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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 54. Отображено 54.
06-04-2017 дата публикации

METHOD FOR PREPARING ETHYLENE GLYCOL BY HYDROLYSING ETHYLENE GLYCOL MONOMETHYL ETHER

Номер: WO2017054317A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Yong, LIU, Hongchao, SHI, Lei, LIU, Zhongmin
Принадлежит:

Provided is a method for preparing ethylene glycol by hydrolysing ethylene glycol monomethyl ether. The method comprises passing fresh raw materials, i.e. ethylene glycol monomethyl ether and water, through a reaction zone loaded with a solid acid catalyst and reacting same; separating a mixture after the reaction via a separation system to obtain the target product, i.e. ethylene glycol, by-products, i.e. methyl alcohol, dimethyl ether and ethylene glycol-based derivatives, and unreacted raw materials, i.e. ethylene glycol monomethyl ether and water; then, entering the target product, i.e. ethylene glycol, into a product collection system, entering the by-products, i.e. methyl alcohol and dimethyl ether, into a by-product collection system, and recycling the unreacted raw material, i.e. ethylene glycol monomethyl ether, and the unreacted raw material, i.e. water, and the by-products, i.e. the ethylene glycol-based derivatives, so as to mix same with fresh raw materials, i.e. ethylene glycol ...

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Номер записи: 1
06-08-2020 дата публикации

METHOD FOR PREPARING KETONE ORGANICS

Номер: WO2020155145A1
Автор: ZHOU, Ziqiao, LIU, Zhongmin, ZHU, Wenliang, LIU, Hongchao, NI, Youming, LIU, Yong
Принадлежит:

Disclosed is a method for preparing ketone organics, comprising passing a raw material gas through a reactor loaded with an acidic molecular sieve catalyst, and reacting same to obtain the ketone organics, wherein the raw material gas comprises reaction materials; the reaction materials are selected from at least one of compounds having a structural formula shown in formula I, wherein R1 is selected from one of C1 - C10 hydrocarbon groups, and R2 is selected from H, and one of C1 - C10 hydrocarbon groups; and in formula I, an ortho-carbon of a carbonyl group contains an α-hydrogen atom. The method for preparing ketone organics provided by the present invention has the advantages of a high reactivity, readily available raw materials, a simple preparation process, etc., compared to traditional elementary/supported-type metal catalysts, and has good industrial application prospects.

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Номер записи: 2
09-04-2021 дата публикации

Misplug-proof low-voltage drawer cabinet

Номер: CN212935354U
Автор: ZHU ZHONGQI, ZHU WENLIANG, 朱中奇, 朱文良
Принадлежит: XUZHOU ZHONGTAI ELECTRIC CO LTD, XUZHOU ZHONGTAI ELECTRIC CO., LTD., 徐州中泰电气有限公司

The utility model discloses an anti-misplug low-voltage drawer cabinet which comprises a cabinet body and a mounting hole, self-locking rollers are arranged on the left side and the right side of the bottom of the cabinet body, a winding frame and a first wire clamping block are fixed to the left end face of a partition plate, a supporting plate is arranged on the upper side of the partition plate, and cabinet doors are rotatably connected to the upper side and the lower side of the right side of the cabinet body. A shutter is arranged on the cabinet door, a side plate is fixed to the left side of the cabinet body through a second bolt, and a threading opening is formed in the bottom of the side plate. According to the misplug-proof low-voltage drawer cabinet, after the equipment and the controller are placed, the equipment and the corresponding controller can be electrically connected together, a connecting line on the equipment is pulled upwards, the redundant connecting line is wound ...

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Номер записи: 3
21-11-2019 дата публикации

CATALYST FOR SYNTHESISING P-XYLENE, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

Номер: WO2019218489A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

A catalyst for synthesising p-xylene, a preparation method therefor, and an application thereof. The catalyst comprises zinc-aluminium spinel oxide and a modified acidic molecular sieve having a mass ratio of 1:5-5:1, the zinc-aluminium spinel optionally containing at least one other element from amongst chromium, zirconium, copper, manganese, indium, gallium, and silicon, and the modified acidic molecular sieve being selected from a modified acidic ZSM-5 molecular sieve, a modified acidic ZSM-11 molecular sieve, and a mixture of same. When used in a method for using carbon dioxide hydrogenation to prepare p-xylene and co-produce ethylene and propylene, the catalyst can make the carbon dioxide hydrogenation highly selectively generate p-xylene and co-produce ethylene and propylene, and the catalyst has good stability. The carbon dioxide hydrogenation generates p-xylene and co-produces ethylene and propylene, reducing the problem of the large energy consumption caused by separate production ...

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Номер записи: 4
26-01-2017 дата публикации

METHYL ACETATE PREPARATION METHOD

Номер: WO2017012246A1
Автор: LIU, Hongchao, ZHU, Wenliang, LIU, Yong, NI, Youming, LIU, Zhongmin, WANG, Linying, TIAN, Peng
Принадлежит:

The present invention provides a methyl acetate preparation method. The method comprises: performing carbonylation of dimethyl ether and a feed gas comprising carbonic oxide and hydrogen on a catalysator of an acid EMT-structure zeolite molecular sieve, to obtain methyl acetate. The present invention provides a new method for producing methyl acetate. The method is performed with the existence of an acid EMT zeolite molecular sieve serving as a catalysator, reaction activity is high, stability is obviously improved, and an industrial production requirement can be met.

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Номер записи: 5
31-05-2018 дата публикации

METHOD FOR PREPARING ACRYLIC ACID AND METHYL ACRYLATE

Номер: WO2018094691A1
Автор: SHI, Lei, LIU, Zongmin, NI, Youming, ZHU, Wenliang, LIU, Yong, LU, Hongchao
Принадлежит:

The present invention provides a method for preparing acrylic acid and methyl acrylate. The method comprises: raw gas containing dimethoxymethane and carbon monoxide by means of a solid acid catalyst, at a reaction temperature of 180-400ºC, and under a reaction pressure of 0.1-15.0 MPa, with the feeding space velocity of dimethoxymethane being 0.05-10.0h-1 and the content of dimethoxymethane in percentage by volume being 0.1-95％, generates acrylic acid and methyl acrylate at a high conversion rate and selectivity.

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Номер записи: 6
31-05-2018 дата публикации

METHOD FOR PREPARING LOW-GRADE UNSATURATED FATTY ACID ESTER

Номер: WO2018094687A1
Автор: MA, Zhanling, ZHU, Wenliang, MA, Xiangang, LIU, Hongchao, LIU, Yong, NI, Youming, LIU, Shiping, CHEN, Qiwei, LIU, Zhongmin
Принадлежит:

Provided is a method for preparing a low-grade unsaturated fatty acid ester. The method comprises: dimethoxymethane (DMM) and low-grade fatty acid or ester with a molecular formula being R1-CH2COOR2 undergo an aldol condensation reaction on an acid molecular sieve catalyst in an inert atmosphere to obtain a low-grade unsaturated fatty acid or ester (CH2＝C(R1)-COO-R2), where R1 and R2 independent represent H- and C1-C4 saturated alkyl group respectively. The provided method for preparing a low-grade unsaturated fatty acid ester features high catalyst reactivity, active ingredients that are not easy to lose, and a simple preparation process, and has a good industrial application prospect.

