Dehumidifier and carbon dioxide recovery system

Abstract

To provide a dehumidifier that can reduce energy consumption in a carbon dioxide capture system that directly captures carbon dioxide from the atmosphere, and a carbon dioxide capture system equipped with a dehumidifier. [Solution] The dehumidifier 3 comprises a compressor 311 that compresses a heat transfer medium, a condenser 312 that releases the heat from the heat transfer medium compressed by the compressor 311 to the outside, an expansion valve 313 that reduces the pressure of the heat transfer medium supplied from the condenser 312, an evaporator 314 that evaporates the heat transfer medium supplied from the expansion valve 313 and absorbs heat from the outside, and a blower 315 that takes in air and sends the pre-treated gas, which has been cooled by passing through the evaporator 314 and from which moisture has been removed, toward the carbon dioxide recovery device of the carbon dioxide recovery system.