Mobil Oil Corporation

Exxonmobil Chemical Patents Inc.

Exxonmobil Oil Corporation

C Morris Smith

Dennis E Walsh

Daria N Lissy

Clarence D Chang

James C Vartuli

Kun Wang

Jane C Cheng

Stephen L Lawton

Wieslaw J Roth

Christine Nicole Elia

Michael C Clark

Donald J Klocke

Mohan Kalyanaraman

Frederick Y Lo

Jose G Santiesteban

Doron Levin

Mae K Rubin

John P McWilliams

Ajit Bhaskar Dandekar

Chaya R Venkat

Michael E Leonowicz

Anthony S Fung

Michael Hryniszak

Michael Alan Better

Wei-Ping Tai

J Michael Bennett

Anthony D Fung

A catalyst composition comprises (a) a MCM-22 family molecular sieve; and (b) a binder, wherein the MCM-22 family molecular sieve is characterized by an average crystal agglomerate size of less than or equal to 16 microns. The catalyst composition may further have a second molecular sieve having a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent.

Catalyst composition, the method of manufacturing, and the process of using thereof in hydrocarbon conversions

A process is disclosed for producing &#x3b1;-methylstyrene, acetone, and phenol wherein the amount of &#x3b1;-methylstyrene produced may be controlled by selectively converting a portion of the cumene hydroperoxide to dimethyl phenyl carbinol, the hydrated form of &#x3b1;-methylstyrene. The dimethyl phenyl carbinol thus produced will lead to increased production of &#x3b1;-methylstyrene upon dehydration in the acid cleavage unit of the phenol plant. By controlling the fraction of the cumene hydroperoxide reduced to dimethyl phenyl carbinol, the amount of &#x3b1;-methylstyrene produced in the plant can be continuously set to meet the demand of the market for &#x3b1;-methylstyrene. Also disclosed is a non-acidic catalyst for reduction of cumene hydroperoxide.

Co-production of phenol, acetone, &#x3b1;-methylstyrene and propylene oxide, and catalyst therefor

A process for alkylating an alkylatable aromatic compound is disclosed, in which the process includes: The process provides comparable rejuvenation of catalyst activity as air rengenaration with minimal or no increase in amounts of undesirable byproducts such as polypropylbenzenes in the case of benzene alkylation with propylene.

Regeneration of aromatic alkylation catalysts using hydrocarbon stripping

There is provided a process for preparing ethylbenzene using liquid phase alkylation and vapor phase transalkylation. The liquid phase alkylation reaction may be catalyzed by an acidic solid oxide, such as MCM-22, MCM-49 and MCM-56. The vapor phase transalkylation may be catalyzed by a medium-pore size zeolite such as ZSM-5. The process may be run continuously with the continuous introduction of fresh benzene feed containing at least 500 ppm of nonbenzene hydrocarbon impurities. The combined ethylbenzene product of these alkylation and transalkylation reactions has very low levels of impurities including xylene, hydrocarbons having 7 or less carbon atoms and hydrocarbons having 9 or more carbon atoms.

Continuous process for preparing ethylbenzene using liquid phase

Relatively short chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively short chain alkylating agent under sufficient reaction conditions in the presence of a catalyst comprising zeolite MCM-56. The liquid phase syntheses of ethylbenzene and cumene are particular examples of such MCM-56 catalyzed reactions.

Process for preparing short chain alkyl aromatic compounds

There is provided a process for the liquid phase synthesis of ethylbenzene with a zeolite designated MCM-49. The process involves the alkylation of benzene with ethylene under liquid phase conditions.

Liquid phase ethylbenzene synthesis with MCM-49

Relatively short chain alkyl aromatic compounds are prepared by alkylating or transalkylating an alkylatable aromatic compound with a relatively short chain alkylating or transalkylating agent under sufficient reaction conditions in the presence of catalyst comprising zeolite MCM-49.

This invention relates to a process in which the addition of a substantially inert solvent to a heavy petroleum stock permits high conversion hydrocracking and hydrogen addition to be accomplished in the absence of catalyst or additive.

Thermal hydrocracking of heavy stocks in the presence of solvents

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Princeton, NJ, United States of America

C Morris Smith