Invention Grant
- Patent Title: Method for the final purification of biogas for producing biomethane
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Application No.: US15022309Application Date: 2014-09-11
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Publication No.: US09988326B2Publication Date: 2018-06-05
- Inventor: Nicolas Paget , Guenael Prince , Golo Zick
- Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
- Applicant Address: FR Paris
- Assignee: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
- Current Assignee: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
- Current Assignee Address: FR Paris
- Agent Christopher J. Cronin
- Priority: FR1358901 20130916
- International Application: PCT/FR2014/052259 WO 20140911
- International Announcement: WO2015/036709 WO 20150319
- Main IPC: C07C7/144
- IPC: C07C7/144 ; B01D53/22
Abstract:
A four-stage membrane separation unit purification process, especially for prepurified biogas, in which a retentate from the first stage is fed as feed gas to a second stage, a permeate from the first stage is fed as feed gas to a third stage, a retentate from the third stage is fed as feed gas to a fourth stage.
Public/Granted literature
- US20160229771A1 METHOD FOR THE FINAL PURIFICATION OF BIOGAS FOR PRODUCING BIOMETHANE Public/Granted day:2016-08-11
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