Citation: DONG Yong, YU Min, WANG Peng, ZHANG Meng-ze, SUI Hui, CUI Lin, ZHANG Li-qiang, XU Xi-ren, MA Chun-yuan. Experimental study on mercury release behavior during coal pyrolysis with calcium chloride addition[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(1): 31-36. shu

Experimental study on mercury release behavior during coal pyrolysis with calcium chloride addition

1.
National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan 250061, China

Corresponding author: DONG Yong,
Received Date: 2 April 2013
Available Online: 26 July 2013
Fund Project: 国家自然科学基金(51176103)。 (51176103)

Mercury release and speciation behavior during coal pyrolysis with the addition of calcium chloride in different chlorine contents of 0.1%,0.3% and 0.5% in mass was studied in a temperature-programmed tube furnace. The concentration of gaseous mercury was monitored online with an online mercury analyzer. The results show that the temperature is a key factor for the mercury releasing during coal pyrolysis. With the rising of calcium chloride addition in coal, the percentage of Hg²⁺ increases, while the temperature of maximum mercury releasing and the release of total mercury decrease. The percentage of Hg²⁺ also increases to some degrees with the increase of O₂ percentage raised. Higher heating rate can promote the mercury release in coal and enhance the proportion of Hg²⁺ in flue gas. The study indicates that the calcium chloride addition into the low-chlorine coal can enhance the oxidation of Hg⁰.
- mercury,
- coal,
- calcium chloride,
- pyrolysis
1. [1]
  [1] 郑楚光, 张军营, 赵永椿, 刘晶, 郭欣.煤燃烧汞的排放及控制[D]. 北京: 科学出版社, 2010: 11. (ZHENG Chu-guang, ZHANG Jun-ying, ZHAO Yong-chun, LIU Jing, GUO Xin. Emission and control of mercury from coal combustion[D]. Beijing: Science Press, 2010: 11.)
2. [2]
  [2] TOOLE-O'NEIL B, TEWALT S J, FINKELMAN R B, AKERS D J. Mercury concentration in coal-unraveling the puzzle[J]. Fuel, 1999, 78(1): 47-54.
3. [3]
  [3] 任建莉, 周劲松, 骆仲泱, 岑可法. 煤中汞燃烧过程析出规律试验研究[J]. 环境科学学报, 2002, 22(3): 289-293. (REN Jian-li, ZHOU Jing-song, LUO Zhong-yang, CEN Ke-fa. Experimental study of mercury release behaviors in coal combustion[J]. Environmental Science & Technology, 2002, 22(3): 289-293.)
4. [4]
  [4] TAN Y, MORTAZAV I R, DUREAU B, DOUGLAS M A. An investigation of mercury distribution and speciation during coal combustion[J]. Fuel, 2004, 83(16): 2229-2236.
5. [5]
  [5] CHEN L, DUAN Y F, ZHUO Y Q, YANG L G, ZHANG L, YANG X H, YAO Q, JIANG Y M, XU X C. Mercury transformation across particulate control devices in six power plants of China: The co-effect of chlorine and ash composition[J]. Fuel, 2007, 86(4): 603-610.
6. [6]
  [6] 陶叶, 禚玉群, 张亮, 陈昌和, 徐旭常. HCl与NO对汞氧化反应影响的实验研究[J]. 工程热物理学报, 2010, 31(2): 355-359. (TAO Ye, ZHOU Yu-qun, ZHANG Liang, CHEN Chang-he, XU Xu-chang. Experimental study of the effects of HCl and NO on mercury oxidation[J]. Journal of Engineering Thermophysics, 2010, 31(2): 355-359.)
7. [7]
  [7] LIU K, GAO Y, KELLIE S, PAN W P, RILEY J T. A study of mercury removal in FBC systems fired with high-chlorine coals[J]. Combust Sci Technol, 2001, 164(1): 145-162.
8. [8]
  [8] CHU P. An assessment of mercury emissions from US coal-fired power plants: CA, 1000608[P]. 2000-10-10.
9. [9]
  [9] Information collection request for electric utility steam-generating unit Hg emissions information collection effort[Z].U.S. Environmental Protection Agency, Washington, DC, 1999.
10. [10]
  [10] VIDIC R D, SILER D P. Vapor-phase elemental mercury adsorption by activated carbon impregnated with chloride and chelating agents[J]. Carbon, 2001, 39(1): 3-14.
