Hydrocarbon fluids with improved pour point

The addition of alkyl salicylic acids and esters represented by Formula I where R1═H or C12 to C22 linear alkyl group; R2═H or linear C12 to C22 carbonyl group; and R3=linear C12 to C22 alkyl group reduces the pour point of a hydrocarbon base oil. Thus, both a method for reducing the pour point of hydrocarbon oils and lubricating composition containing pour point reducing salicylates are provided. The hydrocarbon base oil in such method and composition preferably is a Group III base oil.

Lubricating compositions

The pour point of a lubricating composition consisting essentially of from about 5 wt % to about 100 wt % of a Group III base stock and from 0 wt % to about 95 wt % of a Group IV base stock is reduced by incorporating in the lubricating composition an effective amount of a polyol ester represented by Formula I wherein x=OH or CH 2 OH; y=H, CH 3 , CH 3 CH 2 , or CH 2 OH; and R 1 is an aliphatic hydrocarbyl group having from about 16 to about 30 carbon atoms.

Lubricant compositions with improved properties

A lubricant composition for providing friction reducing properties and VI and solvency improving properties in a lubricant system is disclosed. The lubricant composition comprises a major amount of at least one base oil and an effective amount of a high viscosity polyester additive having a kinematic viscosity at 100° C. of at least about 2,500 mm2/s.

Method for lubricating high pressure hydraulic system using phosphate ester hydraulic fluid

The present invention is a method for operating a hydraulic system at pressures of about 4000 psi or higher, preferably about 5000 psi or higher by using as the lubricant a phosphate ester hydraulic oil comprising a fire resistant phosphate esters base stock, a viscosity index improver, an anti erosion agent, an acid scavenger. The fluid used in the present method can also contain rust inhibitors and/or antioxidants.

Lubricant composition with improved electrical properties

A lubricant composition for improving electrical properties in lubricant systems to reduce the formation of sludge and varnish is disclosed. The lubricant composition comprises a base oil and an effective amount of antistatic additive to provide the composition with an electrical conductivity of at least about 50 pS/m at 25° C. and a dielectric strength of at least 300 V/mil.

Method for enhancing the oxidation and nitration resistance of natural gas engine oil compositions and such compositions

The resistance to oxidation and nitration of a gas engine oil is improved by the use of a combination of a hindered phenolic antioxidant and an (alkylated) phenyl-α-naphthylamine antioxidant. The additional use of an organo molybdenum compound further enhances the resistance to oxidation and nitration.

Lubricating oil composition

A lubricating composition is provided that has good elastomer compatibility and friction-reduced properties which comprises a base oil having a viscosity index (VI) greater than about 80, a kinematic viscosity (Kv) of 100° C. of from about 2 mm 2 /s, containing 90 wt % or more saturates, having less than about 5 ppm sulfur, and wherein the base oil is derived from a waxy feed; and a minor amount of (a) a polyol ester of an aliphatic carboxylic acid having 12 to 24 carbon atoms and (b) an oil soluble or oil dispersible molybdenum compound.

Method for improving the cooling efficiency of a functional fluid

A method is disclosed for improving the cooling of equipment lubricated by functional fluids, such as power train fluids, by lubricating the equipment with a functional fluid comprising a wax isomerate or hydrodewaxate base stock and at least one performance additive thus permitting a reduction in the volume of lubricant used and a concomitant reduction in the size of the lubricant reservoir and related equipment.

Method for lubricating high pressure hydraulic system using phosphate ester hydraulic fluid

The present invention is a method for operating a hydraulic system at pressures of about 4000 psi or higher, preferably about 5000 psi or higher by using as the lubricant a phosphate ester hydraulic oil comprising a fire resistant phosphate esters base stock, a viscosity index improver, an anti erosion agent, an acid scavenger. The fluid used in the present method can also contain rust inhibitors and/or antioxidants.

Grease compositions

A grease composition is provided that exhibits good low temperature torque and low oil separation. The grease comprises a base oil having a VI greater than about 120, a pour point below about 20° C. wherein the base oil contains about 10 wt % to about 100 wt % of a gas to liquid base stock and from 0 wt % to about 90 wt % of a polyalphaolefin fluid.

Lubricant compositions having improved low temperature properties

The pour points of lubricating compositions are significantly improved when Group III and GTL base stocks are formulated with alkyl alkaline earth metal detergents. In a preferred embodiment, calcium alkyl salicylate detergents are used.

METHOD FOR IMPROVING THE OXIDATION STABILITY OF BIODIESEL AS MEASURED BY THE RANCIMAT TEST

The oxidation stability of biodiesel fuel or mixtures of biodiesel fuel and conventional diesel fuel is improved by at least 50% by the addition to such fuel of at least 250 mg of N-M (C1-C5) alkyl cyclohexyl amine per liter of the biodiesel fuel or per liter of the biodiesel fuel component in the mixture of biodiesel fuel and conventional diesel fuel as compared to the oxidation stability of said fuel without such additive.

Method for improving the corrosion inhibiting properties of lubricant compositions

Lubricating oils of improved initial and long term metal corrosion inhibiting properties comprises a base stock containing one or more hydrodewaxate or hydroisomerate base stock(s) and/or base oil(s), GTL base stock(s) and/or base oil(s), or mixtures thereof, preferably GTL base stock(s) and/or base oil(s), boiling in the lubricating oil boiling range and an additive amount of an anti-corrosion additive.

Fuel economy lubricant compositions

The present invention provides a lubricating composition comprising a major amount of a GTL lubricating base oil and a friction modifier consisting essentially of oil soluble fatty acid esters of a polyol. Such lubricating compositions have reductions in their friction coefficients that are greater than similar compositions formulated with Group III or PAO base oils.

