Citation: WEI Shao-qing, TENG Yang, LI Xiao-hang, SU Yin-jiao, YANG Wei, ZHANG Kai. Comparison of mercury emission from around 300 MW coal-fired power generation units between pulverized boiler and circulating fluidized-bed boiler[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(8): 1009-1016. shu

Comparison of mercury emission from around 300 MW coal-fired power generation units between pulverized boiler and circulating fluidized-bed boiler

WEI Shao-qing ^1,2 ,
TENG Yang ^2,3 ,
LI Xiao-hang ³ ,
SU Yin-jiao ³ ,
YANG Wei ^2,4 ,
ZHANG Kai ^2,3,,

1.
Jinneng Electric Power Group Co., Ltd., Taiyuan 030002, China
2.
Shanxi Province Engineering Research Center of Clean Coal Combustion for Power Generation (Under Preparation), Taiyuan 030006, China
3.
Beijing Key Laboratory of Emission Surveillance and Control for Thermal Power Generation, North China Electric Power University, Beijing 102206, China
4.
Jinneng Group Changzhi Thermoelectricity Co., Ltd., Changzhi 046011, China

Corresponding author: ZHANG Kai, kzhang@ncepu.edu.cn
Received Date: 24 January 2017
Revised Date: 27 June 2017

Fund Project: the Major Special Project of Shanxi Province MD2015-01the National Natural Science Foundation of China U1610254The project was supported by the National Natural Science Foundation of China(U1610254), the Major Special Project of Shanxi Province (MD2015-01) and the Fundamental Research Funds for the Central Universities(2017MS020)the Fundamental Research Funds for the Central Universities 2017MS020

Figures(5)