11. [11]
  [11] CHAO C C, PONTANIO S J. Adsorbents for mercury removal from flue gas: WO, 2006099291A2[P]. 2006-09-21.
12. [12]
  [12] ZENG H C, JIN F, GUO J. Removal of elemental mercury from coal combustion flue gas by chloride-impregnated activated carbon[J]. Fuel, 2004, 83(1): 143-146.
13. [13]
  [13] ZHUANG Y, THOMPSON J S, ZYGARLICKE C J, PAVLISH J H. Impact of calcium chloride addition on mercury transformations and control in coal flue gas[J]. Fuel, 2007, 86(15): 2351-2359.
14. [14]
  [14] 潘卫国, 吴江, 王文欢, 何平, 张赢丹, 冷雪峰, 沈敏强. 添加NH₄Cl对煤燃烧生成Hg和NO影响的研究[J]. 中国电机工程学报, 2009, 29(29): 41-46. (PAN Wei-guo, WU Jiang, WANG Wen-huan, HE Ping, ZHANG Ying-dan, LENG Xue-feng, SHEN Min-qiang. Study on the effect of NH₄Cl addition on Hg and NO produced by coal combustion[J]. Proceedings of the CSEE, 2009, 29(29): 41-46.)
15. [15]
  [15] 吴怡卫. 石灰石-石膏湿法烟气脱硫废水处理的研究[J]. 中国电力, 2006, 4(39): 75-78. (WU Yi-wei. Study of limestone-gypsum wet FGD wastewater treatment[J]. Electric Power, 2006, 4(39): 75-78.)
16. [16]
  [16] 周卫青, 李进. 火电厂石灰石湿法烟气脱硫废水处理方法[J]. 电力环境保护, 2006, 22(1): 29-31. (ZHOU Wei-qing, LI Jin. Methods to treat waste water from limestone wet flue gas desulfurization in power plant[J]. Electric Power Environmental Protection, 2006, 22(1): 29-31.)
17. [17]
  [17] 刘建权, 赵峰华, 刘璟, 李建国. 氧弹燃烧-离子色谱法测定煤中氯含量[J]. 分析化学研究报告, 2009, 37(8): 1152-1156. (LIU Jian-quan, ZHAO Feng-hua, LIU Jin, LI Jian-guo. Measurement of the chlorine content in coal with oxygen bomb combustion-ion chromatographic[J]. Chinese Journal of Analytical Chemistry, 2009, 37(8): 1152-1156.)
18. [18]
  [18] 唐修义, 陈萍. 中国煤中的氯[J]. 中国煤田地质, 2002, 14(B07): 33-36. (TANG Xiu-yi, CHEN Ping. Chlorine in coal in China[J]. Coal Geology of China, 2002, 14(B07): 33-36.)
19. [19]
  [19] 况敏, 杨国华, 胡文佳, 陈武军. 燃煤电厂烟气脱汞技术现状分析与展望[J]. 环境科学与技术, 2008, 31(5): 66-69. (KUANG Min, YANG Guo-hua, HU Wen-jia, CHEN Wu-jun. Analysis and prospect of technology for removing mercury from flue gas[J]. Environmental Science & Technology, 2008, 31(5): 66-69.)
20. [20]
  [20] 郭少青, 杨建丽, 刘振宇. 热解气氛对晋城煤中汞析出的影响[J]. 燃料化学学报, 2008, 36(4): 397-400. (GUO Shao-qing, YANG Jian-li, LIU Zhen-yu. Influence of atmosphere on mercury release during Jin cheng coal pyrolysis[J]. Journal of Fuel Chemistry and Technology, 2008, 36(4): 397-400.)
21. [21]
  [21] 丘纪华. 煤粉在热分解过程中比表面积和孔隙结构的变化[J].燃料化学学报, 1994, 22(3): 316-319. (QIU Ji-hua. Variation of surface area and pore structure of pulverized coal during pyrolysis[J]. Journal of Fuel Chemistry and Technology, 1994, 22(3): 316-319.)
