Exhaust gas processing equipment and gas turbine plant

Exhaust gas processing equipment comprising:

• an exhaust line through which an exhaust gas discharged from a boiler circulates;
• a carbon dioxide recovery device that is provided on the exhaust line, and that recovers carbon dioxide contained in the exhaust gas;
• and
• an exhaust gas heating device that is provided on a downstream side of the carbon dioxide recovery device in the exhaust line, and that heats the exhaust gas,
• wherein the carbon dioxide recovery device includes a first medium line through which a first medium circulates,
• a second medium line through which a second medium having a temperature higher than that of the first medium circulates,
• an absorber through which an absorption liquid chemically absorbing the carbon dioxide in the exhaust gas by coming into contact with the exhaust gas circulates,
• a regenerator that regenerates the absorption liquid by heating the absorption liquid chemically absorbing the carbon dioxide in the absorber, and
• an absorption liquid supply line serving as the first medium line that supplies the absorption liquid regenerated in the regenerator to the absorber, and
• the exhaust gas heating device includes
• a heat exchanger provided on the absorption liquid supply line, and serving as a first heating section that heats the exhaust gas by exchanging heat between the absorption liquid as the first medium and the exhaust gas, and
• a second heating section that further heats the exhaust gas passing through the first heating section by heat exchange with the second medium.