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Номер записи: 7
23-05-2019 дата публикации

METHOD FOR DIRECTLY PRODUCING AROMATIC HYDROCARBONS FROM SYNGAS AND FOR PRODUCING LOW CARBON OLEFINS IN PARALLEL

Номер: WO2019095405A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, CHEN, Zhiyang, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

Disclosed by the present invention is a method for preparing aromatic hydrocarbons from syngas and for producing low-carbon olefins in parallel, the method comprising: contacting a raw material comprising syngas and a catalyst in a reaction zone under reaction conditions sufficient to convert at least a part of the raw material so as to obtain a reaction effluent comprising aromatic hydrocarbons, low-carbon olefins, and unconverted raw material; then isolating the aromatic hydrocarbons, the low-carbon olefins and the unconverted raw material from the reaction effluent; the catalyst comprises a high dispersion metal oxide material having an inert carrier limitation region, an acidic molecular sieve, and at least one optionally selected from among graphite powder and a dispersing agent; in the high dispersion metal oxide material having an inert carrier limitation region, the inert carrier is at least one from among silicon oxide and aluminum oxide, and the content of the metal oxide calculated ...

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Номер записи: 8
21-11-2019 дата публикации

CATALYST FOR AROMATIC HYDROCARBON SYNTHESIS, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

Номер: WO2019218488A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

Disclosed are a catalyst for aromatic hydrocarbon synthesis, a preparation method therefor, and an application thereof. The catalyst comprises a zinc-aluminum spinel oxide and an acidic molecular sieve having a mass ratio of 1:5-5:1, wherein the zinc-aluminum spinel oxide optionally contains at least one other element selected from chromium, zirconium, copper, manganese, indium, gallium, and silicon, and the acidic molecular sieve is selected from an acidic ZSM-5 molecular sieve, an acidic ZSM-11 molecular sieve, and the mixture thereof. When the catalyst is applied in a method for directly preparing an aromatic hydrocarbon by means of carbon dioxide hydrogenation, the catalyst can enable the highly selective generation of the aromatic hydrocarbon by means of carbon dioxide hydrogenation, and has good stability. The method of the present invention implements the one-step generation of an aromatic hydrocarbon by means of carbon dioxide hydrogenation, thereby reducing great energy consumption ...

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Номер записи: 9
23-05-2019 дата публикации

METHOD FOR DIRECTLY PRODUCING AROMATIC HYDROCARBON FROM SYNTHESIS GAS

Номер: WO2019095986A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, CHEN, Zhiyang, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

A method for directly producing an aromatic hydrocarbon from synthesis gas. The method comprises: a) enabling a feed stream comprising synthesis gas to contact a catalyst in a reaction zone under a reaction condition sufficient to convert at least a portion of the raw materials to obtain a reaction effluent; b) separating the reaction effluent to obtain at least a recycle stream comprising gas hydrocarbons having 1-4 carbon atoms and unconverted synthesis gas as well as a liquid stream comprising hydrocarbons having 5 or more carbon atoms; c) returning the recycle stream to the reaction zone; and d) separating the aromatic hydrocarbon product from the liquid stream, wherein the catalyst comprises an inert carrier-confinement high-dispersion metal oxide material, acidic molecular sieve, and at least one of graphite powder and dispersing agent optionally.

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Номер записи: 10
03-07-2014 дата публикации

PROCESS FOR PREPARING METHYL ACETATE

Номер: WO2014101898A1
Автор: ZHU, Wenliang, LIU, Hongchao, LIU, Yong, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided in the present invention is a process for preparing methyl acetate through carbonylation of dimethyl ether, comprising: passing a feed gas containing dimethyl ether, carbon monoxide, and optional hydrogen gas through a reactor loaded with a mordenite molecular sieve catalyst, and preparing methyl acetate by reacting same at a reaction temperature of 19 to 320°C, a reaction pressure of 0.5 to 20.0 Mpa, and a gas volume space velocity of 500 to 5000 h-1; wherein the mordenite molecular sieve catalyst is a hydrogen-type mordenite molecular sieve catalyst with an adsorbed organic amine, the molar ratio of the dimethyl ether to carbon monoxide in the feed gas is DME/CO = 1/1 to 1/15, the molar ratio of the hydrogen gas to carbon monoxide is H2/CO = 0 to 10/1, and the dimethyl ether in the feed gas is charged into the reactor by means of feeding in stages. The present invention is characterized in that: through treatment by organic amine adsorption, the temperature distribution of catalyst ...

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Номер записи: 11
26-05-2016 дата публикации

METHOD FOR PREPARING METHYL FORMATE AND COPRODUCING DIMETHYL ETHER

Номер: WO2016077968A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Yong, LIU, Hongchao, LIU, Zhongmin, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

A method for preparing methyl formate and coproducing dimethyl ether. A raw material containing formaldehyde and methanol is introduced into a first reaction area to come into contact with catalyst A and be separated therefrom, constituent I thus produced is introduced into a second reaction area to come into contact with catalyst B and then be separated therefrom, thus producing methyl formate, dimethyl ether, and constituent II. At least 1% of the dimethyl ether serves as a product while the remainder serves as circulating dimethyl ether to be returned to the first reaction area. Constituent II is returned to the second reaction area. The ratio of formaldehyde to methanol in the raw material in terms of the number of moles of carbon atoms contained in each constituent is formaldehyde : methanol = 1 : 0.05-4; the weight hourly space velocity of formaldehyde in the raw material is 0.01-15.0 h-1; the temperature in the first reaction area is 50-100 degrees Celsius; the temperature in the ...

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Номер записи: 12
03-07-2014 дата публикации

METHOD FOR PREPARING METHYL ACETATE BY DIMETHYL ETHER CARBONYLATION

Номер: WO2014101901A1
Автор: ZHU, Wenliang, LIU, Hongchao, LIU, Yong, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided is a method for preparing methyl acetate by dimethyl ether carbonylation, comprising passing a feed gas including dimethyl ether, carbon monoxide and optional hydrogen through a reactor filled with a mordenite and/or ferrierite molecular sieve based catalyst and reacting at a reaction temperature of 190-320°C, a reaction pressure of 0.5-20.0 MPa and a gas space velocity of 500-5000 h-1 so as to prepare methyl acetate, wherein the molar ratio of dimethyl ether to carbon monoxide is DME/CO=1/1-1/15, the molar ratio of hydrogen to carbon monoxide is H2/CO=0-10/1, and the feed gas is distributed into each catalyst bed layer in a segmental feeding manner. A feed gas including dimethyl ether and carbon monoxide is uniformly distributed into each catalyst bed layer via a gas distributor, in a segmental feeding manner, which can remarkably improve the conversion rate of dimethyl ether, effectively control or adjust the temperature distribution of a catalyst bed layer, avoid the appearance ...

