| abstract |
PURPOSE: To increase the absorption capacity and adsorption rate and improve the adsorptive separation efficiency, by contacting a basic ion exchange resin containing a specific amide group with a CO 2 -containing gas. n CONSTITUTION: A basic ion exchange resin (A) containing an amide group of formula [R is amino group or its derivative (e.g., polyalkylenepolyamino group)] is produced by reacting a resin containing nitrile group (e.g., acrylonitrile) with an amino compound containing primary and/or secondary amino group (e.g., NH 3 ) and hydrolyzing the resultant amidine. The component A is made to contact with a CO 2 -containing gas (B) e.g., in batch to effect the adsorption of CO 2 from the component B to the component A and obtain the CO 2 -adsorbed component A (C). The component C is heated at 150W80°C to desorb the adsorbed CO 2 . n COPYRIGHT: (C)1989,JPO&Japio |