Mobil Oil Corporation

Exxonmobil Oil Corporation

Gordon J Kennedy

Thomas F Degnan

Anthony S Fung

Louis D Rollmann

Minas R Apelian

Jocelyn A Kowalski

George H Hatzikos

John L Schlenker

Stephen L Lawton

Carrie L Kennedy

This invention relates to a new synthetic crystalline material comprising acidic surface silanol groups, designated MCM-69, a method for its preparation and use thereof in catalytic conversion of organic compounds.

Synthetic crystalline MCM-69, its synthesis and use

This invention relates to the catalyst composition resulting from the addition of phosphorus, and optionally, a matrix material, to a porous crystalline material having the structure of MCM-22, along with the method for making the catalyst composition, and the method for using the catalyst composition in catalytic cracking. It is desirable to improve the hydrothermal stability of the catalysts which are based upon porous crystalline materials having the X-ray structure of MCM-22 to increase the activity that the catalyst maintains after repeated cycles of steaming such as is experienced in the FCC process. It has been found that phosphorus addition to a porous crystalline material having the structure of MCM-22 improves the hydrothermal stability of the resulting catalyst. This improved catalyst is useful in organic conversion processes, e.g., catalytic cracking processes.

Catalyst and method of manufacture

A process for the dealumination of a zeolite having the structure of zeolite Beta by contacting the zeolite with dicarboxylic acid, such as oxalic acid.

Process for the dealumination of zeolite Beta

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Turnersville, NJ, United States of America

Gordon J Kennedy