Michael A Better

US Patent:

6911568, Jun 28, 2005

Filed:

Apr 28, 2000

Appl. No.:

10/239372

Inventors:

Ajit B. Dandekar - Fairfax VA, US
John P. McWilliams - Swedesboro NJ, US
C. Morris Smith - West University Place TX, US
Michael A. Better - Kingwood TX, US
Wei-Ping Tai - Yardley PA, US

Assignee:

ExxonMobil Oil Corporation - Irving TX

International Classification:

C07C002/66

US Classification:

585467

Abstract:

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.

US Patent:

6936744, Aug 30, 2005

Filed:

Jul 19, 2000

Appl. No.:

09/619560

Inventors:

Jane Chi Ya Cheng - Bridgewater NJ, US
Michael Alan Steckel - Bethlehem PA, US
Charles Morris Smith - West University Place TX, US
William Alois Weber - Burlington NJ, US
Stephen Harold Brown - Pennington NJ, US
Ajit Bhaskar Dandekar - Marlton NJ, US
Michael Alan Better - Kingwood TX, US

Assignee:

ExxonMobil Chemical Patents, Inc. - Houston TX

International Classification:

C07C006/00

US Classification:

585475, 585470

Abstract:

The present invention provides a process for producing a monoalkylated aromatic compound, particularly cumene, comprising the step of contacting a polyalkylated aromatic compound with an alkylatable aromatic compound under at least partial liquid phase conditions and in the presence of a transalkylation catalyst to produce the monoalkylated aromatic compound, wherein the transalkylation catalyst comprises a mixture of at least two different crystalline molecular sieves, wherein each of said molecular sieves is selected from zeolite beta, zeolite Y, mordenite and a material having an X-ray diffraction pattern including d-spacing maxima at 12. 40. 25, 6. 90. 15, 3. 570. 07 and 3. 420. 07 Angstrom.

US Patent:

20120172635, Jul 5, 2012

Filed:

Jun 17, 2010

Appl. No.:

13/382790

Inventors:

Charles Morris Yarbrough - Baton Rouge LA, US
Seth McConkie Washburn - Houston TX, US
Dennis Jay Davoren - Baton Rouge LA, US
Michael Alan Better - League City TX, US

International Classification:

C07C 29/04

US Classification:

568895

Abstract:

The invention is directed to improvements in the indirect hydration process for the production of alcohols that enable high alcohol yield by increasing ether recycle in an olefin hydration process, such as the hydration process to produce isopropyl alcohol (IPA) from propylene or the hydration process to produce sec-butyl alcohol (SBA) from butylene.