Molecular sieve adsorption method CO2 removal system and removal process

• Main Authors: HAN YU, WANG MENGYU, MU LUYING, LU XINGZHOU
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2022
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The system comprises an adsorption tower and a desorption tower, a raw flue gas inlet is formed in the bottom side of the adsorption tower, and a first outlet is formed in the top side of the adsorption tower; the desorption tower comprises a gas-solid separation device, a heat exchanger and a desorption device which are sequentially connected from top to bottom, the bottom end of the desorption device is communicated with the raw flue gas inlet, and the top end of the gas-solid separation device is communicated with the first outlet; and the gas-solid separation device is also connected with an exhaust pipeline for discharging purified flue gas. According to the present invention, the CO2 in the industrial flue gas containing the low-concentration CO2 can be removed by impregnating the molecular sieve micro-particles with the polyamine, the molecular sieve particles and the flue gas are completely mixed by combining the gas-solid two-phase flow reaction mechanism, the CO2, the SO2 and other acid gases in the