Patent ID: 9539541
Date: 2017-01-10
CPC Classifications: B01D,B01J,Y02A,Y02C

Claim:
1. A method for removing CO 2 from a gas or gas mixture produced by combustion of hydrocarbon fuel by an internal combustion engine on a mobile source comprising contacting a mixed salt composition which consists of: (i) MgCO 3 , (ii) at least one carbonate salt of Na, Li, K, or Rb, and (iii) at least one nitrate salt of Na, Li, K, or Rb, wherein the Mg of (i) and the Na, Li, K, or Rb of (ii) and (iii) are present in a molar ratio of from about 6:1 to about 4:1, with said gas or gas mixture produced by said internal combustion engine at a temperature of from about 100° C. to about 450° C. for a time sufficient for said mixed salt composition to remove a portion of CO 2 therefrom and releasing adsorbed CO 2 to regenerate said composition by heat exchange with hot exhaust gas discharged from said internal combustion engine.