A PROCESS TO TREAT A CARBON DIOXIDE COMPRISING GAS

• Main Authors: DE RINK, Frederikus, LIU, Dandan, KLOK, Johannes Bernardus Maria
• Format: Patent
• Language: English; French
• Published: 21.04.2022
• Subjects: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS THEREFOR; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

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. L'invention concerne un procédé de conversion de dioxyde de carbone en méthane par mise en contact d'une solution aqueuse comprenant du dioxyde de carbone dissous avec un lit tassé à charge d'électrons comprenant un support, des granules de carbone activés de manière appropriée et un biofilm de micro-organismes dans des conditions anaérobies, plus de 90 % en moles du dioxyde de carbone dissous dans la solution aqueuse étant présents en tant qu'ion bicarbonate et/ou en tant qu'ion carbonate.