Enzymatic Formulation and Composition for CO2 Capture Reactions

Abstract

A triphasic bioreactor and process for physico-chemically treating a gas includes a reaction chamber and its use with a liquid and biocatalysts in suspension, for catalyzing a reaction between the gas and the liquid to obtain a treated gas and a solution containing a reaction product. An enzymatic formulation for catalysis of the reaction CO 2 +H 2 O←→HCO 3 − +H + includes an aqueous medium, support particles in suspension in the aqueous medium and carbonic anhydrase supported by the support particles and present in an amount sufficient to catalyze the reaction.

1 . An enzymatic formulation for catalysis of the reaction CO 2 +H 2 O HCO 3   − +H + , the enzymatic formulation comprising:
 an aqueous medium;   support particles in suspension in the aqueous medium;   carbonic anhydrase supported by the support particles and present in an amount sufficient to catalyze the reaction.   
     
     
         2 . The enzymatic formulation of  claim 1 , wherein the carbonic anhydrase are provided on the support particles. 
     
     
         3 . The enzymatic formulation of  claim 1 , wherein the carbonic anhydrase are provided directly onto the support particles. 
     
     
         4 . The enzymatic formulation of  claim 2 , wherein the carbonic anhydrase are immobilized onto the support particles. 
     
     
         5 . The enzymatic formulation of  claim 4 , wherein the carbonic anhydrase are covalently bonded onto the support particles. 
     
     
         6 . The enzymatic formulation of  claim 1 , wherein the carbonic anhydrase are immobilized. 
     
     
         7 . The enzymatic formulation of  claim 1 , wherein the carbonic anhydrase are entrapped. 
     
     
         8 . The enzymatic formulation of  claim 7 , wherein the carbonic anhydrase are entrapped in the support particles. 
     
     
         9 . The enzymatic formulation of  claim 1 , wherein the support particles are solid polymer particles. 
     
     
         10 . The enzymatic formulation of  claim 1 , wherein the support particles are composed of nylon. 
     
     
         11 . The enzymatic formulation of  claim 1 , wherein the support particles are composed of polystyrene, polyurethane, polymethylmethacrylate, or functionalised silica gel. 
     
     
         12 . The enzymatic formulation of  claim 1 , wherein the support particles comprise porous support particles. 
     
     
         13 . The enzymatic formulation of  claim 12 , wherein the carbonic anhydrase are entrapped in the porous support particles. 
     
     
         14 . The enzymatic formulation of  claim 12 , wherein the porous support particles are made of organic material. 
     
     
         15 . The enzymatic formulation of  claim 12 , wherein the porous support particles are made of inorganic material. 
     
     
         16 . The enzymatic formulation of  claim 12 , wherein the porous support particles comprise particles composed of an insoluble gel. 
     
     
         17 . The enzymatic formulation of  claim 12 , wherein the porous support particles comprise particles composed of silica. 
     
     
         18 . The enzymatic formulation of  claim 12 , wherein the porous support particles comprise particles composed of alginate. 
     
     
         19 . The enzymatic formulation of  claim 12 , wherein the porous support particles comprise particles composed of alginate/chitosan. 
     
     
         20 . The enzymatic formulation of  claim 12 , wherein the porous support particles comprise particles composed of chitosan. 
     
     
         21 . The enzymatic formulation of  claim 12 , wherein the porous support particles comprise particles composed of alginate/carboxymethylcellulose. 
     
     
         22 . The enzymatic formulation of  claim 1 , wherein the support particles comprise a network and the carbonic anhydrase are chemically linked with the network. 
     
     
         23 . The enzymatic formulation of  claim 22 , wherein the network is a PEG network. 
     
     
         24 . The enzymatic formulation of  claim 22 , wherein the network is an albumin network. 
     
     
         25 . The enzymatic formulation of  claim 1 , wherein the support particles include particles of 0.005 μm to 0.1 μm in size. 
     
     
         26 . The enzymatic formulation of  claim 1 , wherein the support particles include particles of 1 mm to 9 mm in diameter. 
     
     
         27 . The enzymatic formulation of  claim 26 , wherein the support particles include particles of 3 mm in diameter. 
     
     
         28 . The enzymatic formulation of  claim 26 , wherein the support particles are composed of alginate. 
     
     
         29 . The enzymatic formulation of  claim 1 , wherein the support particles are composed of a material that is different from the carbonic anhydrase supported thereby. 
     
     
         30 . The enzymatic formulation of  claim 1 , wherein the reaction is a forward reaction for absorption of CO 2  from a CO 2  containing gas into the aqueous medium. 
     
     
         31 . The enzymatic formulation of  claim 1 , wherein the reaction is a backward reaction. 
     
     
         32 . An enzymatic composition for catalysis of the reaction CO 2 +H 2 O HCO 3   − +H + , the enzymatic composition comprising:
 support particles suspendable in an aqueous medium;   carbonic anhydrase supported by the support particles and present in an amount sufficient to catalyze the reaction within the aqueous medium.