CARBON DIOXIDE RECOVERY DEVICE AND CARBON DIOXIDE RECOVERY METHOD

摘要

PROBLEM TO BE SOLVED: To reduce heat energy consumption.SOLUTION: A carbon dioxide recovery device includes: an absorption tower which introduces carbon dioxide-containing gas and makes an absorption liquid absorb carbon dioxide; a regeneration tower which heats the absorption liquid with the carbon dioxide absorbed and diffuses vapor containing the carbon dioxide from the absorption liquid; a trapping part which traps and discharges the absorption liquid from the regeneration tower; a reboiler which heats the absorption liquid discharged from the trapping part and returns it to the regeneration tower; and a reactor which heats the absorption liquid discharged from the trapping part by using reaction heat generated by synthesis reaction between the carbon dioxide contained in the vapor and epoxide, and returns it to the regeneration tower.