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Номер записи: 13
02-07-2015 дата публикации

METHOD FOR PREPARING POLYOXYMETHYLENE DIMETHYL ETHER CARBONYL COMPOUND AND METHYL METHOXYACETATE

Номер: WO2015095997A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Hongchao, LIU, Yong, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

A method for preparing a polyoxymethylene dimethyl ether carbonyl compound and/or methyl methoxyacetate serving as an intermediate for producing ethylene glycol, comprising: passing a raw material polyoxymethylene dimethyl ether or dimethoxymethane together with carbon monoxide and hydrogen gas through a reactor carrying an acidic resin catalyst, and preparing corresponding products by reacting in appropriate reaction conditions without adding any other solvent, where the reaction process is a gas-liquid-solid three-phase reaction. In the method, the conversion rate of the raw material polyoxymethylene dimethyl ether or dimethoxymethane is high, the selectivity of the products is high, catalyst service life is extended, the need for additional solvent is obviated, the reaction conditions are relatively mild, continuous production is allowed, and the potential for industrial application is provided. Also, the products acquired can either be hydrogenated then hydrolyzed or be hydrolyzed then ...

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Номер записи: 14
07-04-2023 дата публикации

Battery replacing mechanism device of new energy battery replacing station

Номер: CN115923580A
Автор: ZHU WENLIANG, ZHANG SIMENG, XIE YONGBAO, JIANG XIAOSEN, YE XIUYUN, YU LEI, ZHANG SHEN
Принадлежит:

The invention discloses a new energy battery swap station battery swap mechanism device which comprises a lifting mechanism, a power roller assembly and a battery guiding device, the lifting mechanism drives the power roller assembly to move up and down in the vertical direction, the power roller assembly bears a battery, and the battery guiding device guides the power roller assembly to move up and down in the vertical direction. The power roller assembly rolls and drives a battery to move on the power roller assembly in the first direction. The battery guiding device is arranged on the power roller assembly, and the battery guiding device is used for guiding the position of the battery on the power roller assembly. According to the invention, the vehicle can directly drive into a specified position, the battery replacing mechanism can directly replace the battery on the ground, the layout is compact, and the efficiency is high.

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Номер записи: 15
03-07-2014 дата публикации

METHOD FOR PREPARING ETHANOL BY HYDROGENATION OF LOW-CARBON ESTER

Номер: WO2014101900A3
Автор: ZHU, Wenliang, LIU, Hongchao, LIU, Yong, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided in the present invention is a method for preparing ethanol by hydrogenation of a low-carbon ester, comprising passing a raw material gas containing a low-carbon ester and hydrogen gas through a gas distributor in the middle of a reactor to uniformly distribute the same into a catalyst bed of a copper-based catalyst, and performing hydrogenation to prepare ethanol. The catalyst bed is disposed between the gas distributor and the rector. The present method can effectively control the temperature distribution of the catalyst bed, and significantly improve the conversion rate of low-carbon ester and the selectivity of the target product.

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Номер записи: 16
23-05-2019 дата публикации

CATALYST FOR SYNTHESIS OF AROMATIC HYDROCARBONS AND PREPARATION METHOD THEREFOR

Номер: WO2019095985A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, CHEN, Zhiyang, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

A catalyst for synthesis of aromatic hydrocarbons, the catalyst comprising a high-dispersion metal oxide material confined by an inert carrier, an acidic molecular sieve, and optionally at least one of a graphite powder and a dispersing agent; in the high-dispersion metal oxide material confined by an inert carrier, the inert carrier is at least one of silicon oxide and aluminum oxide, and the content of the metal oxide, calculated as metal, is less than or equal to 10 mass percent; and the acidic molecular sieve is selected from a modified acidic ZSM-5 molecular sieve, a modified acidic ZSM-11 molecular sieve, and the mixture thereof. When used in a process for direct preparation of paraxylene by reaction of syngas with toluene, the catalyst has a long lifetime, high selectivity for xylene, and can be recycled and reused.

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Номер записи: 17
06-08-2020 дата публикации

METHOD FOR PRODUCING METHYL ACETATE BY MEANS OF CARBONYLATION OF DIMETHYL ETHER

Номер: WO2020155143A1
Автор: LIU, Hongchao, ZHU, Wenliang, LIU, Zhongmin, LIU, Shiping, MA, Xiangang, LIU, Yong, NI, Youming
Принадлежит:

Disclosed by the present application is a method for producing methyl acetate by means of the carbonylation of dimethyl ether. The method comprises: passing dimethyl ether and a feed gas comprising carbon monoxide through a reactor loaded with a solid acid catalyst for reaction so as to produce methyl acetate, the molar ratio of carbon monoxide to dimethyl ether being 0.05:1-0.5:1. The described method has the advantages of a low molar ratio of carbon monoxide to dimethyl ether, a high conversion rate of carbon monoxide, a small gas circulation amount, low operation costs and so on.

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Номер записи: 18
03-05-2018 дата публикации

CATALYST FOR SYNTHESIZING AROMATIC HYDROCARBONS AND PREPARATION METHOD THEREFOR

Номер: WO2018076909A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, CHEN, Zhiyang, LIU, Yong, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

A catalyst for synthesizing aromatic hydrocarbons, a preparation method therefor, and a method for synthesizing aromatic hydrocarbons by using the catalyst. The catalyst comprises acidic molecular sieve particles and zinc-aluminum composite particles. The catalyst has relatively high selectivity to aromatic hydrocarbons, particularly BTX, stable performance, and a long single-pass life.

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Номер записи: 19
05-07-2012 дата публикации

PROCESS FOR PREPARING ALKENE BY DEHYDROGENATION OF LOW CARBON ALKANE

Номер: WO2012088859A1
Автор: LI, Lina, LIU, Zhongmin, ZHU, Wenliang, LIU, Hongchao, LIU, Yong, MENG, Shuanghe, LIU, Shiping
Принадлежит:

Disclosed is a process for preparing an alkene by dehydrogenation of low carbon alkane, wherein hydrogen is consumed by reacting with carbon monoxide, subsequently the reaction equilibrium is broken and directs to dehydrogenation, so that both the equilibrium conversion of the hydrocarbon and the selectivity of the alkene are improved.

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Номер записи: 20
26-01-2017 дата публикации

METHOD FOR PREPARING ACETAL CARBONYL COMPOUND

Номер: WO2017012245A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Yong, LIU, Hongchao, LIU, Zhongmin, YANG, Miao, TIAN, Peng
Принадлежит:

The present invention proposes a method for preparing an acetal carbonyl compound, which is used as an intermediate for producing ethylene glycol, by an acetal carbonylation reaction. The method comprises subjecting a raw material acetal and a feed gas carbon monoxide to a carbonylation reaction by passing same through a reactor loaded with a catalyst of an acidic small-pore silicoaluminophosphate molecular sieve, so as to obtain the product acetal carbonyl compound. In the inventive method, a conversion rate of the raw material acetal is high, a selectivity of the acetal carbonyl compound is high, the catalyst life is long, an additional solvent is not needed, the reaction conditions are relatively mild, and continuous production can be achieved. The method has an industrial application potential. Moreover, the resulting acetal carbonyl compound product is capable of producing ethylene glycol by hydrogenating and then hydrolyzing.

