US Patent Issued to L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude on June 30 for "Facility and method for producing biomethane with limited methane loss and limited CO 2 emissions" (Chinese, French Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,805, issued on June 30, was assigned to L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude (Paris).

"Facility and method for producing biomethane with limited methane loss and limited CO 2 emissions" was invented by Solene Valentin (Voreppe, France) and Francois Barraud (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a facility and a method using the facility for treating a feed gas stream comprising at least methane and carbon dioxide by membrane permeation, the facility comprising: -a first membrane separation unit capable of receiving the feed gas stream and providing a first permeate a...