A process to treat a carbon dioxide comprising gas
AssigneePaqell B.V.
InventorsDandan LIU, Frederikus DE RINK, Johannes Bernardus Maria KLOK
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Abstract
The invention is directed to a process to convert carbon dioxide to methane by contacting an aqueous solution comprising dissolved carbon dioxide with an electron charged packed bed comprising of a carrier and a biofilm of microorganisms under anaerobic conditions wherein the pH of the aqueous solution is above 7.5 and wherein the aqueous solution comprises between 0.3 and 4 M sodium cations or between 0.3 and 4 M sodium and potassium cations and more than 20 mM phosphate ions.
Claims16
A process to convert carbon dioxide to methane by contacting an aqueous solution comprising dissolved carbon dioxide with an electron charged packed bed comprising of a carrier and a biofilm of microorganisms under anaerobic conditions
- wherein the pH of the aqueous solution is above 7.5,
- wherein the aqueous solution comprises between 0.3 and 4 M sodium cations or between 0.3 and 4 M sodium and potassium cations and
- wherein the aqueous solution comprises more than 20 mM phosphate ions.
Dependencies are inferred from the claim text.