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.:
Date of Patent:
Apr. 02, 2024
Filed:
Feb. 08, 2022
Applicant:
Air Products and Chemicals, Inc., Allentown, PA (US);
Inventors:
Shubhra Jyoti Bhadra, Macungie, PA (US);
Jeffrey R. Hufton, Fogelsville, PA (US);
Timothy C. Golden, Nevez, FR;
Aaron Raymond Scott, Allentown, PA (US);
Quan Min Shao, Allentown, PA (US);
Vishrut Garg, Breinigsville, PA (US);
Assignee:
Air Products and Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 3/56 (2006.01); B01D 53/04 (2006.01); B01D 53/047 (2006.01); B01J 20/34 (2006.01); C01B 3/50 (2006.01);
U.S. Cl.
CPC ...
C01B 3/56 (2013.01); B01D 53/0462 (2013.01); B01D 53/047 (2013.01); B01J 20/3458 (2013.01); C01B 3/506 (2013.01); B01D 2256/16 (2013.01); B01D 2257/102 (2013.01); B01D 2257/104 (2013.01); B01D 2257/11 (2013.01); B01D 2257/502 (2013.01); B01D 2257/504 (2013.01); B01D 2257/7025 (2013.01); B01D 2257/80 (2013.01); C01B 2203/042 (2013.01);
Abstract
A hydrogen feed stream comprising oxygen and one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, and water, is purified using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The CTSA is regenerated using an inert gas to prevent an explosive mixture of hydrogen and oxygen from occurring.