Integrated adsorption-desulphurisation-denitration system for low-temperature moving bed

摘要

Integrated adsorption-desulphurisation-denitration system for low-temperature moving beds, comprising an inlet line for flue gas containing SO2 and NOx, a flue gas suction fan (1), a flue gas waste heat recovery device (2), a flue gas cooling system (3), a low-temperature moving bed adsorption tower (4), a cooling device 6) and a desorption tower (5); wherein the inlet line for flue gas containing SO2 and NOx is connected to an inlet of the flue gas waste heat recovery device (2) via the flue gas suction fan (1), an outlet of the flue gas waste heat recovery device (2) being connected to an inlet of the flue gas cooling system (3) wherein an outlet of the flue gas cooling system (3) is connected to a flue gas inlet of the low-temperature moving bed adsorption tower (4), a porous adsorber outlet at the bottom of the low-temperature moving bed adsorption tower (4) being connected to an inlet of the desorption tower (5), being a porous bath sorber outlet of the desorption tower (5) is connected to a porous adsorber inlet at the top of the low-temperature moving bed adsorption tower (4), a gas outlet of the low-temperature moving bed adsorption tower (4) being connected to the inlet of the cold recovery apparatus (6); and wherein, as the flue gas cooling system (3), a three-stage type spray cooling structure is used.