Patent ID: 6348083
Filing Date: 2002-02-19
Classification: B01D,Y02C,Y02P

Abstract:
Process for the recovery and/or purification of at least one portion of nitrous oxide (N2O) contained in a flow of waste gas comprising nitrous oxide and at least one other gaseous component, comprising the steps of:(a) separating by permeation at least one portion of the nitrous oxide contained in the flow of waste gas, the flow of waste gas containing from 20 to 99.9% by volume of nitrous oxide, the flow of waste gas being a waste gas from an industrial process selected from the group consisting of a waste gas emanating from a process for the production of adipic acid, a waste gas emanating from a process for the production of nitrous oxide, a waste gas emanating from a process for the production of nitric acid, a waste gas emanating from a process for the production of glycoxylic acid and a waste gas emanating from a process for the production of phenol; and (b) recovering at least one portion of the nitrous oxide separated in step (a).