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Номер записи: 21
03-07-2014 дата публикации

PROCESS FOR PREPARING METHYL ACETATE

Номер: WO2014101897A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Hongchao, LIU, Yong, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided in the present invention is a process for preparing methyl acetate, comprising passing a feed gas containing an organic amine, dimethyl ether, carbon monoxide, and optional hydrogen gas through a reactor loaded with a hydrogen-type mordenite molecular sieve catalyst to prepare methyl acetate; wherein the hydrogen-type mordenite molecular sieve catalyst is a hydrogen-type mordenite molecular sieve catalyst with the adsorbed organic amine. In the process of the present invention, using the hydrogen-type mordenite molecular sieve with the adsorbed organic amine as the catalyst and adding the organic amine component into the feed gas can steadily compensate the desorption of the organic amine during the reaction process, improve the stability of the catalyst and prolong the service life of the catalyst.

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Номер записи: 22
02-03-2017 дата публикации

IRON-BASED CATALYST PREPARED BY USING COPRECIPITATION-MELTING METHOD, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

Номер: WO2017031635A1
Автор: CHEN, Yanping, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, LIU, Hongchao, NI, Youming
Принадлежит:

Disclosed is an iron-based catalyst prepared by using a coprecipitation-melting method. The catalyst comprises the iron element Fe, a metallic element A, and a metallic element B. The metallic element A is selected from at least one of aluminium and/or a transition metal; and the metallic element B is selected from at least one of an alkali metal and/or an alkaline earth metal. Each metal element exists in a form of a single metal and/or a metallic oxide. Accounting by using that the total amount of the metal elements comprised in the catalyst is 100 wt%, the metal element Fe in the catalyst accounts for 50 wt% to 99 wt%, the metal element A in the catalyst accounts for 0.1 wt% to 50 wt%, and the metal element B in the catalyst accounts for 0.01 wt% to 40 wt%. In the one-stage preparation of light olefins from syngas, the catalyst has features of high activity, high mechanical stability, and low carbon deposit in reaction, thereby preventing the catalyst from pulverization, and presenting ...

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Номер записи: 23
06-04-2017 дата публикации

METHOD FOR DIRECTLY PREPARING GLYCOL DIMETHYL ETHER AND CO-PRODUCING ETHYLENE GLYCOL FROM ETHYLENE GLYCOL MONOMETHYL ETHER

Номер: WO2017054321A1
Автор: SHI, Lei, NI, Youming, ZHU, Wenliang, LIU, Yong, LIU, Hongchao, LIU, Zhongmin
Принадлежит:

Provided is a method for directly preparing glycol dimethyl ether and co-producing ethylene glycol from ethylene glycol monomethyl ether. More specifically, the method comprises reacting the raw material of ethylene glycol monomethyl ether with optionally an inert gas as a carrier gas in a reactor loaded with a solid acid catalyst, under conditions of a reaction temperature of 40-150ºC and a reaction pressure of 0.1-15.0 MPa, to produce glycol dimethyl ether and ethylene glycol. The mass space velocity of the raw material of ethylene glycol monomethyl ether is 0.05-5.0h-1, the volume concentration of the raw material of ethylene glycol monomethyl ether is 1-100%, and the volume concentration of the carrier gas is 0-99%. In the method of the present invention, with a solid acid as a catalyst and ethylene glycol monomethyl ether as a raw material, under a low temperature condition, glycol dimethyl ether and ethylene glycol are prepared directly with high selectivity; moreover, there is substantially ...

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Номер записи: 24
03-10-2019 дата публикации

COMPOSITE CATALYST, PREPARATION METHOD THEREFOR, AND METHOD FOR PREPARING ETHYLENE

Номер: WO2019183841A1
Автор: LIU, Shiping, ZHU, Wenliang, LIU, Zhongmin, NI, Youming, LIU, Hongchao, LIU, Yong, MA, Xiangang
Принадлежит:

A composite catalyst, a preparation method therefor, and a method for preparing ethylene. The composite catalyst is formed from a combination of a CO hydrogenation catalyst and a modified H-MOR molecular sieve; and the composite catalyst is used for the carbonylation and hydrogenation of methanol/dimethyl ether to form ethylene, wherein the selectivity of the ethylene reaches 86%.

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Номер записи: 25
02-07-2015 дата публикации

METHOD FOR PREPARING POLYOXYMETHYLENE DIMETHYL ETHER CARBONYL COMPOUND AND METHYL METHOXYACETATE

Номер: WO2015095999A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Yong, LIU, Hongchao, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided is a method for preparing a polyoxymethylene dimethyl ether carbonyl compound and/or methyl methoxyacetate serving as an intermediate for producing ethylene glycol, comprising: passing a raw material polyoxymethylene dimethyl ether or dimethoxymethane together with carbon monoxide and hydrogen gas through a reactor carrying a delumination-modified acidic zeolite catalyst, and preparing corresponding products by reacting in appropriate reaction conditions without adding any other solvent, where the reaction process is a gas-liquid-solid three-phase reaction. In the method of the present invention, the conversion rate of the raw material polyoxymethylene dimethyl ether or dimethoxymethane is high, the selectivity of the products is high, catalyst service life is extended, the need for additional solvent is obviated, the reaction conditions are relatively mild, continuous production is allowed, and the potential for industrial application is provided. Also, the products acquired can ...

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Номер записи: 26
02-07-2015 дата публикации

METHOD FOR PREPARING POLYOXYMETHYLENE DIMETHYL ETHER CARBONYL COMPOUND AND METHOXYACETIC ACID METHYL ESTER

Номер: WO2015095998A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Yong, LIU, Hongchao, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU,, Shiping, ZHOU, Hui
Принадлежит:

The present invention provides a method for preparing polyoxymethylene dimethyl ether and/or methoxyacetic acid methyl ester, an intermediate of ethylene glycol. The method comprises: enabling raw materials polyoxymethylene dimethyl ether or methylal, carbon monoxide and oxygen to pass through a reactor loaded with an acid molecular sieve catalyst on which desilication modification is performed; and preparing corresponding products under the condition without adding another solvent, the reaction process being a three-phase reaction of gas, liquid and solid. In the present invention, the transformation rate of the raw material polyoxymethylene dimethyl ether or methylal is high, the selectivity of the products are high, the service life of the catalyst is high, no extra solvent is required, reaction conditions are moderate, continuous production can be carried out, and the method has the potential of industrial application. The products can be hydrogenated and then are hydrolyzed, or can ...