Monoepoxycyclohexyl carboxylates and aircraft hydraulic fluids containing same

Functional fluids employing organic phosphate ester basestocks and mono-epoxide acid scavengers have improved EPR seal compatibility by using as the acid scavengers a mono-epoxide having the formula where R1is H or a C1to C4alkyl; x is an integer of 1 to 2; y is an integer of 1 to 4; and R2is a C1to C4alkyl group or a phenyl group.

Method for lubricating high pressure hydraulic system using phosphate ester hydraulic fluid

The present invention is a method for operating a hydraulic system at pressures of about 4000 psi or higher, preferably about 5000 psi or higher by using as the lubricant a phosphate ester hydraulic oil comprising a fire resistant phosphate esters base stock, a viscosity index improver, an anti erosion agent, an acid scavenger. The fluid used in the present method can also contain rust inhibitors and/or antioxidants.

Lubricating compositions

The pour point of a lubricating composition consisting essentially of from about 5 wt % to about 100 wt % of a Group III base stock and from 0 wt % to about 95 wt % of a Group IV base stock is reduced by incorporating in the lubricating composition an effective amount of a polyol ester represented by Formula I wherein x=OH or CH 2 OH; y=H, CH 3 , CH 3 CH 2 , or CH 2 OH; and R 1 is an aliphatic hydrocarbyl group having from about 16 to about 30 carbon atoms.

Phosphate ester base stocks comprising mixed n-butyl/isobutyl phosphate esters and aircraft hydraulic fluids comprising the same

Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of the fluid, of n-butyl diisobutyl phosphate or di-n-butyl isobutyl phosphate or a mixture thereof; from 0 to about 15 weight percent, based on the total weight of the fluid, of one or more triaryl phosphates; and an effective amount of a viscosity index improver, an acid control additive and an erosion inhibitor.

Hydraulic fluids with erosion resistance

The erosion resistance of phosphate ester based hydraulic fluids has been found to be enhanced by incorporating in the fluid a minor amount of an alkali metal perfluorophosphate and a mono epoxycyclohexane carboxylate.

Fuel economy lubricant compositions

The present invention provides a lubricating composition comprising a major amount of a GTL lubricating base oil and a friction modifier consisting essentially of oil soluble fatty acid esters of a polyol. Such lubricating compositions have reductions in their friction coefficients that are greater than similar compositions formulated with Group III or PAO base oils.

BLENDING OF DEWAXED BIOFUELS AND SYNTHESIZED PARAFFINIC KEROSINES WITH MINERAL-BASED KERO(JET) DISTILLATE CUTS TO PROVIDE ON-SPEC JET FUELS

The present invention describes a method of making a jet fuel composition comprising: blending from about 3 vol % to about 30 vol % of a catalytically and/or thermally cracked blendstock into a non-cracked jet-boiling-range distillate to produce a jet-type blend with a smoke point less than 18 mm; and thereafter, blending from about 2 vol % to about 50 vol % of synthesized paraffinic kerosine (SPK) into the jet-type blend to produce a jet fuel with a smoke point of at least 18 mm. 1. A method of making a jet fuel comprising:blending from about 3 vol % to about 30 vol % of a catalytically and/or thermally cracked blendstock into a non-cracked jet-boiling-range distillate to produce a jet-type blend with a smoke point less than 18 mm; andthereafter, blending from about 2 vol % to about 50 vol % of synthesized paraffinic kerosine into the jet-type blend to produce a jet fuel with a smoke point of at least 18 mm.2. The method according to claim 1 , wherein the blending of synthesized paraffinic kerosine into the jet-type blend achieves at least one of the following for the resulting jet fuel: a JFTOT pass at or above about 260° C.; a naphthalenes content below about 3.0 vol % claim 1 , an aromatics content below about 25 vol % claim 1 , and a total sulfur content below 0.30 mass %.3. The method according to claim 1 , further comprising utilizing a relationship between smoke point and concentration of cracked blendstock and/or a relationship between smoke point and concentration of synthesized paraffinic kerosine to assist in selecting appropriate amounts of different components in the jet fuel product.4. The method according to claim 3 , wherein measurement of smoke point is carried out with an automated procedure.5. The method according to claim 1 , wherein measurement of smoke point is carried out with an automated procedure.6. The method according to claim 1 , wherein the cracked blendstock comprises heavy cat naphtha from fluid catalytic cracking.7. The method ...

Servo valve erosion inhibited aircraft hydraulic fluids

The incorporation of a minor amount of a salt of pentafluorobenzene sulfonic acid to phosphate ester based functional fluids enhances the anti-erosion properties of the fluid.

Removal of light fluoroalkanes from hydrocarbon streams

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C3 to C5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

Method for reducing deposit formation in lubricant compositions

The deposit forming tendency of Group II, III and IV lubricating base oils is reduced by the use of synergistic mixtures of diphenylamines or phenyl-α-naphthylamines with triarylphosphites.

Methods of inhibiting precipitation of biodiesel fuel components

Embodiments of the invention provide a method of inhibiting precipitation of biodiesel fuel components. The method includes providing a biodiesel fuel composition; providing a copolymer comprising at least first and second polymer units, said first polymer units derived from a carboxylic acid anhydride and said second polymer units derived from an olefin; and blending said copolymer with the biodiesel fuel to form a treated fuel composition. Alternatively, instead of the copolymer, a dialkylene glycol additive can be provided. Embodiments of the invention provide a method of reducing the cold soak filter blocking tendency of a biodiesel fuel composition.

Lubricant composition with low deposition tendency

Lubricant base oil blends and finished lubricating compositions having low deposition tendency are provided. The base oil blends consist essentially of about 20 wt % to about 80 wt %, based on the total weight of the blend, of an F-T Group III base oil having less than 5 wt % cycloparaffins, the balance of the blend being a Group III base oil having at least 35 wt % cycloparaffins. The finished lubricating compositions comprise a major amount of the base oil blend of the invention and at least one engine oil additive.

