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:
Nov. 26, 2024
Filed:
Dec. 28, 2023
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Christopher DiGiulio, Elmhurst, IL (US);
Gaurav Srivastava, Fatehgarh, IN;
Shubhra J Bhadra, Des Plaines, IL (US);
Krishna Mani, Madurai, IN;
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/02 (2006.01); B01D 53/04 (2006.01); B01D 53/047 (2006.01);
U.S. Cl.
CPC ...
B01D 53/0476 (2013.01); B01D 53/0462 (2013.01); B01D 2257/104 (2013.01); B01D 2257/108 (2013.01); B01D 2257/304 (2013.01); B01D 2257/502 (2013.01); B01D 2257/504 (2013.01); B01D 2257/80 (2013.01); B01D 2258/05 (2013.01);
Abstract
A process is provided for purification of biogas to produce biomethane. The biogas is treated in a pressure swing adsorption unit to remove carbon dioxide and water. Other impurities including oxygen, hydrogen and carbon monoxide may be removed by an additional adsorption bed. The adsorption beds may be single stage or two-stage VPSA or PSA adsorption beds.