An object of the present invention is to provide a solid CO 2 adsorbent material system, which recovers CO 2 using a solid adsorbent material and enables efficient heat recovery and reduction in the amount of heat used. A solid CO 2 adsorbent material system includes: a boiler which burns a fossil fuel to generate steam and exhaust gas; steam turbines which are driven by the steam; a condenser which condenses the steam after driving the steam turbines; a deaerator and feed water heaters which heat water condensed by the condenser using steam of the steam turbines; and a packed tower in which a solid adsorbent material for adsorbing CO 2 is placed and CO 2 in the exhaust gas is adsorbed by the solid adsorbent material when the exhaust gas is supplied thereto. To the packed tower, water condensed by the condenser is supplied as a heat transfer medium. The water as a heat transfer medium transfers heat to the solid adsorbent material in a non-contact manner to cool the solid adsorbent material having CO 2 adsorbed thereon, and then is discharged from the packed tower and supplied to the feed water heaters or the deaerator.
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