Chevron U.s.a. Inc.

Chevron Chemical Company LLC

Chevron Phillips Chemical Company LP

Cherron U.s.a. Inc.

Chevron Research & Technology Co., a Div. of Chevron U.s.a. Inc.

William James Cannella

Robert A Innes

Bernard F Mulaskey

Alexander E Kuperman

Cong-Yan Chen

David C Kramer

John V Heyse

Jaime R Lopez

Daniel P Hagewiesche

Vittorio Manente

Robert L Hise

Steven E Trumbull

Amir Gamal Maria

Janine Lichtenberger

Stephen Joseph Miller

William L Schinski

Theodorus Ludovicus Michael Maesen

Michael Sean Driver

Curtis Lee Munson

Donald Henry Mohr

David R Johnson

Christopher A Simmons

John E Dec

Stephen K Lee

Gregory Hemighaus

Paul A Allinson

Paul Anthony Allinson

Ronald K Meeker

Richard J Peyla

Chunsheng Ji

Thoedorus Ludovicus Maesen

A method of reducing nitrogen oxide emissions, the method comprising

Method of reducing nitrogen oxide emissions

A fuel composition having a boiling range of between 95 to 440 degrees Fahrenheit containing (a) a saturates content below 55 vol %; (b) a RON of from about 88 to about 91; (c) an olefins content of from about 0 to about 5 vol %; (d) an aromatics content of from about 32 to about 40 vol %; (e) an ethanol content of from about 8 to about 16 vol %; (f) an octane sensitivity of from about 8 to about 11; and the fuel composition is used in an HCCI engine.

Fuel composition

Disclosed herein is a method for increasing the maximum operating speed of an internal combustion engine operated in a low temperature combustion ignition mode, the method comprising operating the engine with a fuel composition comprising (a) gasoline having a Research Octane Number (RON) greater than 85 and (b) one or more cetane improvers.

Method for increasing the maximum operating speed of an internal combustion engine operated in a low temperature combustion mode

Disclosed herein is a method for increasing the high load (knock) limit of an internal combustion engine operated in a low temperature combustion ignition mode, the method comprising operating the engine with a fuel composition comprising (a) gasoline having a Research Octane Number (RON) greater than 85 and (b) one or more cetane improvers.

Method for increasing the high load (knock) limit of an internal combustion engine operated in a low temperature combustion mode

A fuel composition having a boiling range of between 95 to 440 degrees Fahrenheit wherein the fuel composition has (a) a total sum of n-paraffins and naphthenes content of at least 22 volume percent and (b) a RON of about 93 or less, wherein the fuel is employed in an advanced combustion engine.

A fuel composition having a boiling range of between 95 to 440 degrees Fahrenheit wherein the fuel composition has (a) a total sum of n-paraffins and naphthenes content of at least 7 volume percent.

A hydroconversion process comprises contacting a feedstock comprising renewable materials under hydroprocessing conditions with a promoted catalyst selected from a self-supported catalyst, a supported catalyst and combinations thereof, wherein the reaction conditions can be tailored to directly convert the renewable feedstock to the desired product(s) including fatty alcohols, esters, normal paraffins, or combinations thereof. The catalyst comprising at least a Group VIB metal selected from molybdenum and tungsten, a Group VIII metal selected from cobalt and nickel to convert the feedstock into any of fatty alcohols, esters, and normal paraffins. In some embodiments, the process further comprising additional steps to generate various desirable products, including &#x3b1;-olefins (or PAO, by dehydrating the fatty alcohol products), lubricants and bright stocks (from the oligomerizing of the PAO), and Group 3 lubricants (from co-oligomerizing of the PAO with some short chain olefins).

Hydroconversion of renewable feedstocks

Disclosed herein are jet fuel compositions containing (a) a total aromatics content of from 2 vol. % to no more than about 25 vol. %; (b) a net heat of combustion of at least about 125,000 Btu/gal; (c) a concentration of less than about 5 vol. % of hydrocarbons having a boiling point greater than or equal to about 550&#xb0; F., as determined by ASTM D 2887; and (d) a Jet Fuel Thermal Oxidation Test (JFTOT) thermal stability characterized by a filter pressure drop of no more than 25 mm Hg, a breakpoint temperature greater than or equal to about 300&#xb0; C., and an overall tube deposit rating less than 3, as determined by ASTM D 3241. Methods for their preparation are also disclosed.

Jet fuels having superior thermal stability

The disclosure describes a high energy density jet fuel composition, having a smoke point about 18 mm as determined by ASTM D1322 and a thermal stability of no more than 25 mm Hg as determined by ASTM D 3241, and a method for making a jet fuel composition, wherein the net heat of combustion is determined by the aromatics content, cycloparaffins content, and normal plus or iso paraffins content in the jet fuel composition.

High energy distillate fuel composition and method of making the same

A hydrocarbon conversion process comprises contacting a renewable feedstock under hydroprocessing conditions with a bulk catalyst to form oleochemicals such as fatty alcohols, esters, and normal paraffins. Advantageously, the reaction conditions can be selected to directly convert the renewable feedstock to the desired product(s).

A diesel fuel composition comprising a (1) sulfur content of less than 10 ppm; (2) a flash point of greater than 50&#xb0; C.; (3) a UV absorbance, A, of less than 1.5 as determined by the formula comprising+10()

Diesel composition and method of making the same

An unleaded aviation fuel composition, containing at least one saturated branched aliphatic hydrocarbon having a carbon number in the Cto Crange, further contains sufficient m-xylene to yield a fuel having a MON of at least 98. A process is further provided for producing the unleaded aviation fuel composition by admixing a m-xylene enriched liquid with alkylate.

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Orinda, CA, United States of America

William James Cannella