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:
Dec. 13, 2022
Filed:
Sep. 25, 2019
Applicant:
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 7/10 (2006.01); C07C 7/12 (2006.01); F25J 3/02 (2006.01); B01D 53/02 (2006.01); B01D 53/14 (2006.01); B01D 53/22 (2006.01); B01D 53/26 (2006.01); C07C 7/00 (2006.01); C07C 7/144 (2006.01); C10L 3/10 (2006.01);
U.S. Cl.
CPC ...
F25J 3/0219 (2013.01); B01D 53/02 (2013.01); B01D 53/1475 (2013.01); B01D 53/229 (2013.01); B01D 53/261 (2013.01); B01D 53/265 (2013.01); C07C 7/005 (2013.01); C07C 7/10 (2013.01); C07C 7/12 (2013.01); C07C 7/144 (2013.01); C10L 3/103 (2013.01); C10L 3/104 (2013.01); C10L 3/105 (2013.01); C10L 3/106 (2013.01); F25J 3/0233 (2013.01); F25J 3/0266 (2013.01); B01D 2252/204 (2013.01); C10L 2200/0259 (2013.01); C10L 2200/0263 (2013.01); C10L 2200/0286 (2013.01); C10L 2200/0469 (2013.01); C10L 2290/08 (2013.01); C10L 2290/30 (2013.01); C10L 2290/46 (2013.01); C10L 2290/542 (2013.01); C10L 2290/544 (2013.01); C10L 2290/548 (2013.01); F25J 2205/20 (2013.01); F25J 2205/30 (2013.01); F25J 2205/40 (2013.01); F25J 2210/66 (2013.01); F25J 2220/66 (2013.01); F25J 2220/68 (2013.01); F25J 2230/30 (2013.01); F25J 2260/20 (2013.01);
Abstract
Process for producing biomethane from a biogas stream including methane, carbon dioxide and at least one impurity chosen from ammonia, volatile organic compounds, water, sulfur-based impurities (HS) and siloxanes. A biogas stream is dried, the at least one impurity is at least partially removed by solidification and removal of the impurity. The methane and the carbon dioxide contained in the biogas obtained from the second step are separated so as to produce a biomethane stream and a COstream.