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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8822363 B1

PDFFull Text
Date of Patent:
Sep. 02, 2014

Filed:

Nov. 04, 2008

Catalyst regeneration process

Applicants:

Doron Levin, Highland Park, NJ (US);

James Harding Beech, Jr., Kingwood, TX (US);

Selma Sheungnam Lawrence, Houston, TX (US);

Julia Elizabeth Steinheider, Houston, TX (US);

Inventors:

Doron Levin, Highland Park, NJ (US);

James Harding Beech, Jr., Kingwood, TX (US);

Selma SheungNam Lawrence, Houston, TX (US);

Julia Elizabeth Steinheider, Houston, TX (US);

Assignee:

ExxonMobil Chemical Patents Inc., Houston, TX (US);

Attorney:

Darryl M. Tyus

Primary Examiner:

Jennifer A Smith

Int. Cl.
CPC ...
B01J 38/12 (2006.01); B01J 38/40 (2006.01); B01J 38/30 (2006.01); B01J 38/36 (2006.01); B01J 38/34 (2006.01); B01J 38/16 (2006.01); B01J 29/70 (2006.01); B01J 29/06 (2006.01); B01J 38/20 (2006.01); B01J 29/90 (2006.01); B01J 29/74 (2006.01); B01J 29/78 (2006.01);
U.S. Cl.
CPC ...
B01J 29/90 (2013.01); B01J 29/7034 (2013.01); B01J 29/06 (2013.01); B01J 38/20 (2013.01); B01J 29/74 (2013.01); B01J 2229/42 (2013.01); B01J 29/78 (2013.01);
Abstract

This disclosure relates to a process for regenerating a catalyst composition, wherein the catalyst composition comprising a molecular sieve and at least 10 wt. % coke having a C/H molar ratio in the range of 0.26 to 5, the process comprising (a) contacting the catalyst composition with a first oxidative medium having oxygen and water at first conditions sufficient to form a first regenerated catalyst composition having at least 50 wt. % less coke than the catalyst composition; and then (b) contacting at least a portion of the first regenerated catalyst composition with a second oxidative medium having oxygen, and optionally water, at second conditions sufficient to form a second regenerated catalyst composition having at least 50 wt % less coke than the first regenerated catalyst composition, wherein the catalyst composition in step (a) and the first regenerated catalyst in step (b) have contacted total amount of water in the range of 1 to 50 weight water per weight of the second regenerated catalyst composition.

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