The mercury emission characteristics are investigated and compared at a coal-fired power plant with 330 MW pulverized coal (PC) boiler and a coal-fired power plant with 350 MW circulating fluidized bed (CFB) boiler. EPA 30B method and Ontario method were used to test the mercury concentration in flue gas at the inlet of dust extraction unit, outlet of dust extraction unit, outlet of desulfurization unit, and outlet of wet dust extraction unit. The feed coal, bottom ash, fly ash and gypsum sample were collected at the same time together with gas sampling. The effect of the existing air pollution control device on mercury control was discussed toward PC and CFB units based on the mercury distribution data. The results show that the mercury concentration at fabric filter (FF) outlet of CFB power plant is decreased to 0.43 μg/m³ and the mercury removal efficiency of FF reaches 98.9%. A predominating portion of mercury is enriched in fly ash. With respect to a PC power plant, the mercury concentrations at inlet and outlet of ESP are both higher than those in the CFB power plant, and the mercury concentration gradually drops from electrostatic precipitator (ESP) inlet to wet flue gas desulfurization (WFGD) outlet. The mercury concentration reaches a low value of 0.42 μg/m³ at the WFGD outlet, and the mercury removal efficiency of ESP and WFGD is 75.0% and 22.4%, respectively, which can meet the ultra low mercury emission controlling.
- coal-fired power plant,
- mercury emission,
- mercury pollution monitor,
- pulverized coal boiler,
- circulating fluidized bed
1. [1]
  YANG Ai-yong, YAN Zhicao, HUI Runtang, SHEN Zhiyong, ZHUANG Ke. The abundance, distribution, and modes of occurrence of Hg in Chinese coals[J]. Sci Technol Eng, 2105,15(32):93-100.
2. [2]
  Ministry of Environmental Protection. GB13223—2011 Pollutant emission standard in thermal power plant[S]. Beijing: Standards Press of China, 2011.
3. [3]
  WU S, YANG W, ZHOU J, WANG H, XIE Z. Effects of properties of activated carbon on its activity for mercury removal and mercury desorption from used activated carbons[J]. Energy Fuels, 2015,29(3):1946-1950. doi: 10.1021/ef502868s
4. [4]
  WANG S, ZHANG Y, GU Y, WANG J, LIU Z, ZHANG Y, CAO Y, ROMERO C E, PAN W. Using modified fly ash for mercury emissions control for coal-fired power plant applications in China[J]. Fuel, 2016,181:1230-1237. doi: 10.1016/j.fuel.2016.02.043
5. [5]
  HONG Ya-guang, DUAN Yu-feng, ZHU Chun, SHE Min, DU Hong-fei. Experimental study on mercury adsorption of S-impregnated coconut shell activated carbon by duct injection[J]. J Eng Thermophys, 2015, 36(5): 1135-1138.
6. [6]
  ZHANG L, WANG S, MENG Y, HAO J. Influence of Mercury and Chlorine Content of Coal on Mercury Emissions from Coal-Fired Power Plants in China[J]. Environ Sci Technol, 2012,46(11):6385-6392. doi: 10.1021/es300286n
7. [7]
  XU Yue-yang, XUE Jian-ming, WANG Hong-liang, LI Bing, GUAN Yi-ming, LIU Jun. Research on mercury collaborative control by conventional pollutants purification facilities of coal-fired power plants[J]. Proc Chin Soc Electrical Eng, 2014,34(23):3924-3931.
8. [8]
  CHENG Le-ming, ZHOU Xing-long, ZHENG Cheng-hang, WANG Qin-hui, FANG Meng-xiang, SHI Zheng-lun, LUO Zhong-yang, CEN Ke-fa. Development of large-scale circulating fluidized bed boiler[J]. J Power Eng, 2008,28(6):817-826.
9. [9]
  HU Y, CHENG H. Control of mercury emissions from stationary coal combustion sources in China: Current status and recommendations[J]. Environ Pollut, 2016,218:1209-1221. doi: 10.1016/j.envpol.2016.08.077
10. [10]
  CHEN B, LI J S, CHEN G Q, WEI W D, YANG Q, YAO M T, SHAO J A, ZHOU M, XIA X H, DONG K Q, XIA H H, CHEN H P. China's energy-related mercury emissions: Characteristics, impact of trade and mitigation policies[J]. J Clean Prod, 2017,141:1259-1266. doi: 10.1016/j.jclepro.2016.09.200
11. [11]
  YU L, YIN L, XU Q, XIONG Y. Effects of different kinds of coal on the speciation and distribution of mercury in flue gases[J]. J Energy Inst, 2015,88(2):136-142. doi: 10.1016/j.joei.2014.06.006
12. [12]
  RALLO M, HEIDEL B, BRECHTEL K, MAROTO-VALER M M. Effect of SCR operation variables on mercury speciation[J]. Chem Engineer J, 2012,198-199:87-94. doi: 10.1016/j.cej.2012.05.080
13. [13]
