Chevron U.s.a. Inc.

Arco Chemical Technology, L.p.

Exxonmobil Chemical Patents Inc.

Catalytica, Inc.

Rutgers, the State University of New Jersey

Catalytica Associates, Inc.

Exxonmobil Research and Engineering Company

Exxonmobil Oil Corporation

University of Oregon

Robert James Saxton

John G Zajacek

Kandaswamy Jothimurugesan

Charles Kibby

Tapan Kumar Das

Guy L Crocco

Stacey Ian Zones

Jere D Fellmann

Oleg Mironov

Alan Stuart Goldman

Hailian Li

Paul R Wentrcek

Mark T Muraoka

Dan Xie

Machteld Maria Mertens

Guang Cao

Anil S Guram

Jeffrey C Yoder

Dennis John O'Rear

Stephen Harold Brown

William Alois Weber

Janis Vasilevskis

John H Grate

David R Hamm

Robert A Crane, Jr

Jacques C De Deken

Akshai Kumar

Lyubov S Kipnis

Karl Gottlieb Strohmaier

Allen Wayne Burton

Bhupender S Minhas

Robert Timothy Stibrany

Eric G Derouane

Wilfred P Shum

Kandaswany Jothimurugesan

Paul Tung

Kanthi S Wijesekera

David J Edlund

Haven S Kesling, Jr

Allen W Burton, Jr

Mobae Afeworki

Edward T Shawl

Wilfried Jozef Mortier

Richard B Hall

Matu J Shah

Anthony F Volpe

Georges M K Mathys

Helge Jaensch

An Verberckmoes

Thomas Herman Colle

Marc H Anthonis

Karin Yaccato

Antonie Jan Bons

Geraldine Tosin

Chris Esther Kliewer

Allison Amy Evans

Michael R Chuba

Jere D Fellman

Richard G Finke

Sourav Saha

Michelle Hart

Pascale Massiani

Shannan J Downey

Kenneth A Klingman

Thomas H Colle

Karin Yaccatu

Disclosed herein are processes for tandem alkene dehydrogenation/alkene dimerization using an iridium pincer complex catalyst on a support comprising magnesium silicates (e.g., Florisil&#xae;). The reaction process comprises providing an iridium pincer complex bound to a solid support comprising magnesium silicates; providing a gaseous alkane feedstock comprising at least one alkane; and contacting the gaseous alkane feedstock with the iridium pincer complex bound to the solid support in the presence of a hydrogen acceptor to form dimerized alkenes. The processes disclosed herein can accomplish facile, low-temperature tandem transfer dehydrogenation of alkanes and dimerization of alkenes with unprecedented TONs at a reasonable rate of conversion.

Alkane-alkene coupling via tandem alkane-dehydrogenation/alkene-dimerization catalyzed by pincer iridium catalyst heterogenized on solid supports

Provided is a Group 9 novel metal catalyst complex further comprising a ketone-containing cocatalyst. The metal catalyst complex is useful in generating olefins from alkanes with great efficiency. In one embodiment, provided is an iridium catalyst complex useful in the dehydrogenation of alkanes comprising a ketone-containing cocatalyst and iridium complexed with a tridentate ligand. Also provided is a novel dehydrogenation method which utilizes the catalyst composition. In other embodiments, a novel process for preparing oligomers from alkanes utilizing the catalyst composition is provided.

Catalyst complex and use thereof in alkane oligomerization

Disclosed herein are processes for dehydrogenation of an alkane to an alkene using an iridium pincer complex and iridium pincer complexes. In the dehydrogenation reactions, hydrogen that is co-formed during the process must be removed for the chemical reaction to proceed and to prevent the excess hydrogen from poisoning the catalyst. In one embodiment the process comprises providing an alkane feedstock comprising at least one alkane and contacting the alkane with an iridium pincer complex in the presence of a hydrogen acceptor selected from the group consisting of ethylene, propene, or mixtures to form an alkene product. The processes disclosed herein can accomplish facile, low-temperature transfer dehydrogenation of alkanes with unprecedented selectivities and TONs at a reasonable rate of conversion.

Iridium pincer complex for alkane dehydrogenation process

Disclosed herein are processes for dehydrogenation of an alkane to an alkene using an iridium pincer complex. In the dehydrogenation reactions, hydrogen that is co-formed during the process must be removed for the chemical reaction to proceed and to prevent the excess hydrogen from poisoning the catalyst. In one embodiment the process comprises providing an alkane feedstock comprising at least one alkane and contacting the alkane with an iridium pincer complex in the presence of a hydrogen acceptor selected from the group consisting of ethylene, propene, or mixtures to form an alkene product. The processes disclosed herein can accomplish facile, low-temperature transfer dehydrogenation of alkanes with unprecedented selectivities and TONs at a reasonable rate of conversion.

Alkane dehydrogenation process

A method for making a new crystalline molecular sieve designated SSZ-27 is disclosed. SSZ-27 is synthesized using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a structure directing agent.

