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:
Jan. 06, 2026
Filed:
Aug. 04, 2023
Exxonmobil Technology and Engineering Company, Annandale, NJ (US);
Petrochemical Research Institute, Lanzhou, CN;
Vinit Choudhary, Cypress, TX (US);
Yosuke Sano, Singapore, SG;
Hyung Rae Kim, Basking Ridge, NJ (US);
Joseph Famolaro, Spring, TX (US);
Masaaki Sugita, The Woodlands, TX (US);
Bing Du, Pittstown, NJ (US);
Arun Sharma, Hellertown, PA (US);
Colin L. Beswick, Lebanon, NJ (US);
Hyungsik Lee, Houston, TX (US);
EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Spring, TX (US);
Petrochemical Research Institute, Lanzhou, CN;
Abstract
In various aspects, systems and methods are provided for operating an oxygen-fired catalyst regenerator with flue gas recycle and COcapture. An oxygen-fired catalyst regenerator contrasts with an air-fired regenerator. The oxygen-fired catalyst regenerator substantially reduces nitrogen within the system, which facilitates COcapture by reducing the energy required to capture CO. In various aspects, a first portion of the regenerator flue gas is passed to a COcapture system and a second portion is recycled to the regenerator. Before the flue gas is recycled or diverted to the COcapture, it is passed to various processes that remove and/or reduce SO, NO, particulate, and water content. In various aspects, a portion of the treated flue gas may be combined with substantially pure Oand recycled to the regenerator.