarbons and a method for the selective oxidation of propane to acrylic acid is specified.

Method for producing unsaturated nitrile

Provided is a method for preparing an unsaturated nitrile, the method comprising a reaction step in which hydrocarbon is subjected to a gas phase catalytic ammoxidation reaction using a fluidized bed reactor in the presence of a catalyst to produce the unsaturated nitrile, wherein, when the space in the reaction step is divided into two parts, that is, an upper space occupying the space extending from the top of the inlet of a cyclone to the top of the inner space, and a lower space occupying the space extending from below the top of the inlet of the cyclone to a dispersion plate, the ratio of the amount of the catalyst present in the upper space to the amount of the catalyst present in the lower space is 0.05-0.45.

Catalyst for Methacrolein Production

본 발명은 이소부틸렌으로 전환시킬 수 있는 화합물, 이소부틸렌 함유 화합물 또는 순수한 이소부틸렌을 기상 접촉 산화시켜 메타크로레인 및 메타크릴산을 제조하는데 사용되는 하기식의 금속 촉매에 관한 것이다. Mo 12 W a Bi b Nb c X d Y e Z f O g 상기 식에서, X는 K, Rb, Cs 및 Tl 중에서 선택한 적어도 1종 이상의 원소; Y는 Fe, Ni 및 Co 중에서 선택한 적어도 1종 이상의 원소; Z는 Zn 이나 Cr중의 1종 이상의 원소를 나타내며; a, b, c, d, e, f 및 g는 각각 W, Bi, Nb, X, Y, Z 및 O의 수를 나타내며; a는 0.05~0.8, b와 c는 각각 0.1~1.0, d는 0.05~2.0, e는 3~10, f는 0.2~2.0 및 g는 다른원소들의 원자 밸런스를 맞추기 위한 산소의 수이다.

Apparatus and method for producing catalyst, and method for producing unsaturated acid or unsaturated nitrile

An apparatus for producing a catalyst comprising a tank configured to prepare an aqueous mixed solution containing a Mo compound, a V compound and a Nb compound, a dryer configured to spray-dry the aqueous mixed solution, and a pipe for connecting the tank with the dryer so that the aqueous mixed solution can be supplied from the tank to the dryer, wherein a heater configured to heat the aqueous mixed solution is provided in the tank and/or the pipe, and a filter configured to filtrate the aqueous mixed solution is provided in the pipe.

METHOD FOR IMPROVING THE CONSISTENCY OF AN OXIDATIVE DEHYDROGENATION CATALYST AND METHOD FOR THE OXIDATIVE DEHYDROGENATION OF A MIXED ETHANE AND OXYGEN FOOD

catalistador de desidrogenação oxidativa melhorado. os catalisadores de desidrogenação oxidativa compreendendo movnbteo tendo uma consistência melhorada da composição e uma conversão de 25% de etileno a menos do que 420 ºc e uma seletividade para o etileno de mais do que 95% são preparados por tratamento do precursor de catalisador com h2o2 em uma quantidade equivalente a 0,30 a 2,8 ml de h2o2 de uma solução a 30% por grama de precursor de catalisador antes da calcinação. improved oxidative dehydrogenation catalyst. oxidative dehydrogenation catalysts comprising movnbteo having an improved consistency of composition and a 25% conversion of ethylene at less than 420°c and a selectivity for ethylene of more than 95% are prepared by treating the catalyst precursor with h2o2 in an amount equivalent to 0.30 to 2.8 ml of h2o2 of a 30% solution per gram of catalyst precursor prior to calcination.

Catalyst Ta-Nb for the production of 1,3-butadiene

The invention relates to a catalyst that comprises a mesoporous oxide matrix, with said matrix comprising at least one oxide of an element X that is selected from among silicon and titanium, taken by itself or in a mixture, with said catalyst comprising at least the tantalum element and the niobium element, with the tantalum mass representing between 0.1 to 30% by weight of the mass of the mesoporous oxide matrix, the niobium mass representing between 0.02 to 6% by weight of the mass of the mesoporous oxide matrix, the content by mass of the tantalum element being greater than or equal to the content by mass of the niobium element. The invention also relates to the use of this catalyst in a method for the production of 1,3-butadiene from a feedstock that comprises at least ethanol.

