The invention provides a spherical
solid amine multi-stage thin-layer bubbling
bed carbon dioxide trapping and desorbing
system and a spherical
solid amine multi-stage thin-layer bubbling
bed carbon dioxide trapping and desorbing method. In the
system, at least two groups of thin-layer bubbling
bed components are laminated in an adsorption device from top to bottom, and a main body of each group of thin-layer bubbling bed components is a gas distribution pore plate. One end of each gas distribution hole plate is a feeding end, the other end of each gas distribution hole plate is a discharging end, a discharging
pipe is arranged at the discharging end of each gas distribution hole plate, and the lower end of each discharging
pipe is open and is communicated with the feeding end of the next group of gas distribution hole plates. A gas outlet is formed in the top of the adsorption device, and a
flue gas inlet and an adsorbent
discharge pipe are arranged at the lower part of the adsorption device; and the top of the
desorption device is sequentially provided with a filter and a desorbed gas outlet, the lower part is provided with a heating coil and a
distributor, and the bottom is provided with a material outlet; a
cooling pipe and a distribution pipe are arranged in the cooling device, and the top of the cooling device is connected with a lifting pipe; and the upper end of the lifting pipe extends into the adsorption device. The
system is used for industrial
flue gas CO2 capture, the CO2 capture rate is high, and a high-purity CO2 product can be produced.