The invention discloses a device and process for removing and recovering
sulfur dioxide in industrial
exhaust gas or
tail gas. The device comprises a booster fan, a
supergravity machine I, an amine supplementing tank, an amine supplementing pump, an extraction pump, an amine-rich tank, an amine-rich delivery pump, a flow regulation valve 1, a flow regulation valve 2, a flow regulation valve 3, a lean and rich amine
heat exchanger, a heat
recovery device, a
supergravity machine 2, a flow regulation valve 4, a liquid buffer
storage tank, a
reboiler, a condenser, a lean amine
heat exchanger, an amine liquid purification
system and a rich amine heater which are connected in a certain way. By adopting the device and process, removal, regeneration and
recovery of
sulfur dioxide in the industrialexhaust gas or
tail gas can be achieved, and the device and process have the advantages of saving space and being small in absorbent circulation volume, high in desulfurization efficiency, high in energy
utilization rate, low in
energy consumption, safe,
environmentally friendly and the like and can be applied to the field of desulfurization of
exhaust gas or
tail gas produced in various industrial processes.