Integrated adsorption desulphurisation system for low-temperature moving bed

摘要

Integrated adsorption-desulphurisation-desulphurisation system for low temperature moving bed, comprising an introduction line for SO2 and NOx containing flue gas, a flue-gas suction blower (1), a flue-gas recovery apparatus (2), a flue-gas cooling system (3), a low temperature moving bed adsorption tower (4), a refrigeration recovery apparatus (6) and a desorption tower (5);where the intake pipe for SO2 and NOx containing flue-gas through the flue-gas intake blower (1) is connected to an inlet of the flue-gas heat recovery device (2), an outlet of the flue-gas recovery device (2) is connected to an inlet of the flue-gas cooling system (3), where an exhaust outlet of the flue-gas cooling system (3) is connected to a flue-gas inlet of the low-temperature moving bed adsorption tower (4), with a porous adsorption outlet at the bottom of the low-temperature moving bed adsorption tower (4) connected to an inlet of the desorption tower (5),where a pore adsorption tower outlet (5) is connected to a pore adsorption outlet at the top of the low temperature bed adsorption tower (4), a gas outlet of the low temperature bed adsorption tower (4) is connected to the outlet of the cold recovery apparatus (6); andwhere the flue gas cooling system (3) uses a three-stage type spray cooling structure.