Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Exxon Research and Engineering Company

Exxonmobil Engineering & Technology Company

Exxonmobile Chemical Patents Inc.

Other

International Business Machines Corporation

Exxon Chemical Patents, Inc.

Exxonmobil Technology and Engineering Company

Exxonmobile Research and Engineering Company

Wenyih Frank Lai

Stephen John McCarthy

Robert Ellis Kay

Christine Nicole Elia

Doron Levin

Ivy Dawn Johnson

Nicholas S Rollman

Michel A Daage

Chuansheng Bai

Lei Zhang

Shifang Luke Luo

Hari Nair

Krista Marie Prentice

Harry William Deckman

Larry Lee Iaccino

Ajit Bhaskar Dandekar

Edward William Corcoran, Jr

Paul Podsiadlo

Christopher Gordon Oliveri

Joshua I Cutler

Jeremy W Bedard

Scott Jeffrey Weigel

Jane C Cheng

Simon Christopher Weston

David Charles Calabro

Mobae Afeworki

Quanchang Li

Sylvain S Hantzer

Mohan Kalyanaraman

Matthew Scott Ide

Gary Paul Schleicher

Bradley R Fingland

Rohit Vijay

James Alexander McHenry

Anatoly Ilich Kramer

Kiara M Benitez

Paul F Keusenkothen

Terry Eugene Helton

Tan-Jen Chen

Ian A Cody

Guang Cao

Robert G Tinger

Jean Willem Beeckman

John Di-Yi Ou

Johannes Petrus Verduijn

Dominick N Mazzone

Preeti Kamakoti

Bal K Kaul

Matu J Shah

Kathleen M Keville

Tilman W Beutel

Sebastian Carmen Reyes

Darryl Donald Lacy

Brett Thomas Loveless

Joseph E Gatt

Jason Wu

Xiaoying Bao

William Edward Wales

Sina Sartipi

Lothar Ruediger Czarnetzki

James Richardson Lattner

Paul Joseph Berlowitz

Teng Xu

Thomas F Degnan

Kun Wang

John Scott Buchanan

Machteld Maria Mertens

Jose G Santiesteban

Hye-Kyung Cho Timken

David Lawrence Stern

Wieslaw J Roth

William Alois Weber

Hsiang-Ning Sun

Timothy Lee Hilbert

Xiaochun Xu

Alan Anthony Galuska

John Frances Brody

Horst Witzke

Brenda Anne Raich

William Joseph Novak

Himanshu Gupta

Frederick Y Lo

Mayank Shekhar

Charanjit Singh Paur

Brandon J O'Neill

Robert Andrew Migliorini

James William Gleeson

Tracie L Owens

Jennifer Schaefer Feeley

Robert A Crane

Seth McConkie Washburn

William R Gunther

April D Ross

Majosefina Cunningham

Hyung Suk Woo

Christopher M Evans

Anthony Go

Ronald Joseph Cimini

Robert C Lemon

David O Marler

Processes for converting C8 aromatic hydrocarbons. In some embodiments, the process can include feeding a gaseous hydrocarbon feed that can include meta-xylene, ortho-xylene, or both into a conversion zone. The process can also include contacting the gaseous hydrocarbon feed with a catalyst that can include a ZSM-11 zeolite in the conversion zone under conversion conditions to effect isomerization of at least a portion of any meta-xylene, or at least a portion of any ortho-xylene, or both to produce a conversion product rich in para-xylene. In some embodiments, the ZSM-11 zeolite can have an alpha value of 1 to 3,000 and a molar ratio of silica to alumina of from 15 to 200.

Processes for converting C8 aromatic hydrocarbons

Methylparaffins having limited methyl branching may be prepared by contacting at least one linear olefin with hydrogen in the presence of a dual-function supported catalyst comprising a solid acid component and a hydrogenation component under conditions sufficient to catalytically isomerize the at least one linear olefin into an intermediate product comprising one or more branched olefins, and hydrogenating the one or more branched olefins to form an isoparaffin product comprising one or more methylparaffins. Heat transfer fluids comprising such methylparaffins may be used in various thermal management systems, such as within various systems of electric vehicles, server farms, or other locales in need of efficient heat transfer.

Methylparaffins obtained through isomerization of linear olefins and use thereof in thermal management

Methods and corresponding catalysts are provided for conversion of an aromatic feed containing Caromatics (particularly Caromatics) to form a converted product mixture comprising, e.g., benzene and/or xylenes. The aromatic feed can be converted in the presence of a catalyst that includes a silica binder, a mixture of a first zeolite having an MEL framework (such as ZSM-11 and/or an MFI framework (such as ZSM-5), and a second zeolite having an MOR framework, such as mordenite, particularly a mordenite synthesized using TEA or MTEA as a structure directing agent, and a metal. The catalyst can further include one or more metals supported on the catalyst.

Catalysts and processes for converting aromatics

A method for isomerizing alpha olefins to produce an isomerization mixture comprising branched olefins can comprise contacting an olefinic feed including one or more C-Calpha olefins with a catalyst under skeletal isomerization conditions, wherein the catalyst comprises a molecular sieve having an MRE topology; and obtaining an isomerization mixture comprising one or more C-Cbranched olefins.

Methods for isomerizing alpha olefins

Methods and corresponding catalysts are provided for conversion of an aromatics feed containing Caromatics, particularly Caromatics, to form a converted product mixture comprising, e.g., benzene and/or xylenes. The aromatic feed can be converted in the presence of a catalyst that includes a mixture of a first zeolite having an MEL framework, such as ZSM-11, and a second zeolite having a MOR framework, such as mordenite, particularly a mordenite synthesized using TEA or MTEA as a structure directing agent. The weight ratio of the first zeolite to the second zeolite in the catalyst can be from 0.3 to 1.2, or from 0.3 to 1.1, or from 0.3 to 1.0. The catalyst can further include one or more metals supported on the catalyst, such as a combination of metals.

