Process to treat a carbon dioxide comprising gas
AssigneePaqell B.V.
InventorsDandan Liu, Frederikus De Rink, Johannes Bernardus Maria Klok
Life of this patent
Estimating the term…
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, suitably activated carbon granules, and a biofilm of microorganisms under anaerobic conditions, wherein more than 90 mol % of the dissolved carbon dioxide in the aqueous solution is present as a bicarbonate ion and/or as a carbonate ion.
Claims19
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 aqueous solution comprises:
- a) between 0.3 and 4 M sodium cations, or
- b) between 0.3 and 4 M sodium and potassium cations,
- such that more than 90 mol % of the dissolved carbon dioxide in the aqueous solution is present as a bicarbonate ion and/or as a carbonate ion.
Dependencies are inferred from the claim text.