System and method for enhanced removal of co2 from a mixed gas stream via use of a catalyst

Abstract

A solvent based flue gas processing system for removing CO 2 from a flue gas stream is described. A catalyst is provided to increase the efficiency of the solvent in capturing CO 2 from the flue gas stream or in regenerating the solvent.

What is claimed: 
     
         1 . A mixed gas processing system comprising:
 a regeneration vessel configured to receive a carbon rich solvent stream and a catalyst, wherein the catalyst promotes the release of carbon dioxide within the carbon rich solvent stream   
     
     
         2 . The system of  claim 1 , wherein the catalyst is a homogeneous catalyst. 
     
     
         3 . The system of  claim 1 , wherein the catalyst is a heterogeneous catalyst. 
     
     
         4 . The system of  claim 1 , wherein said mixed gas system is an amine based mixed gas processing system. 
     
     
         5 . The system of  claim 1  wherein said mixed gas system is an ammonia based mixed gas processing system. 
     
     
         6 . The system of  claim 1 , wherein the catalyst promotes decomposition of products formed from the carbonation/bi-carbonation and carbomation of amine with CO2. 
     
     
         7 . The system of  claim 1 , wherein the catalyst includes organo-metallic complex catalysts. 
     
     
         8 . The system of  claim 1 , further including a heat source to heat the carbon rich solvent stream in the regeneration vessel. 
     
     
         9 . A process for removing carbon dioxide from a mixed gas, the process comprising:
 passing a carbon rich solvent stream and a catalyst through a regeneration vessel, wherein the catalyst promotes the release of carbon dioxide within the carbon rich solvent stream.   
     
     
         10 . The process of  claim 9 , wherein the catalyst is a homogeneous catalyst. 
     
     
         11 . The process of  claim 9 , wherein the catalyst is a heterogeneous catalyst. 
     
     
         12 . The process of  claim 9 , wherein said mixed gas system is an amine based mixed gas processing system. 
     
     
         13 . The process of  claim 9 , wherein said mixed gas system is an ammonia based mixed gas processing system. 
     
     
         14 . The process of  claim 9 , wherein the catalyst promotes the decomposition of products formed from the carbonation/bi-carbonation and carbomation of amine with CO2. 
     
     
         15 . The process of  claim 9 , wherein the catalyst includes organo-metallic complex catalysts. 
     
     
         16 . The process of  claim 9 , further including heating the carbon rich solvent stream in the regeneration vessel. 
     
     
         17 . A mixed gas processing system comprising:
 regeneration vessel configured to receive a carbon dioxide rich solvent stream; and   packing material disposed in the regeneration vessel, wherein the packing material is coated/immobilized with a catalyst to promote the release of carbon dioxide within the carbon rich solvent stream.   
     
     
         18 . The system of  claim 17 , wherein the catalyst is a homogeneous catalyst. 
     
     
         19 . The system of  claim 17 , wherein the catalyst is a heterogeneous catalyst. 
     
     
         20 . The system of  claim 17 , wherein the catalyst promotes decomposition of products formed from the carbonation/bi-carbonation and carbomation of amine with CO2.