METHODS OF INHIBITING PRECIPITATION OF BIODIESEL FUEL COMPONENTS

Embodiments of the invention provide a method of inhibiting precipitation of biodiesel fuel components. The method includes providing a biodiesel fuel composition; providing a copolymer comprising at least first and second polymer units, said first polymer units derived from a carboxylic acid anhydride and said second polymer units derived from an olefin; and blending said copolymer with the biodiesel fuel to form a treated fuel composition. Alternatively, instead of the copolymer, a dialkylene glycol additive can be provided. Embodiments of the invention provide a method of reducing the cold soak filter blocking tendency of a biodiesel fuel composition.

Grease compositions

A grease composition is provided that exhibits good low temperature torque and low oil separation. The grease comprises a base oil having a VI greater than about 120, a pour point below about −20° C. wherein the base oil contains about 10 wt % to about 100 wt % of a gas to liquid base stock and from 0 wt % to about 90 wt % of a polyalphaolefin fluid.

Removal of light fluoroalkanes from hydrocarbon streams

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C3 to C5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

Phosphate ester base stocks comprising mixed n-butyl/isobutyl phosphate esters and aircraft hydraulic fluids comprising the same

Disclosed are phosphate ester base fluids and aircraft hydraulic fluids containing mixed n-butyl/isobutyl phosphate ester components. The disclosed aircraft hydraulic fluids contain from about 30 to about 95 weight percent, based on the total weight of the fluid, of n-butyl diisobutyl phosphate or di-n-butyl isobutyl phosphate or a mixture thereof; from 0 to about 15 weight percent, based on the total weight of the fluid, of one or more triaryl phosphates; and an effective amount of a viscosity index improver, an acid control additive and an erosion inhibitor.

Lubricant compositions with improved properties

A lubricant composition for providing friction reducing properties and VI and solvency improving properties in a lubricant system is disclosed. The lubricant composition comprises a major amount of at least one base oil and an effective amount of a high viscosity polyester additive having a kinematic viscosity at 100° C. of at least about 2,500 mm2/s.

Method for increasing color quality and stability of fuel

This invention relates to process for increasing color quality and thermal stability of fuel. Fuel that is provided as a feedstock is contacted or treated with an acidic, ion-exchange resin to increase the color quality and stability of the fuel. The process provides the benefit of substantially increasing the long term quality of both color and oxidation (JFTOT) stability.

Aviation phosphate ester functional fluids with enhanced acid scavenging properties

The present invention is an aviation phosphate ester functional fluid of enhanced acid scavenging properties comprising a phosphate ester base oil and a mixture of aliphatic epoxide and carbodiimide acid scavengers.

Servo valve erosion inhibited aircraft hydraulic fluids

Phosphate ester based functional fluids containing novel anti-erosion additives provides enhanced results in erosion control.

Method for haze mitigation and filterability improvement for gas-to-liquid hydroisomerized base stocks

Haze formation in heavy Gas-to-Liquids (GTL) base stock is mitigated by the addition to said GTL base stock of one or more particular additives.

Method for improving the air release rate of GTL base stock lubricants using synthetic ester, and composition

A method for improving the air release rate of a Gas-to-Liquids (GTL) base stock and/or base oil by the addition to such base stock and/or base oil of a synthetic ester.

Servo valve erosion inhibited aircraft hydraulic fluids

Phosphate ester based functional fluids containing novel anti-erosion additives provides enhanced results in erosion control.

Hydrocarbon fluids with improved pour point

The addition of alkyl salicylic acids and esters represented by Formula I where R1H or C12 to C22 linear alkyl group; R2H or linear C12 to C22 carbonyl group; and R3=linear C12 to C22 alkyl group reduces the pour point of a hydrocarbon base oil. Thus, both a method for reducing the pour point of hydrocarbon oils and lubricating composition containing pour point reducing salicylates are provided. The hydrocarbon base oil in such method and composition preferably is a Group III base oil.

Lubricating oil composition

A lubricating composition is provided that has good elastomer compatibility and friction-reduced properties which comprises a base oil having a viscosity index (VI) greater than about 80, a kinematic viscosity (Kv) at 100° C. of from about 2 mm2/s to about 50 mm2/s, containing 90 wt % or more saturates, having less than about 5 ppm sulfur, and wherein the base oil is derived from a waxy feed; said composition being free of a tallow diaminepropane dioleate; and containing a minor amount of (a) a polylester of an aliphatic carboxylic acid having 12 to 24 carbon atoms and (b) an oil soluble or oil dispersible molybdenum compound.

Lubricant composition with improved electrical properties

A lubricant composition for improving electrical properties in lubricant systems to reduce the formation of sludge and varnish is disclosed. The lubricant composition comprises a base oil and an effective amount of antistatic additive to provide the composition with an electrical conductivity of at least about 50 pS/m at 25° C. and a dielectric strength of at least 300 V/mil.

BIODIESEL AND BIODIESEL BLEND FUELS

Fuel compositions are provided which comprise synergistic combinations of a biodiesel or biodiesel blend, an antioxidant comprising a mixture of at least one diphenol and at least one sterically hindered phenol, and a cetane improver. The fuel compositions described herein exhibit a unique combination of improved oxidation stability and enhanced ignition quality.

Flame retardant lubricating oil compositions

Lubricating oil compositions having low flammability properties and good low temperatures suitable for use as hydraulic fluids comprise a major amount of GTL base oil, optionally a minor amount of polyolphaolefins, an additive amount of about 5 to 30 wt % of dicarboxylic acid ester and minor amount of a pour-point depressant.