Agglomerated odh catalyst

Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, preferably extruded with supports selected from the group consisting of slurries of TiO2, ZrO2 Al2O3, AlO(OH) and mixtures thereof have a lower temperature at which 25% conversion is obtained.

Improved oxidative dehydrogenation catalyst.

Los catalizadores de deshidrogenación oxidativa que comprende MoVNbTeO que tiene consistencia mejorada de composición y una conversión al 25% de etileno a menos de 420°C y una selectividad a etileno por encima de 95% se preparan al tratar el precursor de catalizador con H2O2 en una cantidad equivalente a 0.30-2.8 mL de H2O2 de una solución al 30% por gramo de precursor de catalizador antes de la calcinación.

multi-metal oxide catalyst and method for the production of (meth) acrylic acid by using it

CATALISADOR DE óXIDO MULTI-METáLICO E MéTODO PARA PRODUçãO DE áCIDO (MET) ACRILICO PELO USO DO MESMO. A presente invenção fornece um composto baseado em óxido metálico de Mo-Bi-Nb (desde que Te não esteja incluído); um método para produção de ácido (met)acrílico a partir de pelo menos um reagente selecionado a partir de um grupo consistindo em propileno, propano, isobutileno, álcool t-butílico e metil-t-butil éter, no qual um composto baseado em óxido metálico de Mo-Bi-Nb (desde que Te não esteja incluído) é usado como um catalisador; e um reator usado para produção de ácido (met)acrílico a partir de pelo menos um reagente selecionado a partir de um grupo consistindo em propileno, propano, isobutileno, álcool t-butílico e metil-t-butil éter, no qual um composto baseado em óxido metálico de Mo-Bi-Nb (desde que Te não esteja incluído) é usado como um catalisador. Além disso, a presente invenção fornece um método para produção de ácido (met)acrílico a partir de pelo menos um reagente selecionado a partir de um grupo consistindo em propileno, propano, isobutileno, álcool t-butílico e metil-t-butil éter pelo uso um composto baseado em óxido metálico de Mo-Bi-Nb como um catalisador, sem qualquer processo adicional de conversão de (met)acroleína em ácido (met)acrílico. MULTI-METALLIC OXIDE CATALYST AND METHOD FOR PRODUCTION OF ACRYLIC (MET) ACID BY THE SAME USE. The present invention provides a compound based on metal oxide of Mo-Bi-Nb (as long as Te is not included); a method for producing (meth) acrylic acid from at least one reagent selected from a group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which an oxide-based compound metallic Mo-Bi-Nb (as long as Te is not included) is used as a catalyst; and a reactor used for the production of (meth) acrylic acid from at least one reagent selected from a group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, on which a compound based in ...

Double peroxide treatment of oxidative dehydrogenation catalyst

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H 2 O 2 in an amount equivalent to 0.30-2.8 mL H 2 O 2 of a 30% solution per gram of catalyst precursor prior to calcining and treating the resulting catalyst with the equivalent amount of peroxide after calcining.

Controlled pressure hydrothermal treatment of odh catalyst

Methods for providing bond activation catalysts and related catalysts, systems, and methods

Described herein are catalysts for activation of an R—H bond in a R—H substrate and related catalytic matrices, compositions, methods and systems.

Apparatus for removing catalyst surface substances

An apparatus for efficiently removing the exuded substance and/or the attached substance on the surface of a catalyst (catalyst surface substance) from the catalyst is provided. The apparatus comprising a main body, the apparatus for removing a catalyst surface substance present on a surface of a catalyst from the catalyst by bringing a gas flow into contact with the catalyst housed in the main body, wherein a gas flow length in a flow direction of the gas flow is 55 mm or more, and an average flow velocity of the gas flow is 80 m/s or more and 500 m/s or less in terms of a linear velocity at 15° C. and 1 atm.

