Exxonmobil Chemical Patents Inc.

Mobil Oil Corporation

Exxonmobil Research and Engineering Company

Exxon Research and Engineering Company

Exxonmobil Oil Corporation

John Scott Buchanan

Jihad Mohammed Dakka

Jane C Cheng

Paul F Keusenkothen

Gary David Mohr

David Lawrence Stern

Tan-Jen Chen

Jon E Stanat

Xiaobing Feng

Robert A Crane

James Richardson Lattner

Stephen Harold Brown

Larry Lee Iaccino

Mayank Shekhar

Francisco Manuel Benitez

Jose G Santiesteban

Doron Levin

Berne K Stober

Frank Hershkowitz

Shifang Luke Luo

Gerald J Teitman

Samia Ilias

Harry William Deckman

Terry Eugene Helton

Stephen Zushma

Christine Nicole Elia

Jeffrey William Frederick

John F Walzer, Jr

Lorenzo C DeCaul

Anastasios I Skoulidas

Jane Chi-Ya Cheng

Mohsen N Harandi

James C Vartuli

Teng Xu

Michel A Daage

Hye-Kyung Cho Timken

Stephen John McCarthy

Edmund John Mozeleski

David L Johnson

Lei Zhang

James N McCoy

Jeevan Sahib Abichandani

Robert A Ware

William Alois Weber

Mark F Mathias

Brenda Anne Raich

John Slocum Coleman

Timothy D Shaffer

Rohit Vijay

Hans J Schoennagel

Brett Thomas Loveless

Seth McConkie Washburn

Jon E R Stanat

Stuart Leon Soled

Margaret M Wu

Wenyih Frank Lai

Kun Wang

Arthur W Chester

Wieslaw J Roth

Tsoung-Yuan Yan

Werner O Haag

Guang Cao

Luc R M Martens

Stephen M Davis

Michael C Clark

Jay L Reimers

Charles Morris Smith

Robert G Tinger

William Ernest Lewis

Matthew J Vincent

John Di-Yi Ou

David T Ferrughelli

Mark Paul Hagemeister

Dominick N Mazzone

Klaus W Schatz

Frederick J Krambeck

Michel Molinier

Daria N Lissy

Roger A Morrison

Hye Kyung Timken

Steven E Silverberg

Timothy Daniel Shaffer

James Peter Stokes

Jaime A Valencia

Christine Esther Kliewer

Lillian A Rankel

Michael A Risch

Frank C Wang

Philip Andrew Ruziska

Sadi Mizrahi

Rustom Merwan Billimoria

Brian Erik Henry

Nikolaos Soultanidis

William G Borghard

Anthony S Fung

Charles M Sorensen

Jennifer Schaefer Feeley

John L Robbins

Jeffrey T Elks

Jon Edmond Randolph Stanat

The invention relates to catalysts and their use in processes for dehydrocyclization of light paraffinic hydrocarbon feedstock to higher-value hydrocarbon, such as aromatic hydrocarbon, to dehydrocyclization catalysts useful in such processes, and to the methods of making such catalysts. One of more of the dehydrocyclization catalysts comprising a crystalline aluminosilicate zeolite having a constraint index of less than or equal to about 12, at least one Group 3 to Group 13 metal of the IUPAC Periodic Table and phosphorous.

Catalyst and its use in dehydrocyclization processes

The invention relates to catalytic aromatization, e.g., for the conversion of non-aromatic hydrocarbon to higher-value aromatic hydrocarbon, to catalysts useful for such aromatization, to methods for making such catalysts, and to systems and apparatus for carrying out aromatization in the presence of the catalyst.

Catalytic aromatization

Systems and methods are provided for pretreatment and upgrading of crude bio oils for further processing and/or use as fuel products. Crude bio oils can be treated by one or more of flash fractionation and thermal cracking to generate fractions suitable for further processing, such as further hydroprocessing. Blending of crude bio oil fractions with mineral feeds can also be used to reduce metals contents to levels suitable for refinery processing.

Crude bio oil pretreatment and upgrading

The invention relates to hydrocarbon dehydrocyclization to produce products such as aromatic hydrocarbon, to equipment and materials useful for dehydrocyclization, to processes for carrying out dehydrocyclization, and to the use of dehydrocyclization for, e.g., natural gas upgrading. The dehydrocyclization is carried out in a catalytic reaction zone of a reverse-flow reactor.

