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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 11577235 B1

PDFFull Text
Date of Patent:
Feb. 14, 2023

Filed:

Aug. 13, 2021

Layered catalyst reactor systems and processes for hydrotreatment of hydrocarbon feedstocks

Applicant:

Chevron U.s.a. Inc., San Ramon, CA (US);

Inventors:

Axel Brait, San Rafael, CA (US);

Xiaoying Ouyang, El Cerrito, CA (US);

Alexander Kuperman, Orinda, CA (US);

Theodorus Ludovicus Michael Maesen, San Ramon, CA (US);

Assignee:

CHEVRON U.S.A. INC., San Ramon, CA (US);

Attorney:

King & Spalding LLP

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 21/08 (2006.01); B01J 21/12 (2006.01); B01J 21/16 (2006.01); B01J 23/28 (2006.01); B01J 23/30 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/75 (2006.01); B01J 23/755 (2006.01); B01J 23/882 (2006.01); B01J 23/883 (2006.01); B01J 23/888 (2006.01); B01J 23/89 (2006.01); B01J 35/00 (2006.01); C07C 4/06 (2006.01); C07C 5/02 (2006.01); C07C 6/00 (2006.01); B01J 35/10 (2006.01);
U.S. Cl.
CPC ...
B01J 35/0006 (2013.01); B01J 21/04 (2013.01); B01J 21/16 (2013.01); B01J 23/42 (2013.01); B01J 23/44 (2013.01); B01J 23/8885 (2013.01); B01J 35/10 (2013.01);
Abstract

A layered catalyst reactor system and process for hydrotreatment of hydrocarbon feedstocks. The layered catalyst system reactors comprise vertical bed layers including a demetallization catalyst layer, multiple layers of supported hydrotreating catalyst layer, and multiple alternating layers of supported hydrocracking catalysts and self-supported hydrotreating catalysts. The arrangement of the catalyst layers mitigates the risk of temperature run-aways, with improvements in hydrotreatment performance.

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