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. 29, 2023
Filed:
Jan. 17, 2023
Applicant:
Unconventional Gas Solutions, Llc, Houston, TX (US);
Inventor:
Benjamin Bikson, Newton, MA (US);
Assignee:
Unconventional Gas Solutions, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/14 (2006.01); B01D 53/18 (2006.01);
U.S. Cl.
CPC ...
B01D 53/1406 (2013.01); B01D 53/1431 (2013.01); B01D 53/1468 (2013.01); B01D 53/1475 (2013.01); B01D 53/1487 (2013.01); B01D 53/18 (2013.01); B01D 2256/245 (2013.01); B01D 2257/104 (2013.01); B01D 2257/304 (2013.01); B01D 2257/504 (2013.01); B01D 2257/556 (2013.01); B01D 2257/702 (2013.01); B01D 2257/80 (2013.01);
Abstract
A method for generating Renewable Natural Gas (RNG) from raw biogas is disclosed, in which carbon dioxide is removed from biogas to generate pipeline specification RNG by a combination of absorption and membrane processes. The absorption process provides for the initial bulk carbon dioxide removal. The membrane process provides for the simultaneous removal of carbon dioxide and water vapors to pipeline specification. The method is characterized by a reduced separation energy consumption as compared to stand-alone membrane and absorption unit separations for biogas upgrading.