Method for making molecular sieve SSZ-27

A new crystalline molecular sieve designated SSZ-27 is disclosed. SSZ-27 is synthesized using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a structure directing agent.

Molecular sieve SSZ-27

Small crystal LTL framework type zeolites, characterized as polycrystalline aggregates, each of the aggregates comprising a plurality of spherical or cube-like crystallites and wherein each crystallite has an average crystallite size of from 10 to 50 nm, are disclosed. Such zeolites can be prepared by hydrothermal conversion of FAU framework type zeolites at low HO/SiOmole ratios.

Small crystal LTL framework type zeolites

The present invention provides an olefin oligomerization process comprising the steps of: i) reducing the level of acetonitrile in an olefin feed by contacting the feed with a non-zeolitic metal oxide; and ii) contacting the olefin feed with reduced level of acetonitrile with an olefin oligomerization catalyst under conditions suitable to oligomerize the olefin.

Olefin oligomerization process

Uses for a new crystalline molecular sieve designated SSZ-27 are disclosed. SSZ-27 is synthesized using a hexamethyl [4.3.3.0] propellane-8,11-diammonium cation as a structure directing agent.

Processes using molecular sieve SSZ-27

A process and system are described for the processing of gas associated with crude oil production, i.e. associated gas. A separation complex is used to separate produced fluids produced from a hydrocarbon reservoir into crude oil, liquefied petroleum gas, water, and natural gas. At least a portion of the natural gas is converted into synthesis gas in a synthesis gas generator. A combination of a synthesis gas conversion catalysts and hydroconversion catalysts are used in a synthesis gas reactor to convert the synthesis gas into a liquid effluent stream containing liquefied petroleum gas and a synthetic crude oil. The liquefied petroleum gas and synthetic crude oil from the synthesis gas reactor is sent to the separation complex. Liquefied petroleum gas is separated both from the synthetic crude oil and a natural crude oil obtained from the produced fluids. The system and process permits synthetic crude oil to be blended with the natural crude oil producing a blended stabilized crude oil having 2 wt % or more of the synthetic crude oil and with a pour point of 60&#xb0; C. or less. Use of a common facility for separation operations on the natural crude oil and synthetic crude oil thus reduces capital costs and allows converted associated gases to be shipped with the natural crude oil on a conventional crude oil tanker.

System for blending synthetic and natural crude oils derived from offshore produced fluids

Disclosed are hybrid Fischer-Tropsch catalysts containing cobalt deposited on hybrid supports. The hybrid supports contain an acidic zeolite component and a silica-containing material. It has been found that the use of the hybrid Fischer-Tropsch catalysts in synthesis gas conversion reactions results in high Cproductivity, high CO conversion rates and low olefin formation.

Hybrid fischer-tropsch catalysts

Disclosed are a process and a system for synthesis gas conversion. The process includes contacting a synthesis gas feed of hydrogen and carbon monoxide having a H/CO ratio from 0.5 to 3.0 with a hybrid catalyst of particles having a particle size from 50 to 500 &#x3bc;m and having at least one zeolite and a Fischer-Tropsch component wherein the ratio of zeolite to Fischer-Tropsch component is from 0.1:1 to 30:1 and the hybrid catalyst includes from 0.5 to 40 wt % Fischer-Tropsch component. The process is conducted in a compact heat exchange reactor having a set of reaction passages disposed between a synthesis gas feed header and a products header and a set of coolant passages disposed between a coolant inlet header and a coolant outlet header. The set of coolant passages conducts a coolant therethrough, and the set of reaction passages contains the hybrid catalyst therein and conducts synthesis gas and reaction products therethrough. The process is conducted at a temperature from 200 to 2800&#xb0; C., a pressure from 5 to 40 atmospheres, a recycle ratio from 1 to 3, and a gaseous hourly space velocity less than 20,000 volumes of gas per volume of catalyst per hour. The effluent produced includes a hydrocarbon product containing at least 50 wt % Chydrocarbons and less than 5 wt % Chydrocarbons at a Cproductivity from 0.05 to 2 g/g/h.

Processes and systems for synthesis gas conversion using a hybrid fischer-tropsch catalyst in a compact heat exchange reactor

A process and system are described for producing a synthetic crude oil by contacting a synthesis gas with a combination of a synthesis gas conversion catalyst and a hydroconversion catalyst in a synthesis gas reactor. The synthesis gas can be obtained from gas associated with crude oil production, i.e., associated gas, in a synthesis gas generator. The synthetic crude oil can be blended with a natural crude oil to produce a blended stabilized crude oil having 2 wt % or more of the synthetic crude oil. The resulting blended stabilized crude oil has improved flow characteristics including a pour point of 30&#xb0; C. or less.

Process and system for blending synthetic and natural crude oils and blends made thereby

Hybrid fischer-tropsch catalysts and processes for use thereof

Growing community of inventors

Pleasanton, CA, United States of America

Robert James Saxton