BLENDING OF DEWAXED BIOFUELS WITH MINERAL-BASED KERO(JET) DISTILLATE CUTS TO PROVIDE ON-SPEC JET FUELS

The present invention describes a method of making a jet fuel composition comprising: providing a mineral-based kero/jet-type distillate component having certain enumerated physico-chemical properties, typically an off-spec jet fuel; providing a deoxygenated and dewaxed renewable component derived from triglycerides and/or fatty acids and having an isoparaffin to normal paraffin ratio from about 2:1 to about 6:1 and an aromatics content less than about 1 vol %; and blending from about 75 vol % to about 97 vol % of the mineral-based distillate components with from about 3 vol % to about 25 vol % of the renewable component to form an on-spec blended jet fuel composition. 1. A method of making a jet fuel composition comprising:providing a mineral-based kero/jet-type distillate component having an initial boiling point of at least about 100° C. and two or more of the following enumerated properties: a T90 boiling point from about 260° C. to about 295° C.; a final boiling point from about 275° C. to about 300° C.; a freezing point from about −45° C. to about −20° C.; a smoke point from about 14 mm to about 19 mm; a naphthalene content from about 2.8 vol % to about 3.5 vol %; a JFTOT VTR rating failing the jet fuel specification; and a sulfur content from about 2000 wppm to about 3500 wppm;providing a deoxygenated and dewaxed renewable component derived from triglycerides and/or fatty acids and having an isoparaffin to normal paraffin ratio from about 2:1 to about 6:1 and an aromatics content less than about 1 vol %; andblending from about 75 vol % to about 97 vol % of the mineral-based distillate components with from about 3 vol % to about 25 vol % of the renewable component to form a jet fuel composition having two or more of the following enumerated properties: a final boiling point of at most 300° C. or at least 7° C. below the final boiling point of the mineral-based distillate component alone; a freezing point of at most −40° C. or at least 4° C. less than the ...

Removal of light fluoroalkanes from hydrocarbon streams

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C 3 to C 5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

METHOD FOR INCREASING THERMAL STABILITY OF A FUEL COMPOSITION USING A SOLID PHOSPHORIC ACID CATALYST

This invention relates to a method for increasing thermal stability of fuel, as well as in reducing nitrogen content and/or enhancing color quality of the fuel. According to the method, a fuel feedstock can be treated with a solid phosphoric acid catalyst under appropriate catalyst conditions, e.g., to increase the thermal stability of the fuel feedstock. Preferably, the fuel feedstock can be treated with the solid phosphoric acid catalyst at a ratio of catalyst mass within a contact zone to a mass flow rate of feedstock through the zone of at least about 18 minutes to increase the thermal stability of the fuel feedstock, along with reducing nitrogen content and/or enhancing color quality. 1. A method for increasing thermal stability of fuel , comprising:flowing a fuel feedstock through a contact zone containing solid phosphoric acid catalyst within the contact zone, wherein the fuel feedstock has an initial and final boiling point within a range from about 90° C. to about 360° C. (194° F. to about 680° F.), and wherein the fuel feedstock is in contact with the solid phosphoric acid catalyst for a period of time of at least about 18 minutes; andproducing a fuel product that has a higher thermal stability than the fuel feedstock according to ASTM D3241-09.2. The method of claim 1 , wherein the solid phosphoric acid catalyst is comprised of silicon orthophosphate.3. The method of claim 2 , wherein the solid phosphoric acid catalyst is further comprised of silicon pyrophosphate and exhibits an integrated X-ray diffraction (XRD) reflectance peak intensity ratio of silicon orthophosphate to silicon pyrophosphate of at least about 4:1.4. The method of claim 2 , wherein the solid phosphoric acid catalyst has a silicon phosphate crystallinity of at least 25% relative to an alpha-alumina standard.5. The method of claim 1 , wherein the solid phosphoric acid catalyst is comprised of pyrophosphate crystallites with at least 0.1% crystallinity (as measured by X-ray diffraction) ...

Dye-stable biofuel blend compositions

The disclosure relates to a dye-stable furnace fuel composition comprising: about 10 to 99 parts by volume of a mineral oil component having an effective boiling range from about 160° C. to about 380° C.; about 1 to 90 parts by volume of a biocomponent fuel component comprising C 1 -C 5 alkyl esterified fatty acids from renewable sources; one or more azo dye components present in an amount from about 0.5 mg/kg to about 5 mg/kg, relative to the total fuel composition; and a tert-butyl-functionalized hydroquinone antioxidant component present in an amount of at least about 50 vppm, relative to the fuel composition, wherein the fuel composition exhibits an increased dye stability, relative to a fuel composition having similar mineral oil and biocomponent fuel components and identical azo dye component(s), but having a different or no antioxidant component.

REMOVAL OF LIGHT FLUOROALKANES FROM HYDROCARBON STREAMS

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably Cto Chydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality 1. A process for conditioning an adsorbent comprising:(a) providing an adsorbent having strong acid functionality for conditioning;(b) optionally, applying water to the adsorbent;(c) applying an alcohol to the adsorbent; and(d) drying the adsorbent at an elevated temperature.2. The process of claim 1 , wherein the acid functionality of the adsorbent is sulfonic acid.3. The process of claim 1 , wherein the adsorbent is selected from the group consisting of mineral based adsorbents and organic based adsorbents.4. The process of claim 1 , wherein the adsorbent is a mineral based adsorbent selected from the group consisting of zeolites claim 1 , clays claim 1 , and silica gels.5. The process of claim 1 , wherein the adsorbent is comprised of a silica gel with a sulfonic acid functionality.6. The process of claim 1 , wherein the adsorbent is comprised of a polymeric strong cation exchange resin.7. The process of claim 6 , wherein the polymeric strong cation exchange resin is a styrene/divinyl benzene copolymer resin having a sulfonic acid functionality.8. The process of claim 1 , wherein water is applied to the adsorbent prior to the application of the alcohol.9. The process of claim 8 , wherein the alcohol is isopropyl alcohol claim 8 , methanol claim 8 , ethanol claim 8 , n-propanol claim 8 , n-butanol claim 8 , isobutanol claim 8 , sec-butanol claim 8 , or tert-butanol.10. The process of claim 1 , wherein the adsorbent is dried at a temperature of from about 20° C. to about 80° C.11. The process of claim 10 , wherein the adsorbent is dried at a temperature of about 60° C.12. A system for removing fluoroalkanes from a fluoroalkane-containing ...