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Номер записи: 27
03-07-2014 дата публикации

METHOD FOR PREPARING ETHANOL BY HYDROGENATION OF LOW-CARBON ESTER

Номер: WO2014101899A3
Автор: ZHU, Wenliang, LIU, Yong, LIU, Hongchao, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided in the present invention is a method for preparing ethanol by hydrogenation of a low-carbon ester, comprising passing a raw material gas containing a low-carbon ester and hydrogen gas through a reactor filled with a copper-based catalyst, and performing hydrogenation at a reaction temperature of 200-320°C, a reaction pressure of 0.5-20.0 Mpa, and a volume space velocity of 1000-40000 h-1 to prepare ethanol, wherein the copper-based catalyst is loaded in stages, and the low-carbon ester in the raw material is fed-in in stages, with the molar ratio of the low-carbon ester to the hydrogen gas in the raw material gas being 1/2-1/100. The low-carbon ester raw material enters stage-by-stage the catalyst bed itself filled stage-by-stage, enabling effective control or adjustment of the temperature distribution of the catalyst bed and avoiding the occurrence of hot spots, thereby reducing side reactions, improving the selectivity of the target product and greatly extending the lifetime ...

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Номер записи: 28
03-05-2018 дата публикации

METHOD FOR PREPARING AROMATIC HYDROCARBONS

Номер: WO2018076910A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, CHEN, Zhiyang, LIU, Yong, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

Disclosed is a method for preparing aromatic hydrocarbons, particularly relating to preparing the aromatic hydrocarbons from methanol and carbon monoxide under reaction conditions by using a reactor loaded with an acidic ZSM-5 molecular sieve catalyst containing no metal additive. Compared with the prior art, the method provided by the present invention can improve and stabilize the selectivity to aromatic hydrocarbons, particularly BTX, by adding the carbon monoxide in methanol aromatization, and also prolongs the single-pass life of the catalyst. The performance of an inactivated catalyst is not significantly degraded after repeated regenerations. Furthermore, the catalyst preparation process omits the step of adding a metal additive, so that not only the process is simplified, but also costs are greatly reduced, and environmental protection is facilitated.

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Номер записи: 29
04-04-2019 дата публикации

METHOD FOR DIRECTLY PRODUCING METHYL ACETATE AND/OR ACETIC ACID FROM SYNGAS

Номер: WO2019061358A1
Автор: LIU, Hongchao, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, LIU, Shiping, WEN, Fuli, NI, Youming, MA, Xiangang
Принадлежит:

A method for directly producing methyl acetate and/or acetic acid from syngas, the reaction process being completed in at least two reaction zones, the method comprising: causing a raw material containing syngas to enter a first reaction zone to contact and react with a metal catalyst; causing an obtained out-flowing substance to enter a second reaction zone directly or after the addition of carbon monoxide so as to contact and react with a solid acid catalyst; separating the obtained out-flowing substance to obtain a product of methyl acetate and/or acetic acid, and optionally returning a residual part to enter the first reaction zone and/or the second reaction zone for cyclic reaction. The present application provides a novel method for directly converting syngas into methyl acetate and/or acetic acid, the method having a simple processing procedure and high product selectivity. According to the method, the product selectivity of the product of methyl acetate or acetic acid is greater ...

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Номер записи: 30
30-06-2016 дата публикации

METHOD FOR PREPARING DOUBLE-SEALED-END GLYCOL ETHER

Номер: WO2016101104A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Hongchao, LIU, Yong, LIU, Zhongmin, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Disclosed is a method for preparing a double end capped glycol ether, the method comprising: introducing into a reactor a raw material comprising a glycol monoether and a monohydric alcohol ether, and enabling the raw material to contact and react with an acidic molecular sieve catalyst to generate a double end capped glycol ether, a reaction temperature being 50-300ºC, a reaction pressure being 0.1-15 MPa, a WHSV of the glycol monoether in the raw material being 0.01-15.0 h-1, and a mole ratio of the monohydric alcohol ether to the glycol monoether in the raw material being 1-100:1. The method of the present invention enables a long single-pass lifespan of the catalyst and repeated regeneration, has a high yield and selectivity of a target product, low energy consumption during separation of the product, a high economic value of a by-product, and is flexible in production scale and application.

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Номер записи: 31
02-07-2015 дата публикации

METHOD FOR PREPARING POLYOXYMETHYLENE DIMETHYL ETHER CARBONYL COMPOUND AND METHYL METHOXYACETATE

Номер: WO2015096009A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Hongchao, LIU, Yong, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided is a method for preparing a polyoxymethylene dimethyl ether carbonyl compound and/or methyl methoxyacetate serving as an intermediate for producing ethylene glycol, comprising: passing a raw material polyoxymethylene dimethyl ether or dimethoxymethane together with carbon monoxide and hydrogen gas through a reactor carrying an acidic zeolite catalyst, and preparing corresponding products by reacting in appropriate reaction conditions without adding any other solvent, where the reaction process is a gas-liquid-solid three-phase reaction. In the method of the present invention, the conversion rate of the raw material polyoxymethylene dimethyl ether or dimethoxymethane is high, the selectivity of the products is high, catalyst service life is extended, the need for additional solvent is obviated, the reaction conditions are relatively mild, continuous production is allowed, and the potential for industrial application is provided. Also, the products acquired can either be hydrogenated ...

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Номер записи: 32
16-03-2017 дата публикации

METHOD FOR PREPARING ACETIC ACID BY CARBONYLATION OF METHANOL

Номер: WO2017041373A1
Автор: NI, Youming, ZHU, Wenliang, SHI, Lei, LIU, Hongchao, LIU, Yong, LIU, Zhongmin
Принадлежит:

Provided is a method for preparing acetic acid by a carbonylation reaction of methanol, comprising passing the raw materials of methanol, carbon monoxide and water through a reaction zone loaded with acidic molecular sieve adsorbed by an organic amine as a catalyst and reacting same under certain conditions to prepare acetic acid. The method of the present invention has a high acetic acid selectivity and a good catalyst stability. The catalyst in the method of the present invention does not contain a rhodium or iridium noble metal, does not need an iodine-containing auxiliary, and does not produce a strong corrosive hydroiodic acid and the like.

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Номер записи: 33
23-05-2019 дата публикации

METHOD FOR PREPARING PARAXYLENE DIRECTLY FROM SYNTHESIS GAS AND TOLUENE

Номер: WO2019095987A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, CHEN, Zhiyang, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

Disclosed is a method for preparing paraxylene directly from a synthesis gas and toluene. The method comprises: allowing a raw material comprising a synthesis gas and toluene to come into contact with a catalyst in a reaction area in reaction conditions sufficient for converting at least a portion of the raw material so as to produce a reaction effluent comprising paraxylene; separating paraxylene from the reaction effluent, where the catalyst comprises an inert carrier-confined highly dispersed metal oxide material, an acidic zeolite, and optionally at least one of graphite powder and a dispersant, and in the inert carrier-confined highly dispersed metal oxide material, the inert carrier is at least one of silicon oxide and aluminum oxide, the content of the metal oxide in terms of the metal is less than or equal to 10 mass%, calculated on the basis of the weight of the inert carrier-confined highly dispersed metal oxide material, and, the acidic zeolite is selected from a modified acidic ...

