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Title:
FLUE GAS INTEGRATED DESULFURIZATION AND DENITRATION METHOD BASED ON LOW-TEMPERATURE ADSORPTION PRINCIPLE
Document Type and Number:
WIPO Patent Application WO/2021/232693
Kind Code:
A1
Abstract:
A flue gas integrated desulfurization and denitration method based on a low-temperature adsorption principle. The method comprises the following steps of: reducing the temperature of flue gas to be below room temperature by using a flue gas cooling system (1); removing moisture in the flue gas by using a dehumidification system; then introducing the flue gas into an SO2 and NOx adsorption tower system (2); and adsorbing SO2 and NOx in the flue gas by means of activated coke, activated carbon, molecular sieves or diatom ooze in the SO2 and NOx adsorption tower system (2), so as to implement flue gas integrated desulfurization and denitration based on the low-temperature adsorption principle. According to the method, the SO2 and NOx in the flue gas can be effectively adsorbed and removed at the same time in a low-temperature environment having a temperature of below the room temperature, and the loading amount of an adsorbent and the size of the adsorption tower are reduced.

Inventors:
WANG SHIQING (CN)
XU SHISEN (CN)
GAO SHIWANG (CN)
ZHAO HE (CN)
JIANG MINHUA (CN)
XIAO PING (CN)
HUANG BIN (CN)
NIU HONGWEI (CN)
WANG JINYI (CN)
LIU LIANBO (CN)
GUO DONGFANG (CN)
Application Number:
PCT/CN2020/126259
Publication Date:
November 25, 2021
Filing Date:
November 03, 2020
Export Citation:
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Assignee:
CHINA HUANENG GROUP CO LTD (CN)
HUANENG CLEAN ENERGY RES INST (CN)
International Classes:
B01D53/04
Foreign References:
CN111569603A2020-08-25
CN111495111A2020-08-07
CN111841065A2020-10-30
CN111495112A2020-08-07
CN111495113A2020-08-07
CN111569604A2020-08-25
CN210934359U2020-07-07
CN111495118A2020-08-07
CN110743313A2020-02-04
CN101805804A2010-08-18
CN110743312A2020-02-04
CN107126811A2017-09-05
CN210171198U2020-03-24
US20190300798A12019-10-03
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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