  EOM Y, JEON S, NGO T, KIM J, LEE T. Heterogeneous mercury reaction on a selective catalytic reduction (SCR) catalyst[J]. Catal Lett, 2008,121(3/4):219-225.
14. [14]
  ZHOU Z, LIU X, ZHAO B, CHEN Z, SHAO H, WANG L, XU M. Effects of existing energy saving and air pollution control devices on mercury removal in coal-fired power plants[J]. Fuel Process Technol, 2015,131:99-108. doi: 10.1016/j.fuproc.2014.11.014
15. [15]
  CAO Y, CHENG Q, CHEN C, LIU M, WANG C, PAN W. Abatement of mercury emissions in the coal combustion process equipped with a fabric filter baghouse[J]. Fuel, 2008,87:3322-3330. doi: 10.1016/j.fuel.2008.05.010
16. [16]
  PUDASAINEE D, KIM J, YOON Y, SEO Y. Oxidation, reemission and mass distribution of mercury in bituminous coal-fired power plants with SCR, CS-ESP and wet FGD[J]. Fuel, 2012,93:312-318. doi: 10.1016/j.fuel.2011.10.012
17. [17]
  ZHANG L, ZHUO Y, CHEN L, XU X, CHEN C. Mercury emissions from six coal-fired power plants in China[J]. Fuel Process Technol, 2008,89(11):1033-1040. doi: 10.1016/j.fuproc.2008.04.002
18. [18]
  DUAN Yu-feng, JIANG Yi-man, YANG Li-guo, WANG Yun-jun. Experimental study on mercury emission and adsorption in circulating fluidized bed boiler[J]. Proc Chin Soc Electrical Eng, 2014,28(32):1-5.
19. [19]
  CHENG C, CAO Y, ZHANG K, PAN W. Co-effects of sulfur dioxide load and oxidation air on mercury re-emission in forced-oxidation limestone flue gas desulfurization wet scrubber[J]. Fuel, 2013,116:505-511.
20. [20]
  YUE C, WANG J, HAN L, CHANG L, HU Y, WANG H. Effects of pretreatment of Pd/AC sorbents on the removal of Hg⁰ from coal derived fuel gas[J]. Fuel Process Technol, 2015,135:125-132. doi: 10.1016/j.fuproc.2014.11.038
21. [21]
  RRUPP E C, WILCOX J. Mercury chemistry of brominated activated carbons-Packed-bed breakthrough experiments[J]. Fuel, 2014,117:351-353. doi: 10.1016/j.fuel.2013.09.017
22. [22]
  CHANG J C S, ZHAO Y. Pilot plant testing of elemental mercury reemission from a wet scrubber[J]. Energy Fuels, 2007,22(1):338-342.
23. [23]
  XIN M, GUSTIN M S, LADWIG K. Laboratory study of air-water-coal combustion product (fly ash and FGD solid) mercury exchange[J]. Fuel, 2006,85(16):2260-2267. doi: 10.1016/j.fuel.2006.01.029
1. [1]
  Hongbo Zhang , Yihong Tang , Suxia Zhang , Yuanting Li . Electrochemical Monitoring of Photocatalytic Degradation of Phenol Pollutants: A Recommended Comprehensive Analytical Chemistry Experiment. University Chemistry, 2024, 39(6): 326-333. doi: 10.3866/PKU.DXHX202310013
2. [2]
  Xinxin YU , Yongxing LIU , Xiaohong YI , Miao CHANG , Fei WANG , Peng WANG , Chongchen WANG . Photocatalytic peroxydisulfate activation for degrading organic pollutants over the zero-valent iron recovered from subway tunnels. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 864-876. doi: 10.11862/CJIC.20240438
3. [3]
  Zhiqiang XING , Jinling LIU , Mingmin SU , Lei ZHANG , Lijun YANG . CoNi dual-single-atom catalyst for electrocatalytic H₂O₂ production and in situ electro-Fenton degradation of pollutants. Chinese Journal of Inorganic Chemistry, 2025, 41(12): 2479-2490. doi: 10.11862/CJIC.20250181
4. [4]
  Qingtao CHEN , Xiangdong SHI , Xianghai RAO , Jiong LI , Xiaoyun QIN , Yiwen GUAN , Binyan ZOU , Guixia LIU , Fenghua CHEN . Employing polydopamine as an electron bridge to construct an S-scheme heterojunction and flexible film for highly efficient photocatalytic degradation of water pollutants. Chinese Journal of Inorganic Chemistry, 2026, 42(4): 747-759. doi: 10.11862/CJIC.20250286
5. [5]
  Yuanqing Wang , Yusong Pan , Hongwu Zhu , Yanlei Xiang , Rong Han , Run Huang , Chao Du , Chengling Pan . Enhanced Catalytic Activity of Bi₂WO₆ for Organic Pollutants Degradation under the Synergism between Advanced Oxidative Processes and Visible Light Irradiation. Acta Physico-Chimica Sinica, 2024, 40(4): 2304050-0. doi: 10.3866/PKU.WHXB202304050
6. [6]
  Changjun You , Chunchun Wang , Mingjie Cai , Yanping Liu , Baikang Zhu , Shijie Li . Improved Photo-Carrier Transfer by an Internal Electric Field in BiOBr/N-rich C₃N₅ 3D/2D S-Scheme Heterojunction for Efficiently Photocatalytic Micropollutant Removal. Acta Physico-Chimica Sinica, 2024, 40(11): 2407014-0. doi: 10.3866/PKU.WHXB202407014
7. [7]
