Christopher D Garrett

US Patent:

20080171649, Jul 17, 2008

Filed:

Jan 12, 2007

Appl. No.:

11/622896

Inventors:

Deng-Yang Jan - Elk Grove Villiage IL, US
Robert J. Schmidt - Barrington IL, US
Mathias P. Koljack - Gilberts IL, US
Thomas M. Reynolds - Mobile AL, US
Christopher J. Garrett - Mobile AL, US

International Classification:

B01J 29/06

US Classification:

502 64

Abstract:

Catalysts for converting polyalkylaiomatics to monoalkylaromatics, particularly cumene and ethyl benzene are disclosed which comprise modified Y-85 or LZ-210 zeolites. For cumene and ethylbenzene production, a disclosed catalyst, made of 80 wt % zeolite and 20 wt % alumina binder on a volatile-flee basis, has one or more of the following physical characteristics: (1) an absolute intensity of the modified Y zeolite as measured by X-ray diffraction (XRD) of preferably at least 50 and (2) a framework aluminum of the modified Y zeolite of preferably at least 50% of the aluminum of the modified Y zeolite.

US Patent:

20080171902, Jul 17, 2008

Filed:

Jan 12, 2007

Appl. No.:

11/622941

Inventors:

Deng-Yang Jan - Elk Grove Village IL, US
Robert J. Schmidt - Barrington IL, US
Guy B. Woodle - Mount Prospect IL, US
Mathias P. Koljack - Gilberts IL, US
Elena Z. Maurukas - Lemont IL, US
Thomas M. Reynolds - Mobile AL, US
Christopher J. Garrett - Mobile AL, US

International Classification:

C07C 5/22

US Classification:

585472

Abstract:

A process for converting polyalkylaromatics to monoalkylaromatics, particulary cumene, in the presence of a modified Y-85 zeolite is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.