Methods of inhibiting precipitation of biodiesel fuel components

Embodiments of the invention provide a method of inhibiting precipitation of biodiesel fuel components. The method includes providing a biodiesel fuel composition; providing a copolymer comprising at least first and second polymer units, said first polymer units derived from a carboxylic acid anhydride and said second polymer units derived from an olefin; and blending said copolymer with the biodiesel fuel to form a treated fuel composition. Alternatively, instead of the copolymer, a dialkylene glycol additive can be provided. Embodiments of the invention provide a method of reducing the cold soak filter blocking tendency of a biodiesel fuel composition.

Process for breaking emulsions produced during recovery of bitumens and heavy oils

Abstract: A process is described for breaking oil-in-water emulsions formed during recovery of bitumen or heavy oil. It comprises contacting the emulsion with a high ash particulate agent selected from high ash coal rejects, fly ash from coking gas and red mud from the production of alumina.

Blending of dewaxed biofuels with mineral-based kero(jet) distillate cuts to provide on-spec jet fuels

Stable alkoxylated fatty acid alkyl esters from transesterification-alkoxylation of vegetable oils

Alkoxylated fatty acid alkyl esters are produced from a bio-component feed, preferably containing triglycerides. The triglycerides can be reacted with an alcohol in the presence of an acidic catalyst to form alkoxylated fatty acid alkyl esters, which can provide improved low temperature properties and/or improved oxidative stability in petrochemical products, relative to non-alkoxylated versions of the fatty acid alkyl esters.

Stable alkoxylated fatty acid alkyl esters from transesterification-alkoxylation of vegetable oils

Alkoxylated fatty acid alkyl esters are produced from a bio-component feed, preferably containing triglycerides. The triglycerides can be reacted with an alcohol in the presence of an acidic catalyst to form alkoxylated fatty acid alkyl esters, which can provide improved low temperature properties and/or improved oxidative stability in petrochemical products, relative to non-alkoxylated versions of the fatty acid alkyl esters.

Stable alkoxylated fatty acid alkyl esters from transesterification-alkoxylation of vegetable oils

Alkoxylated fatty acid alkyl esters are produced from a bio-component feed, preferably containing triglycerides. The triglycerides can be reacted with an alcohol in the presence of an acidic catalyst to form alkoxylated fatty acid alkyl esters, which can provide improved low temperature properties and/or improved oxidative stability in petrochemical products, relative to non-alkoxylated versions of the fatty acid alkyl esters.

Stable alkoxylated fatty acid alkyl esters from transesterification-alkoxylation of vegetable oils

Alkoxylated fatty acid alkyl esters are produced from a bio-component feed, preferably containing triglycerides. The triglycerides can be reacted with an alcohol in the presence of an acidic catalyst to form alkoxylated fatty acid alkyl esters, which can provide improved low temperature properties and/or improved oxidative stability in petrochemical products, relative to non-alkoxylated versions of the fatty acid alkyl esters.

Lubricant composition with low deposition tendency

Lubricant base oil blends and finished lubricating compositions having low deposition tendency are provided. The base oil blends consist essentially of about 20 wt % to about 80 wt %, based on the total weight of the blend, of an F-T Group III base oil having less than 5 wt % cycloparaffins, the balance of the blend being a Group III base oil having at least 35 wt % cycloparaffins. The finished lubricating compositions comprise a major amount of the base oil blend of the invention and at least one engine oil additive.

Blending of dewaxed biofuels with mineral-based kero(jet) distillate cuts to provide on-spec jet fuels

The present invention describes a method of making a jet fuel composition comprising: providing a mineral-based kero/jet-type distillate component having certain enumerated physico-chemical properties, typically an off-spec jet fuel; providing a deoxygenated and dewaxed renewable component derived from triglycerides and/or fatty acids and having an isoparaffin to normal paraffin ratio from about 2: 1 to about 6: 1 and an aromatics content less than about 1 vol%; and blending from about 75 vol% to about 97 vol% of the mineral-based distillate components with from about 3 vol% to about 25 vol% of the renewable component to form an on-spec blended jet fuel composition.

Roofing asphalt compositions containing hydrocracked pitch

Abstract: The present invention relates to a roofing trade asphalt composition which comprises a blend of (a) a petroleum pitch obtained as a residue in the hydro-cracking of hydrocarbon oils and (b) as a diluent therefor preferably a paving grade asphalt cement of 150-200 penetration.

Servo valve erosion inhibited aircraft hydraulic fluids

Phosphate ester based functional fluids containing novel anti-erosion additives provides enhanced results in erosion control.

Lubricant compositions with improved properties

A lubricant composition for providing friction reducing properties and VI and solvency improving properties in a lubricant system is disclosed. The lubricant composition comprises a major amount of at least one base oil and an effective amount of a high viscosity polyester additive having a kinematic viscosity at 100°C of at least about 2,500 mm 2 /s.

Method for haze mitigation and filterability improvement for gas-to-liquid hydroisomerized base stocks

Functional fluids with servo valve erosion resistance

A method for enabling phosphate ester hydraulic fluids to meet the Boeing.TM. test BMS 3-11L for erosion which comprises adding to the phosphate ester hydraulic fluid from about 0.01 wt% to 0.5 wt% based on the weight of the phosphate esters of potassium perfluorobutane sulfonate.

