US 11,925,898 B2
Flue gas low-temperature adsorption denitrification method
Shiqing Wang, Beijing (CN); Qixiang Fan, Beijing (CN); Shisen Xu, Beijing (CN); Shiwang Gao, Beijing (CN); Shaomin Wang, Beijing (CN); He Zhao, Beijing (CN); Minhua Jiang, Beijing (CN); Ping Xiao, Beijing (CN); Bin Huang, Beijing (CN); Hongwei Niu, Beijing (CN); Jinyi Wang, Beijing (CN); and Lianbo Liu, Beijing (CN)
Assigned to HUANENG CLEAN ENERGY RESEARCH INSTITUTE, Beijing (CN)
Filed by HUANENG CLEAN ENERGY RESEARCH INSTITUTE, Beijing (CN)
Filed on Apr. 5, 2021, as Appl. No. 17/222,994.
Application 17/222,994 is a continuation of application No. PCT/CN2020/076851, filed on Feb. 26, 2020.
Claims priority of application No. 201911039138.1 (CN), filed on Oct. 29, 2019.
Prior Publication US 2021/0220772 A1, Jul. 22, 2021
Int. Cl. B01D 53/56 (2006.01); B01D 53/04 (2006.01); B01D 53/26 (2006.01)
CPC B01D 53/56 (2013.01) [B01D 53/04 (2013.01); B01D 53/265 (2013.01); B01D 2253/102 (2013.01); B01D 2257/404 (2013.01); B01D 2257/80 (2013.01); B01D 2258/0283 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A flue gas low-temperature adsorption denitration method, comprising: pressurizing a flue gas that has been subjected to dust removal and desulfurization, precooling pressurized flue gas, cooling precooled flue gas to a temperature lower than room temperature by a flue gas cooling system (1), flowing the flue gas at the temperature lower than room temperature into a low-temperature denitrification system (2), performing physical adsorption denitrification in the low-temperature denitrification system (2), precooling the flue gas that has been subjected to dust removal and desulfurization with denitrificated flue gas, and flowing heat-absorbed clean flue gas into a chimney to be discharged.