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Номер записи: 34
03-07-2014 дата публикации

METHOD FOR PREPARING ETHANOL BY HYDROGENATION OF LOW-CARBON ESTER

Номер: WO2014101900A2
Автор: ZHU, Wenliang, LIU, Hongchao, LIU, Yong, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided in the present invention is a method for preparing ethanol by hydrogenation of a low-carbon ester, comprising passing a raw material gas containing a low-carbon ester and hydrogen gas through a gas distributor in the middle of a reactor to uniformly distribute the same into a catalyst bed of a copper-based catalyst, and performing hydrogenation at a reaction temperature of 200-320°C, a reaction pressure of 0.5-20.0 Mpa, and a volume space velocity of 1000-40000 h-1 to prepare ethanol, wherein the molar ratio of the low-carbon ester to the hydrogen gas is 1/2-1/100. The low-carbon ester raw material is uniformly distributed into the whole catalyst bed through a gas distributor in the middle of a rector, which can significantly increase the conversion of the low-carbon ester, effectively control the temperature distribution of the catalyst bed, significantly improve the conversion and selectivity of the target product and extend the lifetime of the catalyst.

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Номер записи: 35
26-01-2017 дата публикации

LOWER FATTY CARBOXYLIC ACID ALKYL ESTER PRODUCTION METHOD

Номер: WO2017012244A1
Автор: LIU, Hongchao, ZHU, Wenliang, NI, Youming, LIU, Yong, LIU, Zhongmin, WANG, Linying, TIAN, Peng
Принадлежит:

The present invention provides a lower fatty carboxylic acid alkyl ester production method. The method comprises: performing carbonylation of alkyl ether (R1-O-R2) and a feed gas comprising carbonic oxide (CO) on a catalysator of an acid EMT zeolite molecular sieve, to obtain fatty acid alkyl ester (R1-COO-R2), R1 and R2 independently indicating C1-C4 alkyl groups respectively. The present invention provides a new method for producing lower fatty acid alkyl ester. The method is performed with the existence of an acid EMT zeolite molecular sieve serving as a catalysator, reaction activity is high, stability is obviously improved, and an industrial production requirement can be met.

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Номер записи: 36
16-04-2020 дата публикации

METHOD FOR PREPARING LOW-CARBON OLEFINS FROM SYNTHESIS GAS

Номер: WO2020073598A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong
Принадлежит:

Disclosed in the present application is a method for preparing low-carbon olefins from synthesis gas, comprising: introducing feed gas containing synthesis gas into a reaction zone to first contact a catalyst bed containing a catalyst I and then contact a catalyst bed containing a catalyst II, so as to prepare low-carbon olefins, wherein the catalyst I is selected from at least one of catalysts for preparing dimethyl ethers from the synthesis gas, and the catalyst II is selected from at least one of catalysts for preparing low-carbon olefins from the dimethyl ethers. The double-layer catalyst used in the present application enables the synthesis gas to generate low-carbon olefins with high selectivity, and the catalyst has good stability. The double-layer catalyst is more favorable for chemical heat removal and regeneration of molecular sieve components. The double-layer catalyst has lower carbon dioxide selectivity, and is thus beneficial to reduce carbon emission.

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Номер записи: 37
25-06-2015 дата публикации

METHOD FOR USE IN PRODUCTION OF METHANOL AND COPRODUCTION OF C2-C4 ALCOHOLS

Номер: WO2015089703A1
Автор: LIU, Yong, ZHU, Wenliang, LIU, Hongchao, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

The present invention relates to a method for production of methanol and coproduction of C2-C4 alcohols with a low-carbon ester and a synthesized gas cofeed as raw materials. A raw material gas containing a low-carbon ester and a synthesized gas is passed through a reactor fitted with a catalyst, and, multiple classes of alcohols are produced under the conditions of a reaction temperature of 150-350 °C, a reaction pressure of 0.1-20.0 MPa, a reaction volume space velocity of 100-40000 mlg-1h-1, and a low-carbon mass space velocity of 0.01-3.0h-1, where the active components of the catalyst are copper and optionally zinc and/or aluminum. The method of the present invention synthesizes methanol on a catalyst of one reactor and, at the same time, coproduces a certain volume of C2-C4 alcohols under the condition of using the low-carbon ester and the synthesized gas cofeed, where the ratio between product alcohols is adjustable.

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Номер записи: 38
04-04-2019 дата публикации

METHOD FOR DIRECTLY PRODUCING ETHANOL FROM SYNGAS

Номер: WO2019061342A1
Автор: LIU, Hongchao, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, LIU, Shiping, WEN, Fuli, NI, Youming, MA, Xiangang
Принадлежит:

Disclosed herein is a method for directly producing ethanol from syngas, the reaction process being completed in three reaction zones, and the method comprising: causing syngas and dimethyl ether to enter a first reaction zone to contact and react with a solid acid catalyst; causing an out-flowing substance from the first reaction zone to enter a second reaction zone to contact and react with a metal catalyst; separating the out-flowing substance from the second reaction zone to obtain a product of ethanol and a by-product of methanol; causing the by-product of methanol to enter a third reaction zone to carry out a dehydration reaction so as to obtain dimethyl ether, and causing the obtained dimethyl ether to enter the first reaction zone for cyclic reaction. The present invention provides a novel method for directly converting syngas into ethanol. According to the method of the present invention, an ethanol product may be directly produced by using syngas as a raw material. Meanwhile, ...

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Номер записи: 39
03-07-2014 дата публикации

METHOD FOR PREPARING ETHANOL BY HYDROGENATION OF LOW-CARBON ESTER

Номер: WO2014101899A2
Автор: ZHU, Wenliang, LIU, Yong, LIU, Hongchao, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Provided in the present invention is a method for preparing ethanol by hydrogenation of a low-carbon ester, comprising passing a raw material gas containing a low-carbon ester and hydrogen gas through a reactor filled with a copper-based catalyst, and performing hydrogenation at a reaction temperature of 200-320°C, a reaction pressure of 0.5-20.0 Mpa, and a volume space velocity of 1000-40000 h-1 to prepare ethanol, wherein the copper-based catalyst is laded in stages, and the low-carbon ester in the raw material is fed in stages, with the molar ratio of the low-carbon ester to the hydrogen gas in the raw material gas being 1/2-1/100. The low-carbon ester raw material enters in stages the catalyst bed filled in stages, enabling effective control or adjustment of the temperature distribution of the catalyst bed, and avoiding occurrence of hot spots, thereby reducing side reactions, improving the selectivity of the target product and greatly extending the lifetime of the catalyst.

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Номер записи: 40
03-10-2019 дата публикации

COMPOSITE CATALYST, PREPARATION METHOD THEREFOR AND METHOD FOR PREPARING ETHYLENE

Номер: WO2019183842A1
Автор: LIU, Shiping, ZHU, Wenliang, LIU, Zhongmin, NI, Youming, LIU, Hongchao, LIU, Yong, MA, Xiangang
Принадлежит:

A composite catalyst, a preparation method therefor and a method for preparing ethylene. The composite catalyst comprises a zirconium-based oxide and a modified acidic molecular sieve, wherein the zirconium-based oxide has a mass content of 10 wt%-90 wt%, and the modified acidic molecular sieve has a mass content of 10 wt%-90 wt%; and the preparation method therefor is simple. The composite catalyst is used for preparing ethylene to break ASF distribution law for hydrocarbon in the Fischer-Tropsch (F-T) synthesis, wherein the selectivity of ethylene reaches 86%.

