NOVELTY - The gas treatment equipment has pre-heater (2), carbon dioxide absorption reactor (6), process-gas heat recovery device (8), carbon dioxide discharge reactor (12), heating gas generation device (10) and discharge gas heat recovery device (9).    USE - The equipment is useful for treating gas containing carbon dioxide generated from reformation processing apparatus of carbon containing substance such as biological treatment equipment such as methane fermentation and hydrogen production apparatus, combustion apparatus such as boiler, combustion furnace, gas turbine, gas engine and fuel cell.    ADVANTAGE - The gas treatment equipment enables efficient separation and recovery of carbon dioxide with suppressed consumption of energy, by recovering heat energy and inhibiting the discharge of heat energy.    DETAILED DESCRIPTION - The gas treatment equipment has pre-heater, carbon dioxide absorption reactor, process-gas heat recovery device, carbon dioxide discharge reactor, heating gas generation device and discharge gas heat recovery device. The pre-heater pre-heats the to-be-processed gas (1). The carbon-dioxide absorption reactor is stored with carbon dioxide absorber (5) containing lithium complex oxide which carries out reversible absorption discharge of carbon dioxide. The carbon-dioxide absorption reactor makes the carbon-dioxide absorber to absorb carbon dioxide contained in the pre-heated to-be-processed gas. The process-gas heat recovery device collects the heat of process gas (7) after absorption of carbon dioxide emitted from the carbon-dioxide absorption reactor and supplies to the pre-heater. The carbon-dioxide discharge reactor heats the absorption settled carbon-dioxide absorber (11) by the supplied heating gas (13) and discharges carbon dioxide. The heating gas generation device generates heating gas supplied to the carbon-dioxide discharge reactor. The discharge gas heat recovery device recovers the heat of discharged carbon dioxide (14) from the carbon dioxide discharge reactor. The gas treatment equipment is used for separating and recovering a portion of carbon dioxide contained in the to-be-processed gas.    DESCRIPTION OF DRAWING(S) - The figure shows the outline structure of the gas treatment equipment.    To-be-processed gas (1)    Pre-heater (2)    Carbon dioxide absorber (5)    Carbon dioxide absorption reactor (6)    Process gas (7)    Process gas heat recovery device (8)    Discharge gas heat recovery device (9)    Heating gas generation device (10)    Absorption settled carbon dioxide absorber (11)    Carbon dioxide discharge reactor (12)    Heating gas (13)    Discharged carbon dioxide (14)