Scr catalytic converter

Die vorliegende Erfindung betrifft einen Katalysator, der mindestens ein Oxid des Vanadiums, mindestens ein Oxid des Wolframs, mindestens ein Oxid des Cers, mindestens ein Oxid des Titans und mindestens ein Oxid des Niobiums enthält, sowie ein diesen enthaltendes Abgassystem undund ein Verfahren zur Verminderung von Stickoxiden in Abgasen von mager betriebenen Verbrennungsmotoren. Der Katalysator kann weitere Oxide des Siliziums, des Molybdäns, des Antimons, des Zirkoniums, des Tantals und/oder des Hafniums enthalten. The present invention relates to a catalyst comprising at least one oxide of vanadium, at least one oxide of tungsten, at least one oxide of cerium, at least one oxide of titanium and at least one oxide of niobium, and an exhaust system containing the same, and a method for reducing Nitrogen oxides in exhaust gases of lean-burn internal combustion engines. The catalyst may contain further oxides of silicon, molybdenum, antimony, zirconium, tantalum and / or hafnium.

Oxidative dehydrogenation (odh) of ethane

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor, allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; supplying a coolant to an upstream region of an interior shell space of the reactor in a flow pattern that is counter-current with the flow of the feed gas; and withdrawing the coolant from the upstream region and supplying at least a portion of the coolant withdrawn from the upstream region to the downstream region in a flow pattern that is co-current with the flow of the feed gas.

Synthesis of a movtenb catalyst from low-cost metal oxides

The invention relates to a method for producing a mixed oxide material, comprising the steps of: a) producing a mixture of starting compounds containing molybdenum, vanadium, niobium and tellurium-containing starting compounds as well as two chelating oxoligands, b) hydrothermally treating the mixture of starting compounds at a temperature of 100 °C to 300 °C to obtain a product suspension, c) separating and drying the solid which is contained in the product suspension resulting from step b), d) activating the solid obtained in step c) in inert gas. The invention also relates to a mixed oxide material for the oxidation of ethane, comprising the elements molybdenum, vanadium, niobium and tellurium, having the following stoichiometry: Mo1VaNbbTecOx with 0.27 < a < 0.31; 0.08 < b < 0.12; 0.08 < c < 0.12, which, when using the Cu-Kα radiation, has in the XRD spectrum diffraction reflections h, i, k and l, whose apex points are approximately at the diffraction angles (2•) 26.2° ± 0.5° (h), 27.0° ± 0.5° (i), 7.8° ± 0.5° (k) and 28.0° ± 0.5° (l), which can be produced according to the inventive method.

Alkane oxidative dehydrogenation and/or alkene oxidation

The invention relates to a process of the oxidative dehydrogenation of an alkane containing 2 to 6 carbon atoms and/or the oxidation of an alkene containing 2 to 6 carbon atoms, wherein a gas stream comprising oxygen and the alkane and/or alkene is contacted with a mixed metal oxide catalyst containing molybdenum, vanadium, niobium and optionally tellurium, and wherein the linear velocity of said gas stream is at least 10 cm/sec.

Catalyst for glycerin dehydration, preparation method thereof, and preparation method of acrolein

The present invention relates to a catalyst for glycerin dehydration, a preparation method thereof, and a preparation method of acrolein, and more particularly, to a catalyst for glycerin dehydration which minimizes by-product formation during glycerin dehydration to improve acrolein selectivity and maintains high catalytic activity during reaction.

Coating process of Zero-PGM catalysts and methods thereof

Variations of coating processes of ZPGM catalyst materials for TWC applications are disclosed. The disclosed coating processes for ZPGM materials are enabled in the preparation of ZPGM catalyst samples according to a plurality of catalyst configurations, which may include washcoat and an overcoat layer with or without an impregnation layer, including Cu—Mn spinel and doped Zirconia support oxide, prepared according to variations of disclosed coating processes. Activity measurements under isothermal steady state sweep test condition are considered under lean condition and rich condition close to stoichiometric condition to analyze the influence of disclosed coating processes on TWC performance of ZPGM catalysts. Different coating processes may substantially increase TWC activity, providing improved levels of NO, CO, and HC conversions and cost effective manufacturing solutions.

Method for producing mixed oxide materials containing molybdenum

The invention relates to a method for producing a mixed oxide material containing the elements molybdenum, vanadium, niobium and tellurium, comprising the following steps: a) producing a mixture from starting compounds containing molybdenum, vanadium, niobium and a tellurium-containing starting compound, present in the tellurium in the +4 oxidation state, b) hydrothermal treatment of the mixture from starting compounds at a temperature of between 100°c to 300°C, in order to obtain a product suspension, c) separating off and drying the solid material from the product suspension obtained in step b), d) activating the solid material in inert gas in order to obtain the mixed oxide material. The invention is characterized in that the tellurium-containing starting compound has a particle size D90of less than 100 µm.