  Jing Wang , Pingping Li , Yuehui Wang , Yifan Xiu , Bingqian Zhang , Shuwen Wang , Hongtao Gao . Treatment and Discharge Evaluation of Phosphorus-Containing Wastewater. University Chemistry, 2024, 39(5): 52-62. doi: 10.3866/PKU.DXHX202309097
8. [8]
  Gaihua Li , Donglian Liu , Xiuge Wang , Shuang Liu , Ning Zhang , Xuerui Tian . Teaching Design of Elemental Chemistry under the Concept of “Curriculum Ideology and Politics”: a Case of Mercury. University Chemistry, 2026, 41(2): 45-53. doi: 10.12461/PKU.DXHX202502025
9. [9]
  Hanmei Lü , Xin Chen , Qifu Sun , Ning Zhao , Xiangxin Guo . Uniform Garnet Nanoparticle Dispersion in Composite Polymer Electrolytes. Acta Physico-Chimica Sinica, 2024, 40(3): 2305016-0. doi: 10.3866/PKU.WHXB202305016
10. [10]
  Zhicheng JU , Wenxuan FU , Baoyan WANG , Ao LUO , Jiangmin JIANG , Yueli SHI , Yongli CUI . MOF-derived nickel-cobalt bimetallic sulfide microspheres coated by carbon: Preparation and long cycling performance for sodium storage. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 661-674. doi: 10.11862/CJIC.20240363
11. [11]
  Han Ren , Xingrui He , Xiangfeng Zeng , Zeyi Long , Guifeng Wang , Qixin Zhang , Xiaochuan Zou . From Ancient Alchemical Furnaces to Contemporary Technological Wonders. University Chemistry, 2026, 41(2): 328-334. doi: 10.12461/PKU.DXHX202503111
12. [12]
  Wan Li , Mei Shi , Yanping Ren , Faqiong Zhao , Min Hu , Xiuyun Wang , Juanjuan Song , Yongxian Fan , Dongcheng Liu , Xiuqiong Zeng , Wenwei Zhang , Weihong Li , Xiaohang Qiu , Yong Fan , Jianrong Zhang , Shuyong Zhang . Suggestions on Heating and Heating Instruments (Part V): Solid-State Synthesis and High-Temperature Heating Using Muffle and Tube Furnaces. University Chemistry, 2026, 41(3): 182-190. doi: 10.12461/PKU.DXHX202507046
13. [13]
  Yan ZHAO , Xiaokang JIANG , Zhonghui LI , Jiaxu WANG , Hengwei ZHOU , Hai GUO . Preparation and fluorescence properties of Eu³⁺-doped CaLaGaO₄ red-emitting phosphors. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1861-1868. doi: 10.11862/CJIC.20240242
14. [14]
  Han ZHANG , Jianfeng SUN , Jinsheng LIANG . Hydrothermal synthesis and luminescent properties of broadband near-infrared Na₃CrF₆ phosphor. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 349-356. doi: 10.11862/CJIC.20240098
15. [15]
  Xiaokang JIANG , Junliang MA , Yan ZHAO , Feng GAO , Changli LIU , Xingshen ZHAO , Hengwei ZHOU . Preparation and luminescent properties of Sm³⁺-doped La₂MgZrO₆ phosphors. Chinese Journal of Inorganic Chemistry, 2026, 42(2): 263-270. doi: 10.11862/CJIC.20250236
16. [16]
  Jinmei Zhou , Huamin Li , Yiru Wang , Wenwei Zhang , Xiuqiong Zeng , Juanjuan Song , Yongxian Fan , Dongcheng Liu , Yanping Ren , Faqiong Zhao , Mei Shi , Min Hu , Wan Li , Xiuyun Wang , Weihong Li , Xiaohang Qiu , Yong Fan , Jianrong Zhang , Shuyong Zhang . Suggestions on Operational Standards for Heating and Heating Instruments (Part IV): Microwave Heating and the Use of Microwave Ovens, Microwave Reactor and Microwave Digester. University Chemistry, 2026, 41(3): 172-181. doi: 10.12461/PKU.DXHX202507043
17. [17]
  Xuewei BA , Cheng CHENG , Huaikang ZHANG , Deqing ZHANG , Shuhua LI . Preparation and luminescent performance of Sr_1-xZrSi₂O₇∶xDy³⁺ phosphor with high thermal stability. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 357-364. doi: 10.11862/CJIC.20240096
18. [18]
  Yan ZHAO , Jiaxu WANG , Zhonghu LI , Changli LIU , Xingsheng ZHAO , Hengwei ZHOU , Xiaokang JIANG . Gd³⁺-doped Sc₂W3O₁₂: Eu³⁺ red phosphor: Preparation and luminescence performance. Chinese Journal of Inorganic Chemistry, 2025, 41(3): 461-468. doi: 10.11862/CJIC.20240316
19. [19]
  Cuiping HE , Zhuxuan LI , Yuqing SUN , Jie LIU , Shicheng XU , Zhanchao WU . Ca²⁺ doping induced crystal phase transition and spectral regulation of Ba₃P₄O₁₃: Eu²⁺ phosphor. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2299-2306. doi: 10.11862/CJIC.20250074
20. [20]
  Nian LIU , Biao ZHENG , Kun WANG , Chunbao ZHENG , Qingyan HAN , Enjie HE , Saidong XUE . Synthesis and spectroscopic performance of double perovskite Li_0.5La_0.5MgSrWO₆∶Mn⁴⁺ phosphors for plant growth lighting. Chinese Journal of Inorganic Chemistry, 2026, 42(1): 129-140. doi: 10.11862/CJIC.20250069

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1490)
HTML views(139)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142