Mitsubishi Hitachi Power Systems, Ltd.

Yoshihiro Kidera

Toshio Katsube

Hisayuki Orita

Nobuyoshi Mishima

Jun Shimamura

Kouichi Yokoyama

A combustion exhaust gas treatment system comprising: a heat exchanger (A) for recovering heat contained in the combustion exhaust gas into heat medium, an absorption column for obtaining COremoved gas by absorbing COin the combustion exhaust gas into absorbent, a heat exchanger (B) for applying heat recovered by heat medium to the COabsorbed absorbent, a desorption column for desorbing the absorbent by removing COfrom the COabsorbed absorbent, a flash tank for flash vaporizing the desorbed absorbent and a heat exchanger (E) for transferring heat from the desorbed absorbent to the COabsorbed absorbent, wherein the COabsorbed absorbent can be supplied from the absorption column to the desorption column via the heat exchanger (E) and the heat exchanger (B) in this order, and the desorbed absorbent can be supplied from the desorption column to the absorption column via the flash tank and the heat exchanger (E) in this order.

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Tokyo, Japan

Yoshihiro Kidera