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Номер записи: 41
21-11-2019 дата публикации

METHOD FOR DIRECTLY PREPARING DIMETHYL ETHER BY SYNTHESIS GAS

Номер: WO2019218490A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

Provided is a method for directly preparing dimethyl ether by synthesis gas, the method comprises: the synthesis gas is passed through a reaction zone carrying a catalyst, and reacted under the reaction conditions sufficient to convert at least a portion of the raw materials to obtain the reaction effluent comprising dimethyl ether; and the dimethyl ether is separated from the reaction effluent, wherein the catalyst is zinc aluminum spinel oxide. In the present invention, only one zinc aluminum spinel oxide catalyst is used, which can make the synthesis gas to highly selectively form dimethyl ether, the catalyst has good stability and can be regenerated. The method of the present invention realizes the production of dimethyl ether in one step by the synthesis gas, and reduces the large energy consumption problem caused by step-by-step production.

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Номер записи: 42
06-08-2020 дата публикации

MOLECULAR SIEVE CATALYST, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

Номер: WO2020155144A1
Автор: LIU, Hongchao, LIU, Shiping, ZHU, Wenliang, LIU, Zhongmin, MA, Xiangang, LIU, Yong, ZHOU, Ziqiao, NI, Youming
Принадлежит:

Provided are a molecular sieve catalyst, a preparation method therefor, and an application thereof. The molecular sieve catalyst contains a modified Na-MOR molecular sieve, and the modification comprises: organic ammonium salt exchange, dealumination treatment, and ammonium ion exchange. The catalyst obtained by the method is used in dimethyl ether for one-step production of methyl acetate, the methyl acetate has high activity and stable performance, and the needs of industrial production can be satisfied.

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Номер записи: 43
26-05-2016 дата публикации

METHOD FOR PREPARING METHYL FORMATE

Номер: WO2016077967A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Yong, LIU, Hongchao, LIU, Zhongmin, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

The present application relates to a method for preparing methyl formate. A raw material containing formaldehyde, methanol and/or dimethyl ether is introduced into a first reaction area to come into contact with catalyst A and be separated therefrom, constituent I thus produced is introduced into a second reaction area to come into contact with catalyst B and then be separated therefrom, thus producing methyl formate that serves as a product, dimethyl ether that is returned to the first reaction area, and constituent II that is returned to the second reaction area. The ratio of formaldehyde, methanol and/or dimethyl ether in the raw material in terms of the number of moles of carbon atoms contained in each constituent is methyl formate : methanol and/or dimethyl ether = 1 : 2-4; the weight hourly space velocity of formaldehyde in the raw material is 0.01-15.0 h-1; the temperature in the first reaction area is 50-100 °C; the temperature in the second reaction area is 50-200 °C; the pressure ...

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Номер записи: 44
25-06-2015 дата публикации

METHOD FOR USE IN PRODUCTION OF ETHANOL AND COPRODUCTION OF METHANOL

Номер: WO2015089704A1
Автор: LIU, Yong, ZHU, Wenliang, LIU, Hongchao, NI, Youming, LIU, Zhongmin, MENG, Shuanghe, LI, Lina, LIU, Shiping, ZHOU, Hui
Принадлежит:

Disclosed is a method for production of ethanol and coproduction of methanol on a catalyst in one reactor by using a synthesized gas and an acetate cofeed as reaction raw materials. More specifically, provided in the present invention is a method for use in production of ethanol and for coproduction of methanol. A raw-material gas containing acetate and a synthesized gas is passed through a reactor fitted with a catalyst, and, ethanol is produced and methanol is coproduced under the conditions of a reaction temperature of 150-350 °C, a reaction pressure of 0.1-20.0 MPa, a reaction volume space velocity of 100-45000 mlg-1h-1, and an acetate mass space velocity of 0.01-5.0 h-1, where the active components of the catalyst are copper and optionally zinc and/or aluminum. The method of the present invention greatly facilitates conversion of carbon monoxide to produce methanol and, at the same time, maintains extremely high acetate hydrogenation activity. Also, the method of the present invention ...

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Номер записи: 45
23-05-2019 дата публикации

METHOD FOR DIRECTLY PREPARING P-XYLENE FROM SYNTHETIC GAS AND AROMATIC HYDROCARBON

Номер: WO2019095404A1
Автор: NI, Youming, ZHU, Wenliang, LIU, Zhongmin, LIU, Yong, CHEN, Zhiyang, LIU, Hongchao, MA, Xiangang, LIU, Shiping
Принадлежит:

Disclosed is a method for directly preparing p-xylene from synthetic gas and an aromatic hydrocarbon. The method comprises: enabling a raw material containing synthetic gas and an aromatic hydrocarbon other than p-xylene to be contacted with a catalyst in a reaction zone under a reaction condition sufficient to convert at least part of the raw material, so as to obtain a reaction effluent containing p-xylene; and separating p-xylene from the reaction effluent. The catalyst contains at least one of an inert carrier limited-range high-dispersion metal oxide material, an acidic molecular sieve, and optional graphite powder, and a dispersing agent; in the inert carrier limited-range high-dispersion metal oxide material, the inert carrier is at least one of silicon oxide and aluminum oxide, and the metal oxide has a metal content of being less than or equal to 10 mass%; the inert carrier limited-range high-dispersion metal oxide material is measured by weight; the acidic molecular sieve is selected ...

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Номер записи: 46
09-04-2021 дата публикации

High-voltage centrally installed switchgear with heat preservation and corrosion prevention functions

Номер: CN212935158U
Автор: ZHU ZHONGQI, ZHU WENLIANG, 朱中奇, 朱文良
Принадлежит: XUZHOU ZHONGTAI ELECTRIC CO LTD, XUZHOU ZHONGTAI ELECTRIC CO., LTD., 徐州中泰电气有限公司

The utility model discloses a high-voltage centrally installed switchgear with heat insulation and corrosion resistance, comprising a main body structure, the outer surface of the main body structure is provided with a heat insulation housing, the left side of the main body structure is provided with a first cabinet door and a second cabinet door, and the first cabinet door and the second cabinet door are rotatably connected with the main body structure through hinges. And the first cabinet door is arranged above the second cabinet door. According to the high-voltage centrally installed switchgear with the heat preservation and corrosion prevention functions, the humidity sensor is arranged, when the humidity sensor detects that the humidity in the main body structure exceeds a set value, the humidity sensor transmits information to the controller, the controller starts the draught fan to blow air, and meanwhile the heating device can heat air blown out by the draught fan; then the heated ...

