Carbon dioxide absorbent, application thereof and method for treating carbon dioxide in flue gas

• Main Authors: WANG TAO, MENG RUIHONG, ZHANG SHUAI, HAN TAO, LUO ZHONGYANG, CEN KEFA, GAO XIANG, XU DONG, YU XUEHAI, FENG LEI, SHI XIAOHONG, FANG MENGXIANG, FENG BAIYANG, CHANG LIN
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to the technical field of mixed gas separation and purification, and discloses a carbon dioxide absorbent, application thereof and a method for treating carbon dioxide in flue gas. The absorbent comprises a tertiary amine compound, a primary amine compound, a piperazine compound, an anti-degradation agent and water, the content of the tertiary amine compound is 20-30% by weight, the content of the primary amine compound is 10-15% by weight, the content of the piperazine compound is 2-10% by weight, the content of the anti-degradation agent is 0.1-1.5% by weight, and the content of the water is 52-63% by weight. The carbon dioxide absorbent has the advantages of high absorption capacity, high regeneration rate, low regeneration energy consumption, excellent degradation resistance and great application prospect. 本发明涉及混合气体分离和净化技术领域，公开了一种二氧化碳吸收剂及其应用和处理烟气中二氧化碳的方法。所述吸收剂包括叔胺类化合物、伯胺类化合物、哌嗪类化合物、抗降解剂和水；叔胺类化合物的含量为20-30重量％，伯胺类化合物的含量为10-15重量％，哌嗪类化合物的含量为2-10重量％，抗降解剂的含量为0.1-1.5重量％，水的含量为52-63重量％。所述二氧化碳吸