Patent ID: 6989047
Filing Date: 2006-01-24
Classification: B01D,C01B,C01C,Y02C,Y02P

Abstract:
1. A process for the absorptive separation of NH 3 and CH 4 from a gas under high pressure, which at least contains NH 3 , H 2 , N 2 and CH 4 , wherein the absorbed components NH 3 , H 2 , N 2 and CH 4 are separated from the laden solvent in at least two further regeneration process steps at different pressure rates using a high-boiling, physically acting and regenerable solvent which contains homologues of alkylene glycol-alkyl-ether and which also may contain water, thereby withdrawing at least one NH 3 -rich and at least one CH 4 -rich gas fraction from the solvent.