PROBLEM TO BE SOLVED: To provide a carbon dioxide recovery device that efficiently recovers carbon dioxide of exhaust gas discharged from a cogeneration device and supplies the recovered carbon dioxide to a plant cultivation facility by using an adsorbent without increasing the size the device and that prevents damage of the adsorbent as much as possible.SOLUTION: In a carbon dioxide recovery device for recovering carbon dioxide included in exhaust gas discharged from a cogeneration device and supplying the carbon dioxide to a plant cultivation facility (house), the discharged exhaust gas is pressure-fed to an adsorption tank 60 to adsorb carbon dioxide included in the exhaust gas to adsorbents 72 accommodated within the adsorption tanks, and the adsorbed carbon dioxide is desorbed from the adsorbents and is supplied to the plant cultivation facility. A plurality of straightening vanes 140, 140a for guiding the exhaust gas into the adsorption tank 60 are laminated in the direction of gravitational force, and the adsorbents 72 can be accommodated onto the laminated straightening vanes 140, 140a.SELECTED DRAWING: Figure 4
