| 摘要 |
An object of the present invention is to provide an exhaust gas treatment system that effectively use heat recovered from an exhaust gas without any limitation in a CO 2 chemical absorption equipment that requires enormous heat energy, and thus enabling reduction in running cost of the CO 2 chemical absorption equipment. Disclosed is an exhaust gas treatment system with a CO 2 chemical absorption equipment, which is provided with a heat recovery device that recovers exhaust heat from an exhaust gas discharged from a boiler; and a CO 2 chemical absorption equipment that absorbs CO 2 in the exhaust gas by bringing the exhaust gas into contact with an amine absorbing solution in a carbon dioxide (CO 2 ) absorption column, heats the absorbing solution that have absorbed CO 2 thereby releasing CO 2 into a CO 2 regeneration column, heats the absorbing solution after release of CO 2 via a reboiler, and then circulates the absorbing solution in a CO 2 absorption column; the exhaust gas treatment system comprising a heat exchange unit that applies heat recovered by the heat recovery device to the absorbing solution that is delivered to the reboiler from the CO 2 regeneration column of the CO 2 chemical absorption equipment. |
