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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 11091704 B1

PDFFull Text
Date of Patent:
Aug. 17, 2021

Filed:

Jan. 24, 2019

Integration of pressure swing adsorption with hydrocracking for improved hydrogen and liquids recovery

Applicant:

Uop Llc, Des Plaines, IL (US);

Inventors:

David A. Wegerer, Lisle, IL (US);

Bradley P. Russell, Wheaton, IL (US);

Gautam Pandey, Gurgaon, IN;

Wim F. Elseviers, Ghent, BE;

Assignee:

UOP LLC, Des Plaines, IL (US);

Attorneys:

Paschall & Associates, LLC

Mark Goldberg

Primary Examiner:

Sharon Pregler

Int. Cl.
CPC ...
C10G 59/02 (2006.01); B01D 53/04 (2006.01); C01B 3/02 (2006.01); B01D 53/047 (2006.01); B01D 53/22 (2006.01); B01D 53/94 (2006.01); B01D 53/75 (2006.01); B01D 53/00 (2006.01);
U.S. Cl.
CPC ...
C10G 59/02 (2013.01); B01D 53/047 (2013.01); B01D 53/0462 (2013.01); B01D 53/229 (2013.01); B01D 53/75 (2013.01); B01D 53/9431 (2013.01); C01B 3/02 (2013.01); B01D 53/002 (2013.01); B01D 2253/104 (2013.01); B01D 2253/106 (2013.01); B01D 2253/108 (2013.01); B01D 2256/16 (2013.01); B01D 2256/24 (2013.01); B01D 2257/108 (2013.01); B01D 2257/304 (2013.01); B01D 2257/406 (2013.01); B01D 2257/7022 (2013.01); B01D 2257/7025 (2013.01); B01D 2257/80 (2013.01); C10G 2300/1044 (2013.01); C10G 2400/02 (2013.01);
Abstract

The invention provides a process for producing hydrogen for a hydrogen consuming process comprising obtaining a net gas stream containing hydrogen, compressing the gas stream to a pressure of 20.7 to 68.9 bar (300 to 1000 psig) to produce a compressed gas stream; sending the compressed gas stream to a pressure swing adsorption unit to be separated into a hydrogen stream and a fuel gas stream; purging the pressure swing adsorption unit with an external purge gas stream from a hydroprocessing unit off gas; treating the off gas with a thermal swing adsorption unit to remove water and other impurities prior to purging the pressure swing adsorption unit, and using a protective adsorbent layer in the pressure swing adsorption unit to adsorb impurities from the external purge gas.

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