Hydrocarbon dehydrocyclization

The invention relates to the hydrocarbon upgrading to produce aromatic hydrocarbon, to equipment and materials useful in such upgrading, and to the use of such upgrading for, e.g., producing aromatic hydrocarbon natural gas. The upgrading can be carried out in the presence of a dehydrocyclization catalyst comprising at least one dehydrogenation component and at least one molecular sieve.

Hydrocarbon conversion

The invention relates to the conversion of light hydrocarbon to higher-value hydrocarbon, such as aromatic hydrocarbon, to equipment and materials useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading. The conversion can be carried out in two stages, with each stage containing a dehydrocyclization catalyst comprising at least one dehydrogenation component and at least one molecular sieve.

The invention relates to the production of aromatic hydrocarbon by the conversion of a feed comprising saturated hydrocarbon. At least a portion of the saturated hydrocarbon is converted to olefinic hydrocarbon. Aromatic hydrocarbon is produced from at least a portion of the olefinic hydrocarbon using at least one dehydrocyclization catalyst comprising dehydrogenation and molecular sieve components.

Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.

Production of aromatics from methanol and co-feeds

The invention relates to converting non-aromatic hydrocarbon in the presence of COto produce aromatic hydrocarbon. COmethanation using molecular hydrogen produced during the aromatization increases aromatic hydrocarbon yield. The invention also relates to equipment and materials useful in such upgrading, to processes for carrying out such upgrading, and to the use of such processes for, e.g., natural gas upgrading.

Hydrocarbon dehydrocyclization in the presence of carbon dioxide

The invention relates to a utility fluid, such as a fluid containing aromatic and non-aromatic ringed molecules, useful as a diluent when hydroprocessing pyrolysis tar, such as steam cracker tar. The specified utility fluid comprises &#x2267;10.0 wt % aromatic and non-aromatic ring compounds and each of the following: (a) &#x2267;1.0 wt % of 1.0 ring class compounds; (b) &#x2267;5.0 wt % of 1.5 ring class compounds; (c) &#x2267;5.0 wt % of 2.0 ring class compounds; and (d) &#x2266;0.1 wt % of 5.0 ring class compounds. The invention also relates to methods for producing such a utility fluid and to processes for hydroprocessing pyrolysis tar.

Upgrading hydrocarbon pyrolysis products

A process for oligomerizing isobutene comprises contacting a feedstock comprising isobutene with a catalyst comprising a MCM-22 family molecular sieve under conditions effective to oligomerize the isobutene, wherein said conditions including a temperature from about 45&#xb0; C. to less than 140&#xb0; C. The isobutene may be a component of a hydrocarbon feedstock containing at least one additional Calkene. In certain aspects, isobutene oligomers are separated from a first effluent of the oligomerization to produce a second effluent comprising at least one n-butene. The second effluent can be contacted with an alkylation catalyst to produce sec-butylbenzene.

Selective oligomerization of isobutene

This invention relates to aggregates of small particles of synthetic faujasite zeolite. Small primary particles of zeolite are clustered into larger secondary particles. The observable average width of the primary particles may be 0.3 micron or less and the observable average width of the secondary particles may be 0.8 micron or more. The silica to alumina ratio of the zeolite may be less than 4:1.

Aggregates of small particles of synthetic faujasite zeolite

A reverse flow regenerative reactor having first and second zones, each having first and second ends, the first zone having a plurality of channels capable of separately conveying at least two components of a combustible gas mixture, a gas distributor configured for injecting the components of the combustible gas mixture into first zone, a combustion zone including a selective combustion catalyst disposed at or downstream of the second end of said channels for catalyzing combustion, wherein the second zone is positioned and situated to receive a combusted gas mixture. Processes usefully conducted in the reactor are also disclosed.

Reverse flow reactors for propylene and aromatics production

The invention concerns integration of hydroprocessing and steam cracking. A feed comprising crude or resid-containing fraction thereof is severely hydrotreated and passed to a steam cracker to obtain an olefins product.

Hydrocarbon resid processing

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Lambertville, NJ, United States of America

John Scott Buchanan