Patent ID: 8679431

Claim:
An air pollution control system comprising: dust reduction equipment for reducing particulates from flue gas from a boiler; SO x removal equipment for reducing sulfur oxides from the flue gas after the dust reduction; a cooler which is provided on a downstream side of the SO x removal equipment, for reducing the sulfur oxides that remain in the flue gas and for decreasing a gas temperature; CO 2 recovery equipment including: an absorber for bringing CO 2 in the flue gas into contact with a CO 2 absorption liquid so as to be reduced; and a regenerator for causing the CO 2 absorption liquid to emit CO 2 so as to recover CO 2 and regenerate the CO 2 absorption liquid; a heat exchanger which is provided on an upstream side of the SO x removal equipment, for decreasing a temperature of the flue gas; and calcium carbonate spraying equipment for spraying calcium carbonate between the dust reduction equipment and the heat exchanger, wherein a mist generation material in the flue gas is converted from a gas state to a mist state, and the mist generation material in the mist state is neutralized by the calcium carbonate so as to be reduced.