CPC C07C 1/041 (2013.01) [C07C 1/12 (2013.01)] | 4 Claims |
1. A methane production system comprising:
a reaction tank configured to be supplied with CO and/or CO2 and produce methane and water by reacting CO and/or CO2 with hydrogen;
a cleaning tank that is located at an upstream side of the reaction tank in a supply direction of the CO and/or CO2, the cleaning tank configure to remove water-soluble impurities from a raw material gas including the CO and/or CO2 and the water-soluble impurities by bringing the raw material gas into contact with water;
a first supply line configured to supply the raw material gas from which the water-soluble impurities are removed from the cleaning tank to the reaction tank; and
a second supply line configured to supply water produced in the reaction tank from the reaction tank to the cleaning tank to bring the produced water into contact with the raw material gas in the cleaning tank.
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