Carbon dioxide recovery system

Abstract

A carbon dioxide recovery system includes a distillation column for heating an absorption solution having carbon dioxide absorbed therein to cause the carbon dioxide to be released from the absorption solution, a first reboiler that causes heat exchange to occur between a heating medium and the absorption solution extracted from the distillation column, a methanation device that includes a reactor for producing methane by causing a reaction between carbon dioxide and hydrogen, a reaction gas supply line for supplying the reaction gas flowed out from the reactor, to the first reboiler, as a heating medium, and a reaction gas return line for returning, to the methanation device, the reaction gas that had exchanged heat with the absorption solution in the first reboiler.

Dependencies are inferred from the claim text.