Title:
NEAR-ZERO EMISSION-TYPE FLUE GAS MULTI-POLLUTANT INTEGRATED REMOVAL SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2022/032860
Kind Code:
A1
Abstract:
A near-zero emission-type flue gas multi-pollutant integrated removal system and method, comprising an economizer (1), an air preheater (2), an electrostatic precipitator (3), a flue gas cooler (4) and a low-temperature adsorption tower (5). A shell-pass inlet of the economizer (1) is connected to a boiler flue gas, a tube-pass inlet is connected to boiler feed water, and a shell-pass outlet of the economizer (1) is connected to a tube-pass inlet of the air preheater (2). A tube-pass inlet of the air preheater (2) is connected to a boiler air inlet, and a tube-pass outlet of the air preheater (2) is connected to the electrostatic precipitator (3). An ash discharge port is provided at the bottom part of the electrostatic precipitator (3). A flue gas outlet of the electrostatic precipitator (3) is connected to the flue gas cooler (4). The bottom part of the flue gas cooler (4) is provided with a condensed water outlet, and a cold flue gas outlet on the top part is connected to the low-temperature adsorption tower (5). A clean flue gas outlet is provided at the tail part of the low-temperature adsorption tower (5). The dissolution and adsorption characteristics of pollutant components in the flue gas at low temperature are used to remove pollutants, and SO2, SO3, NO, NO2, HCl, HF, Hg and VOCs in the flue gas can be simultaneously removed, and near-zero emissions are achieved.
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Inventors:
WANG SHIQING (CN)
GAO SHIWANG (CN)
LIU LIANBO (CN)
WANG JINYI (CN)
NIU HONGWEI (CN)
GUO DONGFANG (CN)
GAO SHIWANG (CN)
LIU LIANBO (CN)
WANG JINYI (CN)
NIU HONGWEI (CN)
GUO DONGFANG (CN)
Application Number:
PCT/CN2020/121308
Publication Date:
February 17, 2022
Filing Date:
October 15, 2020
Export Citation:
Assignee:
HUANENG CLEAN ENERGY RES INST (CN)
International Classes:
B01D53/02; B01D5/00; B01D47/06
Foreign References:
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| CN103264996A | 2013-08-28 | |||
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| CN208519756U | 2019-02-19 | |||
| CN204648188U | 2015-09-16 | |||
| CN111569604A | 2020-08-25 | |||
| CN110743312A | 2020-02-04 | |||
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| CN111495118A | 2020-08-07 | |||
| CN210934359U | 2020-07-07 | |||
| CN212395927U | 2021-01-26 |
Attorney, Agent or Firm:
XI'AN TONG DA PATENT AGENCY CO., LTD. (CN)
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