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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 12492121 B1

PDFFull Text
Date of Patent:
Dec. 09, 2025

Filed:

Nov. 01, 2022

Conversion of ammonia to hydrogen and nitrogen using ammonia as a sweep gas

Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Mohammad Abdur Rakib, Dhahran, SA;

Stephen N. Paglieri, Dhahran, SA;

Osamah Siddiqui, Dhahran, SA;

Sai P. Katikaneni, Dhahran, SA;

Kunho Lee, Dhahran, SA;

Assignee:

Saudi Arabian Oil Company, Dhahran, SA;

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Natasha E Young

Int. Cl.
CPC ...
C01B 3/04 (2006.01); B01D 53/00 (2006.01); B01D 53/22 (2006.01); B01J 8/06 (2006.01); C01B 3/50 (2006.01);
U.S. Cl.
CPC ...
C01B 3/047 (2013.01); B01D 53/002 (2013.01); B01D 53/229 (2013.01); B01J 8/065 (2013.01); B01J 8/067 (2013.01); C01B 3/503 (2013.01); C01B 3/506 (2013.01); B01J 2208/065 (2013.01); C01B 2203/041 (2013.01); C01B 2203/046 (2013.01); C01B 2203/0465 (2013.01);
Abstract

The disclosure relates to systems and methods for the production of hydrogen (H) from ammonia (NH) in a membrane reactor that include using ammonia as a sweep gas. Ammonia is converted to hydrogen and nitrogen (N), and the hydrogen is separated from the nitrogen and unreacted ammonia by passing the hydrogen through a hydrogen-permeable membrane while using ammonia as a sweep gas. The ammonia sweep gas can be separated from the permeated hydrogen and continuously recycled.

Find Patent Forward Citations

Rakib, Mohammad. (2025). Conversion of ammonia to hydrogen and nitrogen using ammonia as a sweep gas (U.S. Patent No. 12492121). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12492121

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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