RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT

LIU Pengyu; LI Debo; LIU Yanfeng; QUE Zhengbin; MIAO Jianjie; CHEN Zhaoli

doi:10.13205/j.hjgc.202210029

Volume 40 Issue 10

Oct. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(10): 224-232

LIU Pengyu, LI Debo, LIU Yanfeng, QUE Zhengbin, MIAO Jianjie, CHEN Zhaoli. RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 224-232. doi: 10.13205/j.hjgc.202210029

Citation:

LIU Pengyu, LI Debo, LIU Yanfeng, QUE Zhengbin, MIAO Jianjie, CHEN Zhaoli. RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 224-232. doi: 10.13205/j.hjgc.202210029

Citation:

LIU Pengyu, LI Debo, LIU Yanfeng, QUE Zhengbin, MIAO Jianjie, CHEN Zhaoli. RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(10): 224-232. doi: 10.13205/j.hjgc.202210029

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RESEARCH PROGRESS ON NUMERICAL SIMULATION OF SCR DENITRIFICATION SYSTEM IN A COAL-FIRED POWER PLANT

doi: 10.13205/j.hjgc.202210029

1. China Energy Engineering Group Guangdong Electric Power Design Institute Co., Ltd, Guangzhou 510663, China;
2. China Southern Grid Power Technology Co., Ltd, Guangzhou 510080, China;
3. School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China;
4. National Engineering Laboratory of Biomass Power Generation Equipment, North China Electric Power University, Beijing 102206, China

Received Date: 2021-11-13

Abstract

Abstract

After the ultra-low emission transformation of China's active coal-fired power plants, the NO_x emission of some of them doesn't meet the standard. In order to solve the practical problems of the projects in coal-fired power plants, we summarized the research status of numerical simulation of SCR denitration system in coal-fired power plants. The research shows that in order to further improve the accuracy of numerical simulation of SCR denitration system, non-uniform flue gas inlet boundary conditions and coke combustion model based on ash layer suppression should be adopted; the relationship between the thickness of the deflector and the flue gas flow characteristics in the flue should be considered in the reconstruction of the deflector; the transformation of the ammonia injection system and mixer is an important reason for the high transformation cost and induced draft fan energy consumption. The comparative study between the engineering transformation and the increased cost of energy consumption after the transformation and the cost saved on catalyst will be a hot research direction in the future. The technical route for the engineering transformation of SCR denitration system in coal-fired power plants is proposed, which can provide theoretical guidance and technical support for the engineering practice.
- coal-fired power plant,
- numerical simulation,
- SCR denitrification system,
- deflector,
- ammonia injection optimization,
- mixer

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References(35)

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