Dye-stable biofuel blend compositions

The disclosure relates to a dye-stable furnace fuel composition comprising: about 10 to 99 parts by volume of a mineral oil component having an effective boiling range from about 160°C to about 380°C; about 1 to 90 parts by volume of a biocomponent fuel component comprising C 1 -C5 alkyl esterified fatty acids from renewable sources; one or more azo dye components present in an amount from about 0.5 mg/kg to about 5 mg/kg, relative to the total fuel composition; and a tert-butyl-functionalized hydroquinone antioxidant component present in an amount of at least about 50 vppm, relative to the fuel composition, wherein the fuel composition exhibits an increased dye stability, relative to a fuel composition having similar mineral oil and biocomponent fuel components and identical azo dye component(s), but having a different or no antioxidant component.

Stable alkoxylated fatty acid alkyl esters from transesterification-alkoxylation of vegetable oils

Alkoxylated fatty acid alkyl esters are produced from a bio-component feed, preferably containing triglycerides. The triglycerides can be reacted with an alcohol in the presence of an acidic catalyst to form alkoxylated fatty acid alkyl esters, which can provide improved low temperature properties and/or improved oxidative stability in petrochemical products, relative to non-alkoxylated versions of the fatty acid alkyl esters.

Distillate fuel composition containing combination of silver corrosion inhibitors

A distillate fuel composition for reducing silver corrosion in two-cycle internal combustion engines which comprises motor gasoline, a lubricating oil basestock and a combination of a 2,5-dihydrocarbyldithio-1,3,4-thiadiazole of the formula

Method for enhancing the oxidation and nitration resistance of natural gas engine oil compositions and such compositions

- 60 -The resistance to oxidation and nitration of a gas engine oil is improved by the use of a combination of a hindered phenolic antioxidant and an (alkylated) phenyl-α naphthylamine antioxidant. The additional use of an organo molybdenum compound further enhances the resistance to oxidation and nitration.

Method for reducing haze in gas-to-liquid base stocks

Removal of light fluoroalkanes from hydrocarbon streams

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C3 to C5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

Dye-stable biofuel blend compositions

The disclosure relates to a dye-stable furnace fuel composition comprising: about 10 to 99 parts by volume of a mineral oil component having an effective boiling range from about 160°C to about 380°C; about 1 to 90 parts by volume of a biocomponent fuel component comprising C 1 -C5 alkyl esterified fatty acids from renewable sources; one or more azo dye components present in an amount from about 0.5 mg/kg to about 5 mg/kg, relative to the total fuel composition; and a tert-butyl-functionalized hydroquinone antioxidant component present in an amount of at least about 50 vppm, relative to the fuel composition, wherein the fuel composition exhibits an increased dye stability, relative to a fuel composition having similar mineral oil and biocomponent fuel components and identical azo dye component(s), but having a different or no antioxidant component.

Lubricant compositions having improved low temperature properties

The pour points of lubricating compositions are significantly improved when Group III and GTL base stocks are formulated with alkyl alkaline earth metal detergents. In a preferred embodiment, calcium alkyl salicylate detergents are used.

Lubricant compositions having improved low temperature properties

The pour points of lubricating compositions are significantly improved when Group III and GTL base stocks are formulated with alkyl alkaline earth metal detergents. In a preferred embodiment, calcium alkyl salicylate detergents are used.

Method for improving the corrosion inhibiting properties of lubricant compositions

Lubricating oils of improved initial and long term metal corrosion inhibiting properties comprises a base stock containing one or more hydrodewaxate or hydroisomerate base stock(s) and/or base oil(s), GTL base stock(s) and/or base oil(s), or mixtures thereof, preferably GTL base stock(s) and/or base oil(s), boiling in the lubricating oil boiling range and an additive amount of an anti-corrosion additive.

Removal of light fluoroalkanes from hydrocarbon streams

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C3 to C5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

Process for removing elemental sulfur from fluids

A process for removing elemental sulfur from fluids such as refined petroleum products transported through pipelines for the transportation of sour hydrocarbon streams. The fluids are contacted with an aqueous solution containing caustic, sulfide and optionally elemental sulfur to produce an aqueous layer containing metal polysulfides and a clear fluid layer having a reduced elemental sulfur level. Organo mercaptans may also be mixed with the fluid to accelerate the removal of elemental sulfur.

Aviation phosphate ester functional fluids with enhanced acid scavenging properties

The present invention is an aviation phosphate ester functional fluid of enhanced acid scavenging properties comprising a phosphate ester base oil and a mixture of aliphatic epoxide and carbodiimide acid scavengers.

Method for haze mitigation and filterability improvement for gas-to-liquid hydroisomerized base stocks

Haze formation in heavy Gas-to-Liquids (GTL) base stock is mitigated by the addition to said GTL base stock of one or more particular additives.

Biodiesel and biodiesel blend fuels

Method for improving the oxidation stability of biodiesel as measured by the rancimat test

The oxidation stability of biodiesel fuel or mixtures of biodiesel fuel and conventional diesel fuel is improved by at least 50% by the addition to such fuel of at least 250 mg of N-M (C 1 -C 5 ) alkyl cyclohexyl amine per liter of the biodiesel fuel or per liter of the biodiesel fuel component in the mixture of biodiesel fuel and conventional diesel fuel as compared to the oxidation stability of said fuel without such additive.

Method for haze mitigation and filterability improvement for gas-to-liquid hydroisomerized base stocks

Haze formation in heavy Gas-to-Liquids (GTL) base stock is mitigated by the addition to said GTL base stock of one or more particular additives, for instance polymer II which is a mixture of (a) wherein R8 is C10 to C12 alkyl and mixtures thereof, x is oxygen or nitrogen and s+t together are sufficient to produce the co-polymer having a weight average molecular weight of 800 to 1000, and (b) <BIG> wherein R9 is C12 to C14 alkyl and mixtures thereof, X is oxygen or nitrogen wherein at least some percentage of x is nitrogen, and u and v together are sufficient to produce the copolymer having a weight average molecular weight of 7000 to 8,000 and (a) and (b) are in a ratio of about 60:40.

