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:
Aug. 25, 2026
Filed:
Dec. 18, 2020
Praxair Technology, Inc., Danbury, CT (US);
Sean M. Kelly, Pittsford, NY (US);
Sadashiv M. Swami, Williamsville, NY (US);
Maulik R. Shelat, Macungie, PA (US);
Ines C. Stuckert, Grand Island, NY (US);
Steven M. Brown, Amherst, NY (US);
Shrikar Chakravarti, East Amherst, NY (US);
Juan Li, Clarence, NY (US);
Digna Vora, Buffalo, NY (US);
PRAXAIR TECHNOLOGY, INC., Danbury, CT (US);
Abstract
A method and system for decarbonization of a hydrocarbon conversion process such as steam methane reforming process for hydrogen production utilizing oxygen transport membrane reactors. The system employs catalyst-containing reforming reactors for converting natural gas into synthesis gas which is further treated in high temperature or medium temperature water gas shift reactors and fed to a hydrogen PSA to produce hydrogen product. The system further employs oxygen transport membrane reactors thermally coupled to reforming reactors and configured to oxy-combust about 90% to about 95% of combustibles in PSA tail gas that may be optionally mixed with natural gas. The oxy-combustion product stream leaving the oxygen transport membrane reactors contains about 90% of the carbon provided to the feed of the reforming reactor. The carbon dioxide in the oxy-combustion product stream can be recovered and further purified for utilization or geologic storage or liquefied to form a liquid carbon dioxide product.