Process for producing fluorine-containing olefin

This invention provides a process for producing a fluoroolefin comprising reacting, in a vapor phase, a fluorinating agent and a chlorine-containing alkene or a chlorine-containing alkane in the presence of at least one catalyst selected from the group consisting of chromium oxide containing a Group 5 element and fluorinated chromium oxide containing a Group 5 element. According to the process of the present invention, the target fluoroolefin can be obtained with high starting material conversion and good selectivity.

Odh catalyst formulations

The oxidative dehydrogenation of ethane comprises contacting a mixture of ethane and oxygen in an ODH reactor with an ODH catalyst under conditions that promote oxidation of ethane into ethylene. Conditions within the reactor are controlled by the operator and include, but are not limited to, parameters such as 5 temperature, pressure, and flow rate. Conditions will vary and can be optimized for a specific catalyst, or whether an inert diluent is used in the mixing of the reactants. Disclosed herein is a catalyst consisting of: Mo0-1W0.3-1V0.2-0.4Te0.06-0.10Fe0.0-0.10Nb0.08-0.18Ox where X is determined by the valance of the metals.

Process for making ethylene and acetic acid

A process comprising catalytically converting ethane to ethylene and acetic acid in the presence of oxygen at a temperature of 450° C. or less in the gas phase wherein the catalyst has the empirical formula MoV a Nb b Te c Z d O n .

Method for producing compound

本申请涉及化合物的制造方法。提供在不对反应器造成损伤的情况下边抑制催化剂飞散，边以高收率得到化合物的化合物的制造方法。所述方法具备如下反应工序：使用流化床反应器，在下述内部空间内，在下述催化剂存在下将下述烃供至气相催化氧化反应或气相催化氨氧化反应，制造各自对应的不饱和酸或不饱和腈，流化床反应器具备：内部空间，其中以能够流动的方式收纳有催化剂；第一供给口，其向流化床反应器供给包含烃的原料气体；第二供给口，其向前述流化床反应器供给包含氧的含氧气体；和，排出口，从流化床反应器排出反应生成气体，其中，将第一供给口处原料气体的线速度(m/秒)以相对于催化剂的耐磨耗度(％)满足规定关系的方式进行调整。

Mixture catalyzer

本发明提供混合物催化剂，其是丙烷或异丁烷的气相催化氧化或气相催化氨氧化反应用的催化剂，能够由丙烷或异丁烷以高收率地得到对应的不饱和酸或不饱和腈。所述催化剂是丙烷或异丁烷的气相催化氧化反应或气相催化氨氧化反应用的混合物催化剂，该混合物催化剂以下述式（2）的比例含有用下述组成式（1）表示的复合氧化物和钨化合物，Mo 1 V a Nb b Sb c W d Z e O n （1）（式（1）中，Z为选自由La、Ce、Pr、Yb、Y、Sc、Sr、Ba组成的组中的至少1种以上的元素；a、b、c、d、e、n表示相对于1原子Mo的各元素的原子比，a为0.01≤a≤1、b为0.01≤b≤1、c为0.01≤c≤1、d为0.001≤d≤1、e为0≤e≤1，n表示根据构成金属的化合价确定的数。），0.001＜w＜0.3（2）（式（2）中，w为以相对于复合氧化物中1原子Mo的原子比来表示的钨化合物中的钨的原子比。）。

Exhaust gas treating catalyst and exhaust gas purification apparatus using the same

An exhaust gas treating catalyst further improved in denitrification performance is provided. It is an exhaust gas treating catalyst containing a complex oxide represented by the general formula ABO 3 , where the A-site is composed of a lanthanoid (La) and barium (Ba), and the B-site is composed of iron (Fe), niobium (Nb) and palladium (Pd).

Controlled pressure hydrothermal treatment of odh catalyst

The preparation of an oxidative dehydrogenation catalyst comprising Mo, V, Nb and Te using a hydrothermal step the activity and reproducibility of the catalyst is improved by conduction the hydrothermal step at higher pressures while permitting gaseous products to leave the reactor. In some instances a condenser may be upstream of the pressure relief valve.