Functional fluids with servo valve erosion resistance

Phosphate ester based functional fluids containing novel anti-erosion additives provides enhanced results in erosion control.

Process for removing elemental sulfur from fluids

The present invention provides a process for removing elemental sulfur from fluids such as refined petroleum products transported through pipelines for the transportation of sour hydrocarbon streams. The sulfur-containing fluids are mixed with an inorganic caustic material, an alkyl alcohol and an organo mercaptan or sulfide compound capable of reacting with sulfur to form a fluid-insoluble polysulfide salt reaction product at ambient reaction temperatures. The treated fluid is then contacted with an adsorbent or filtered to remove the insoluble salt leaving a product of very low residual sulfur content.

Removal of light fluoroalkanes from hydrocarbon streams

The removal of fluoroalkanes from fluoroalkane-containing hydrocarbon streams, preferably C 3 to C 5 hydrocarbon streams. The fluoroalkane-containing hydrocarbon stream is contacted with an adsorbent containing a strong acid function, preferably a silica gel or a strong cation ion-exchange resin having sulfonic acid functionality.

Road asphalt compositions containing visbreaking residues

Abstract: A road asphalt composition having a penetration at 25°C in the range of 85 to 100 is made by blending to-gether: (a) a pitch having an initial boiling point of at least 520°C obtained as a residue in the visbreaking of crude oil, and (b) a distillation residue having a penetration at 25°C in the range of 150 to 500 obtained in the distillation of crude oil.

Phosphate ester hydraulic fluids with improved properties

Process for Removing Elemental Sulfur from Fluids

A process for removing elemental sulfur from fluids such as refined petroleum products transported through pipelines for the transportation of sour hydrocarbon streams. The fluids are contacted with an aqueous solution containing caustic, an aliphatic mercaptan and optionally a sulfide to produce an aqueous layer containing metal polysulfides and a clear fluid layer having a reduced elemental sulfur level.

Method for enhancing the oxidation and nitration resistance of natural gas engine oil compositions and such compositions

The resistance to oxidation and nitration of a gas engine oil is improved by the use of a combination of a hindered phenolic antioxidant and an (alkylated) phenyl-.alpha.-naphthylamine antioxidant. The additional use of an organo molybdenum compound further enhances the resistance to oxidation and nitration.

Synthetic phenolic ether lubricant base stocks and lubricating oils comprising such base stocks mixed with co-base stocks and/or additives

High performance base stock, base stock blending component and performance additive comprising bis(hydroxyphenyl)alkyl ethers. Such ethers exhibit superior thermal and oxidation stability, low volatility and superior low temperature properties.

Blending of dewaxed biofuels with mineral-based kero(jet) distillate cuts to provide on-spec jet fuels

The present invention describes a method of making a jet fuel composition comprising: providing a mineral-based kero/jet-type distillate component having certain enumerated physico-chemical properties, typically an off-spec jet fuel; providing a deoxygenated and dewaxed renewable component derived from triglycerides and/or fatty acids and having an isoparaffin to normal paraffin ratio from about 2: 1 to about 6: 1 and an aromatics content less than about 1 vol%; and blending from about 75 vol% to about 97 vol% of the mineral-based distillate components with from about 3 vol% to about 25 vol% of the renewable component to form an on-spec blended jet fuel composition.

Method for improving the corrosion inhibiting properties of lubricant compositions

Lubricating oils of improved initial and long term metal corrosion inhibiting properties comprises a base stock containing one or more hydrodewaxate or hydroisomerate base stock(s) and/or base oil(s), GTL base stock(s) and/or base oil(s), or mixtures thereof, preferably GTL base stock(s) and/or base oil(s), boiling in the lubricating oil boiling range and an additive amount of an anti-corrosion additive.

Process for the separation of sulphur compounds in bitumen, heavy oil and synthetic fuel distillates

Abstract A process is described for separating and identifying organic sulphur compounds in petroleum distillates which comprises subjecting an aromatic-containing fraction to chromatography in a dual packed silica gel-alumina column to obtain a sulphur-containing eluate and analyzing the sulphur-containing eluate by gas chromatography and mass spectrometry. The aromatic-containing fraction is usually a naphtha fraction or a light gas oil fraction, with the gas oil fraction being subjected to chromatography on a silica gel column to obtain an aromatic fraction which is then subjected to the chromatography in the above silica gel-alumina column.

Lubricating oil composition

A lubricating composition is provided that has good elastomer compatibility and friction-reduced properties which comprises a base oil having a viscosity index (VI) greater than about 80, a kinematic viscosity (Kv) of 100 °C of from about 2 mm2/s, containing 90 wt% or more saturates, having less than about 5 ppm sulfur, and wherein the base oil is derived from a waxy feed; and a minor amount of (a) a polyol ester of an aliphatic carboxylic acid having 12 to 24 carbon atoms and (b) an oil soluble or oil dispersible molybdenum compound.

Synthetic phenolic ether lubricant base stocks and lubricating oils comprising such base stocks mixed with co-base stocks and/or additives

High performance base stock, base stock blending component and performance additive comprising bis(hydroxyphenyl)alkyl ethers. Such ethers exhibit superior thermal and oxidation stability, low volatility and superior low temperature properties.

Flame retardant lubricating oil compositions

Lubricating oil compositions having low flammability properties and good low temperatures suitable for use as hydraulic fluids comprise a major amount of GTL base oil, optionally a minor amount of polyolphaolefins, an additive amount of about 5 to 30 wt% of dicarboxylic acid ester and minor amount of a pour-point depressant.

Flame retardant lubricating oil compositions

Lubricating oil compositions having low flammability properties and good low temperatures suitable for use as hy-draulic fluids comprise a major amount of GTL base oil, optionally a minor amount of polyolphaolefins, an additive amount of about 5 to 30 wt% of dicarboxylic acid ester and minor amount of a pour-point depressant.

