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:
Sep. 30, 2025
Filed:
Nov. 21, 2022
Applicant:
Air Products and Chemicals, Inc., Allentown, PA (US);
Inventors:
Vincent White, Surrey, GB;
Simon Craig Saloway, Surrey, GB;
Assignee:
AIR PRODUCTS AND CHEMICALS, INC., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 3/04 (2006.01); B01D 53/04 (2006.01); B01D 53/047 (2006.01); B01J 8/04 (2006.01); B01J 8/06 (2006.01); C01B 3/56 (2006.01);
U.S. Cl.
CPC ...
C01B 3/047 (2013.01); B01D 53/0438 (2013.01); B01D 53/047 (2013.01); B01J 8/0492 (2013.01); B01J 8/0496 (2013.01); B01J 8/062 (2013.01); B01J 8/065 (2013.01); B01J 8/067 (2013.01); C01B 3/56 (2013.01); B01D 2256/16 (2013.01); B01D 2257/102 (2013.01); B01D 2257/406 (2013.01); B01J 2208/00176 (2013.01); B01J 2208/00407 (2013.01); B01J 2208/00504 (2013.01); C01B 2203/042 (2013.01); C01B 2203/0465 (2013.01); C01B 2203/0811 (2013.01); C01B 2203/085 (2013.01); C01B 2203/0883 (2013.01);
Abstract
Processes for cracking ammonia are improved by using heat generated in a compression unit that is used to compress PSA off gas being recycled to a PSA unit to pre-heat liquid ammonia prior to vaporization and cracking. The heat is transferred using a heat transfer fluid such as an aqueous solution comprising from about 50 wt. % to about 60 wt. % of a glycol, e.g., ethylene glycol or propylene glycol.