System and method for two and three way ZPGM catalyst

Disclosed here are material formulations of use in the conversion of exhaust gases, where the formulations may include Copper (Cu), Cerium (Ce), Tin (Sn), Niobium (Nb), Zirconium (Zr), Calcium (Ca) and combinations thereof.

The manufacturing method of compound

提供在不对反应器造成损伤的情况下，边抑制催化剂的飞散，边能以高收率得到化合物的化合物的制造方法。所述方法具备如下反应工序：使用流化床反应器，在下述内部空间内，在下述催化剂的存在下将下述烃供至气相催化氧化反应或气相催化氨氧化反应，从而制造各自对应的不饱和酸或不饱和腈，流化床反应器具备：内部空间，其中以能够流动的方式收纳有催化剂；第一供给口，其向流化床反应器供给包含烃的原料气体；第二供给口，其向前述流化床反应器供给包含氧的含氧气体；和，排出口，从流化床反应器排出反应生成气体，该反应工序中，将第一供给口处的原料气体的线速度(m/秒)以相对于催化剂的耐磨耗度(％)满足规定关系的方式进行调整。

Double peroxide treatment of oxidative dehydrogenation catalyst

Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining and treating the resulting catalyst with the equivalent amount of peroxide after calcining.

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

The present invention provides a Mo-Bi-Nb based composite metal oxide (with the proviso that Te is not included); a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo-Bi-Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst; and a reactor used for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, in which a Mo-Bi-Nb based composite metal oxide (with the proviso that Te is not included) is used as a catalyst. Further, the present invention provides a method for producing (meth)acrylic acid from at least one reactant selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether by using a Mo-Bi-Nb based composite metal oxide as a catalyst, without any additional process of converting (meth)acrolein into (meth)acrylic acid.

Catalyst for conversion of propylene to product comprising a carboxylic acid moiety

In accordance with the invention, there is provided a novel catalyst composition comprising MoVGaPdNbXY, wherein X comprises La, Te, Ge, Zn, In, or W; and Y comprises Al or Si; wherein Mo, V, Ga, Pd, Nb, La, Te, Ge, Zn, In, W, Al, or Si are optionally present in combination with oxygen; wherein the catalyst does not comprise an additional element that acts as a catalyst in the conversion of a propylene to the product. Also, disclosed is a method for the conversion of a propylene to a carboxylic acid moiety by contacting the propylene with the disclosed catalyst.

Mixed catalyst

Novel glycerol dehydration catalyst and production method therefor

Provided is a novel catalyst that can produce acrolein and acrylic acid in high yields using glycerol as starting material. The disclosed glycerol dehydration catalyst has niobic oxide synthesized by hydrothermal synthesis as the main component.

Oxidative dehydrogenation (ODH) of ethane

Processes and associated reaction systems for the oxidative dehydrogenation of ethane are provided. In particular, a process is provided that comprises supplying a feed gas comprising ethane and oxygen to a multitubular fixed-bed reactor, allowing the ethane and oxygen to react in the presence of an oxidative dehydrogenation catalyst to yield a reactor effluent comprising ethylene; supplying a coolant to an upstream region of an interior shell space of the reactor in a flow pattern that is counter-current with the flow of the feed gas; and withdrawing the coolant from the upstream region and supplying at least a portion of the coolant withdrawn from the upstream region to the downstream region in a flow pattern that is co-current with the flow of the feed gas.

NOx Removal Catalyst using Ceramic Nanotube on Metal Structure with Gaps for Ship and Method for Manufacturing Same

The present invention relates to a denitrification catalyst for ships having excellent productivity and cost-effectiveness as well as excellent catalytic performance, in which a porous titanium or aluminum metal structure including multiple pores which allow exhaust gas to pass through in multiple directions, is prepared not as powder or in a honeycomb shape, but into a three-dimensional metal structure; ceramic (titania or alumina) nanotubes having a large specific surface area are grown on the porous metal structure; and a small amount of an active metal is highly dispersed and deposited as a nano thin film layer or supported on the internal and external surfaces of the ceramic nanotubes. Also, the denitrification catalyst for ships according to the present invention is capable of transforming the shape of the porous metal structure into various forms including sphere, square, and the like, depending on the structure of the denitrification system. Thus, the present invention can be miniaturized and optimized to be conveniently installed within a limited space inside a ship, and is easy to be maintained, repaired, and managed.