Novel MEL framework type zeolites can be made to have small crystallite sizes and desirable silica/SiOmolar ratios. Catalyst compositions comprising such MEL framework type zeolites can be particularly advantageous in isomerization C8 aromatic mixtures. An isomerization process for converting C8 aromatic hydrocarbons can advantageously utilize a catalyst composition comprising a MEL framework type zeolite.

Zeolite, process for making same, and use thereof in converting aromatic hydrocarbons

Catalyst composition which comprises a first zeolite having a BEA* framework type and a second zeolite having a MOR framework type and a mesopore surface area of greater than 30 m/g is disclosed. These catalyst compositions are used to remove catalyst poisons from untreated feed streams having one or more impurities which cause deactivation of the downstream catalysts employed in hydrocarbon conversion processes, such as those that produce mono-alkylated aromatic compounds.

Catalyst compositions and their use in aromatic alkylation processes

This disclosure provides improved processes for converting benzene/toluene via methylation with methanol/dimethyl ether for producing, e.g., p-xylene. In an embodiment, a process utilizes a methylation catalyst system comprising a molecular sieve catalyst and an auxiliary catalyst. The auxiliary catalyst comprises a metal element selected from Group 2, Group 3, the lanthanide series, the actinide series, and mixtures and combinations thereof. The auxiliary catalyst may comprise the oxide of the metal element. Deactivation of the molecular sieve catalyst can be reduced with the inclusion of the auxiliary catalyst in the methylation catalyst system.

Processes for converting benzene and/or toluene via methylation

A catalyst comprising a microporous crystalline metallosilicate having a Constraint Index of 12, or 10, or 8, or 6 or less, a binder, a Group 1 alkali metal or a compound thereof and/or a Group 2 alkaline earth metal or a compound thereof, a Group 10 metal or a compound thereof, and, optionally, a Group 11 metal or a compound thereof; wherein the catalyst is calcined in a first calcining step before the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof; and wherein the first calcining step includes heating the catalyst to first temperatures of greater than 500&#xb0; C.; and wherein the catalyst is calcined in a second calcining step after the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof wherein the second calcining step includes heating the catalyst to temperatures of greater than 400&#xb0; C.

Calcination of microporous molecular sieve catalysts

This disclosure provides improved processes for converting aromatic hydrocarbons, such as benzene/toluene, alkylation, transalkylation, or isomerization. In an embodiment, a process comprises utilizing a passivated reactor to reduce deactivation of a molecular sieve catalyst. Additional measures such as the use of an auxiliary catalyst and/or an elevated reactor pressure may be used to further reduce deactivation of the molecular sieve catalyst.

Processes for converting aromatic hydrocarbons using passivated reactor

Compositions can include mixtures having from about 2 wt % to about 40 wt % of C-Clinear paraffins based on the weight of the mixture, from about 60 wt % to about 98 wt % of C-Cbranched saturated hydrocarbons based on the weight of the mixture, and less than or equal to about 30 wt % of Csaturated hydrocarbons based on the weight of the mixture. Methods to obtain these compositions can include the isomerization of one or more C-Calpha olefins under skeletal isomerization conditions to obtain an isomerization mixture and the hydrotreating of the isomerization mixture.

Branched paraffinic compositions derived from isomerized and hydrogenated linear alpha olefins

Processes are described for isomerizing one or more C-Calpha olefins to produce an isomerization mixture comprising one or more C-Cinternal olefins comprising contacting an olefinic feed comprising the one or more C-Calpha olefins with a catalyst under isomerization conditions, wherein the catalyst comprises a microporous crystalline aluminosilicate having an MWW framework. The resulting isomerization mixture typically exhibits a low pour point with maintained biodegradability properties as compared to the olefinic feed, and is particularly useful in drilling fluid and paper sizing compositions.

Processes for isomerizing alpha olefins

A process for olefin oligomerization can include: contacting a feedstock comprising at least one Cto Colefin/paraffin under oligomerization conditions in the presence of a Si/Al ZSM-23 catalyst having no amine treatment and a Si/Almolar ratio of 20 to 60 and/or a Si/Al/Ti ZSM-23 catalyst having no amine treatment, a Si/Almolar ratio of 20 to 60, and a Ti/Al molar ratio of 0.1 to 3; and recovering an oligomeric product comprising dimers having a branching index of less than 2.1, trimers having a branching index of less than 2.1, and tetramers having a branching index of less than 2.1.

Oligomerization of olefins

Processes are described for isomerizing one or more C-Calpha olefins to produce an isomerization mixture comprising one or more C-Cinternal olefins comprising contacting an olefinic feed comprising the one or more C-Calpha olefins with a catalyst under isomerization conditions, wherein the catalyst comprises a microporous crystalline aluminosilicate selected from the group consisting of ZSM-5, ZSM-23, ZSM-35, ZSM-11, ZSM-12, ZSM-48, ZSM-57, and mixtures or combinations thereof, and wherein the microporous crystalline aluminosilicate has a SiO/AlOmolar ratio of less than or equal to about 100. The resulting isomerization mixture typically exhibits a lower pour point and maintained biodegradability properties as compared to the olefinic feed, and is particularly useful in drilling fluid and paper sizing compositions.

Growing community of inventors

Bridgewater, NJ, United States of America

Wenyih Frank Lai