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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 12697580 B1

PDFFull Text
Date of Patent:
Aug. 04, 2026

Filed:

Jul. 10, 2023

Oxygen-enriched combustion for natural gas combined cycle operation

Applicant:

Exxonmobil Technology and Engineering Company, Annandale, NJ (US);

Inventors:

David C. Calabro, Bridgewater, NJ (US);

Edward W. Corcoran, Jr., Nazareth, PA (US);

Neel Rangnekar, Whitehouse Station, NJ (US);

Yu Wang, Lebanon, NJ (US);

Assignee:

EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Spring, TX (US);

Attorney:

Shook, Hardy & Bacon L.L.P.

Primary Examiner:

Anthony Shumate

Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 53/047 (2006.01); B01D 53/62 (2006.01); B01D 53/92 (2006.01); H01M 8/04089 (2016.01); H01M 8/14 (2006.01);
U.S. Cl.
CPC ...
B01D 53/047 (2013.01); B01D 53/62 (2013.01); B01D 53/92 (2013.01); H01M 8/04097 (2013.01); H01M 8/14 (2013.01); B01D 2256/10 (2013.01); B01D 2256/12 (2013.01); B01D 2257/504 (2013.01); B01D 2259/40035 (2013.01); B01D 2259/4005 (2013.01); B01D 2259/402 (2013.01); H01M 2008/147 (2013.01);
Abstract

Systems and methods are provided for operating a combined cycle power plant while enhancing the COcontent of the flue gas generated by the power plant. The COcontent is enhanced by using a combination of exhaust gas recycle and oxygen-enriched combustion. The oxygen-containing flow for performing the oxygen-enriched combustion can be generated by an integrated pressure swing adsorption process that allows for production of a commercial grade nitrogen stream (95 vol % or more of N) while also providing an oxygen-containing stream with an oxygen content between 25 vol % and 48 vol % with high Orecovery.

Find Patent Forward Citations

Calabro, David. (2026). Oxygen-enriched combustion for natural gas combined cycle operation (U.S. Patent No. 12697580). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12697580

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

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