Aviation piston engine oil compositions

Provided are aviation piston engine oil compositions. In one form, the aviation piston engine oil includes (i) a base oil including: (a) one or more GTL base stock(s) and/or base oil(s); (b) one or more mineral oils; (c) polyalpha olefin; (ii) an effective amount of additive; (iii) both an anti-wear additive and an anti-corrosion additive, wherein the anti-wear additive comprises tricresyl phosphate and the anti-corrosion additive comprises tolytriazole; and (iv) wherein the humidity cabinet rust test rating (ASTM D 1748 at 120°F, 100% relative humidity for 72 hours) of said oil is about 0.5 or less.

Stable alkoxylated fatty acid alkyl esters from transesterification-alkoxylation of vegetable oils

Alkoxylated fatty acid alkyl esters are produced from a bio-component feed, preferably containing triglycerides. The triglycerides can be reacted with an alcohol in the presence of an acidic catalyst to form alkoxylated fatty acid alkyl esters, which can provide improved low temperature properties and/or improved oxidative stability in petrochemical products, relative to non-alkoxylated versions of the fatty acid alkyl esters.

Clarification of black water produced during recovery of bitumens and heavy oils

Abstract: Hot water is an important component in the recovery or extraction of bitumen and heavy oils. This hot water tends to form emulsions with the oil and when these emulsions are broken by demulsifiers and the oil separates, the remain-ing water retains a black color and cannot be recycled in the process. The black color has been most difficult to remove, but it has now been found that it can quite easily be removed by certain selected adsorbents. These include high ash coal rejects, fly ash from coking gas and red mud.

Fuel economy lubricant compositions

The present invention provides a lubricating composition comprising a major amount of a GTL lubricating base oil and a friction modifier consisting essentially of oil soluble fatty acid esters of a polyol. Such lubricating compositions have reductions in their friction coefficients that are greater than similar compositions formulated with Group III or PAO base oils.

Lubricant composition with low deposition tendency

Lubricant base oil blends and finished lubricating compositions having low deposition tendency are provided. The base oil blends consist essentially of about 20 wt % to about 80 wt %, based on the total weight of the blend, of an F-T Group III base oil having less than 5 wt % cycloparaffins, the balance of the blend being a Group III base oil having at least 35 wt % cycloparaffins. The finished lubricating compositions comprise a major amount of the base oil blend of the invention and at least one engine oil additive.

Method for improving the oxidation stability of biodiesel as measured by the rancimat test

The oxidation stability of biodiesel fuel or mixtures of biodiesel fuel and conventional diesel fuel is improved by at least 50% by the addition to such fuel of at least 250 mg of N-M (C1-C5) alkyl cyclohexyl amine per liter of the biodiesel fuel or per liter of the biodiesel fuel component in the mixture of biodiesel fuel and conventional diesel fuel as compared to the oxidation stability of said fuel without such additive.

Process for removing elemental sulfur from fluids

A process for removing elemental sulfur from fluids such as refined petroleum products transported through pipelines for the transportation of sour hydrocarbon streams. The fluids are contacted with an aqueous solution containing caustic, sulfide and optionally elemental sulfur to produce an aqueous layer containing metal polysulfides and a clear fluid layer having a reduced elemental sulfur level. Organo mercaptans may also be mixed with the fluid to accelerate the removal of elemental sulfur.

Distillate fuel composition containing combination of copper corrosion inhibitors

A distillate fuel composition for reducing copper corrosion in fuel delivery systems and internal combustion engines which comprises a synergistic combination of (a) a 2,5-dihydrocarbyldithio-1,3,4-thiadiazole of the formula

Lubricant composition with improved electrical properties

LUBRICANT COMPOSITION WITH IMPROVED ELECTRICAL PROPERTIES A lubricant composition for improving electrical properties in lubricant systems to reduce the formation of sludge and varnish is disclosed. The lubricant composition comprises a base oil and an effective amount of antistatic additive to provide the composition with an electrical conductivity of at least about 50pS/m at 250C and a dielectric strength of at least 300 V/mil.

Lubricant composition with improved electrical properties

LUBRICANT COMPOSITION WITH IMPROVED ELECTRICAL PROPERTIESA lubricant composition for improving electrical properties in lubricant systems to reduce the formation of sludge and varnish is disclosed. The lubricant composition comprises a base oil and an effective amount of antistatic additive to provide the composition with an electrical conductivity of at least about 50pS/m at 25°C and a dielectric strength of at least 300 V/mil.Figure 1

A method for reducing deposit formation in lubricant compositions

The deposit forming tendency of Group II, III and IV lubricating base oils is reduced by the use of synergistic mixtures of diphenylamines or phenyl-α- naphthylamines with triarylphosphites.

Hydrocarbon fluids with improved pour point

- 25 -HYDROCARBON FLUIDS WITH IMPROVED POUR POINT Abstract The addition of alkyl salicylic acids and esters represented by Formula I (I) where RI= H or C12 to C22 linear alkyl group; R2 = H or linear C12 to C22 carbonyl group; and R3 = linear C12 to C22 alkyl group reduces the pour point of a hydrocarbon base oil. Thus, both a method for reducing the pour point of hydrocarbon oils and lubricating composition containing pour point reducing salicylates are provided. The hydrocarbon base oil in such method and composition preferably is a Group III base oil.

Hydrocarbon fluids with improved pour point

The addition of alkyl salicylic acids and esters represented by Formula I (I) where R1= H or C12 to C22 linear alkyl group; R2 = H or linear C12 to C22 carbonyl group; and R3 = linear C12 to C22 alkyl group reduces the pour point of a hydrocarbon base oil. Thus, both a method for reducing the pour point of hydrocarbon oils and lubricating composition containing pour point reducing salicylates are provided. The hydrocarbon base oil in such method and composition preferably is a Group III base oil.