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Номер записи: 47
22-08-2023 дата публикации

Step-impact vibration aesthetic modeling method in spur gear peeling fault

Номер: CN116629006A
Автор: LIU ZONGYAO, WANG YUTONG, LI LIN, WANG YADONG, ZHU WENLIANG, GENG HAO
Принадлежит:

The invention provides a step-impact vibration aesthetic modeling method during spur gear peeling failure, which comprises the following steps: step 1) simulating a step response when a spur gear enters a failure area in a peeling state by using a step function, and simulating an impact response when the spur gear exits the failure area in the peeling state by using an impact function; 2) establishing a step-impact model for describing spur gear spalling faults based on the relationship between the step response and the impact response amplitude peak ratio; 3) calculating a time interval between a step response and an impact response in the step-impact model according to the geometrical relationship and the peeling size of the straight gear; and step 4) establishing a vibration aesthetic model when the spur gear has a spur gear peeling fault. According to the method, an independent analysis model is established for the gear peeling fault, and judgment of the gear peeling fault is separated ...

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Номер записи: 48
13-06-2023 дата публикации

Method for producing aromatic hydrocarbon from carbon dioxide and dimethyl ether

Номер: CN116254130A
Автор: WANG KUNYUAN, ZHU WENLIANG, LIU ZHONGMIN
Принадлежит:

The invention discloses a method for producing aromatic hydrocarbon from carbon dioxide and dimethyl ether. The method comprises the following steps: introducing raw material gas containing carbon dioxide and dimethyl ether into a reactor to contact and react with a catalyst to obtain the aromatic hydrocarbon, the catalyst is obtained by molding, roasting and modifying a material containing a molecular sieve and a binder, the modification comprises oxide modification, silanization reagent modification and hydrothermal treatment. The process route for producing the aromatic hydrocarbon by using the carbon dioxide and the dimethyl ether as the raw materials overcomes the defects of the traditional process route for preparing the aromatic hydrocarbon from the methanol, and has good economical efficiency.

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Номер записи: 49
09-04-2021 дата публикации

Ring main unit convenient to combine and fix

Номер: CN212935319U
Автор: ZHU ZHONGQI, ZHU WENLIANG, 朱中奇, 朱文良
Принадлежит: XUZHOU ZHONGTAI ELECTRIC CO LTD, XUZHOU ZHONGTAI ELECTRIC CO., LTD., 徐州中泰电气有限公司

The utility model discloses a ring main unit convenient for combination and fixation, comprising a main cabinet, a second bolt and a heat radiation channel, the right side of the main cabinet is provided with a middle cabinet, the right side of the middle cabinet is provided with an auxiliary cabinet, the middle cabinet is arranged between the main cabinet and the auxiliary cabinet, and the right side of the main cabinet and the right side of the middle cabinet are respectively provided with a first flange plate. Second flange plates are arranged on the left side of the middle cabinet and the left side of the auxiliary cabinet. The ring main unit convenient to combine and fix is provided with the first flange plate, the second flange plate and the sealing washer, the second bolt is rotated, so that the outer ring plate on the main cabinet is connected and fastened with the inner ring plate on the middle cabinet, the first flange plate is attached to the second flange plate, and the first ...

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Номер записи: 50
13-06-2023 дата публикации

Method for preparing methyl methoxyacetate through carbonylation of methylal

Номер: CN116253641A
Автор: NI YOUMING, ZHU WENLIANG, LIU ZHONGMIN
Принадлежит:

The invention provides a method for preparing methyl methoxyacetate by carbonylation of methylal, which comprises the following steps: enabling a raw material containing methylal and carbon monoxide to pass through a reactor loaded with a molecular sieve catalyst to react under expected reaction conditions to prepare methyl methoxyacetate, wherein between the first end and the opposite second end of the reactor, the molecular sieve catalyst is loaded in n reaction zones which are separated from one another but are in fluid communication, n is greater than or equal to 2, and the first reaction zone to the nth reaction zone are sequentially arranged from the first end to the second end; methylal enters the reaction zone through different methylal feed ports on the reactor; carbon monoxide is introduced into the n reaction zones which are separated from one another through a carbon monoxide feeding hole formed in the first end of the reactor; and reaction products flow out of the reactor through ...

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Номер записи: 51
14-04-2023 дата публикации

Preparation method of aromatic hydrocarbon

Номер: CN115959961A
Автор: LIU HONGCHAO, FANG XUDONG, ZHU WENLIANG, LIU ZHONGMIN, NI YOUMING, CHEN ZIYANG
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The invention discloses a method for preparing aromatic hydrocarbon. The method comprises the step of contacting raw material gas containing halogenated methane and carbon monoxide with a solid acid catalyst to react to obtain the aromatic hydrocarbon, the solid acid catalyst comprises an acidic zeolite molecular sieve. According to the method disclosed by the invention, carbon monoxide is added in the conversion process of halogenated methane, so that the selectivity of aromatic hydrocarbon (especially BTX) can be obviously improved; correspondingly, the method is low in production and separation energy consumption, so that the method has a wide application prospect.

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Номер записи: 52
13-06-2023 дата публикации

Method for preparing methyl glycolate and glycollic acid by hydrolyzing methyl methoxyacetate

Номер: CN116253634A
Автор: NI YOUMING, ZHU WENLIANG, LIU ZHONGMIN
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The invention discloses a method for preparing methyl glycolate and glycollic acid by hydrolyzing methyl methoxyacetate, which comprises the following steps: enabling raw materials containing methyl methoxyacetate and water to pass through a reactor filled with an acidic molecular sieve catalyst, and reacting under certain reaction conditions to prepare the methyl glycolate and the glycollic acid, wherein at least two spaced reaction zones of the reactor are filled with the acidic molecular sieve catalyst between the upstream and the downstream of the reactor, and methyl methoxyacetate is respectively introduced into the at least two spaced reaction zones through different methyl methoxyacetate feed ports; water is introduced into the at least two spaced reaction zones via a water feed port disposed upstream of the reactor. Through the method, the conversion rate of methyl methoxyacetate and the selectivity of methyl glycolate and glycollic acid are improved, and the separation and circulation ...

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Номер записи: 53
16-06-2023 дата публикации

Preparation method of methyl ester compound

Номер: CN116262699A
Автор: NI YOUMING, ZHU WENLIANG, LIU ZHONGMIN
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The invention discloses a preparation method of a methyl ester compound, which comprises the following steps: carrying out esterification reaction on raw materials of a carboxyl compound, methanol and/or dimethyl ether to obtain the methyl ester compound, wherein the general formula I of the carboxyl compound is R-CH2-COOH, and R is methoxy or hydroxyl; the methyl ester compound comprises at least one of methyl methoxyacetate and methyl glycolate. The invention also discloses a preparation method of methyl glycolate. The preparation method comprises the following steps: a) carrying out carbonylation reaction on methylal and carbon monoxide to obtain methyl methoxyacetate; b) carrying out hydrolysis reaction on methyl methoxyacetate and water to obtain methyl glycolate; and c) carrying out esterification reaction on glycollic acid, methoxyacetic acid, methanol and dimethyl ether to obtain methyl glycolate. According to the method, the separation process can be greatly simplified, energy ...

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Номер записи: 54