22. [22]
  [22] 王明敏, 张建胜, 张守玉. 热解条件下对煤焦比表面积及孔隙分布的影响[J]. 煤炭学报, 2008, 33(1): 76-79. (WANG Ming-min, ZHANG Jian-sheng, ZHANAG Shou-yu.Effect of pyrolysis conditions on the char surface area and pore distribution[J]. Journal of China Coal Society, 2008, 33(1): 76-79.)
23. [23]
  [23] 蒋旭光, 徐旭, 严建华, 池涌, 岑可法. 我国煤中氯含量分布特性的试验研究[J]. 煤炭转化, 2001, 24(2): 58-60. (JIANG Xu-guang, XU Xu, YAN Jian-hua, CHI Yong, Cen Ke-fa. Experimental research of chlorine distribution properties in Chinese coal[J]. Coal Convertion, 2001, 24(2): 58-60.)
1. [1]
  Ziliang KANG , Jiamin ZHANG , Hong AN , Xiaohua LIU , Yang CHEN , Jinping LI , Libo LI . Preparation and water adsorption properties of CaCl₂@MOF-808 in-situ composite moulded particles. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2133-2140. doi: 10.11862/CJIC.20240282
2. [2]
  Zhaohong Zuo , Wenhao Qiu , Kehan Peng , Haowen Luo , Yihan Wang , Yunren Shi . 聚乙烯热解的AI辅助ReaxFF动力学虚拟仿真实验. University Chemistry, 2026, 41(10): 296-308. doi: 10.12461/PKU.DXHX202510010
3. [3]
  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
4. [4]
  Haobin Zhou , Shuai Du , Xuesong Guo , Yue Wang , Qin Zhong , Tong Wang , Yuzhi Wang , Shuangyan Huan , Hailong Yan , Kun Li . 阳极溶出伏安法测定水中微量镉的无汞化改进. University Chemistry, 2026, 41(5): 275-284. doi: 10.12461/PKU.DXHX202511142
5. [5]
  Jiahe Peng , Dongxiao Wen , Jizhou Jiang . Sustainable production of aviation fuel cycloalkanes from plastic waste under ambient-pressure conditions. Acta Physico-Chimica Sinica, 2026, 42(9): 100341-0. doi: 10.1016/j.actphy.2026.100341
6. [6]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
7. [7]
  Yongqing Xu , Yuyao Yang , Mengna Wu , Xiaoxiao Yang , Xuan Bie , Shiyu Zhang , Qinghai Li , Yanguo Zhang , Chenwei Zhang , Robert E. Przekop , Bogna Sztorch , Dariusz Brzakalski , Hui Zhou . Review on Using Molybdenum Carbides for the Thermal Catalysis of CO₂ Hydrogenation to Produce High-Value-Added Chemicals and Fuels. Acta Physico-Chimica Sinica, 2024, 40(4): 2304003-0. doi: 10.3866/PKU.WHXB202304003
8. [8]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395
9. [9]
  Yujie Li , Jiayu Liu , Wenbo Liu , Tingbin Zhang , Kangyu Shen , Jia Luo , Yuan He , Mingli Peng , Xiaoli Liu , Haiming Fan . The magnetothermal strike team: chronicles of the cancer war. University Chemistry, 2026, 41(7): 219-226. doi: 10.12461/PKU.DXHX202506067
10. [10]
  Rohit Kumar , Anita Sudhaik , Aftab Asalam Pawaz Khan , Van Huy Neguyen , Archana Singh , Pardeep Singh , Sourbh Thakur , Pankaj Raizada . Designing tandem S-scheme photo-catalytic systems: Mechanistic insights, characterization techniques, and applications. Acta Physico-Chimica Sinica, 2025, 41(11): 100150-0. doi: 10.1016/j.actphy.2025.100150
11. [11]
  Mengying Zhang , Daiqiang Fei , Xiaoqian Liu , Xiaomin Sun , Yu Bai , Yu Wang , Chade Lv , Dianpeng Qi , Lei Wang . The fabrication of liquid-metal-based micro/nano robots and their biomedical applications. University Chemistry, 2026, 41(7): 154-160. doi: 10.12461/PKU.DXHX202504080
12. [12]
  Min Hu , Yinghuan Li , Yanhong Bai , Yanping Ren , Juanjuan Song , Yongxian Fan , Dongcheng Liu , Xiuqiong Zeng , Faqiong Zhao , Wenwei Zhang , Mei Shi , Wan Li , Xiuyun Wang , Weihong Li , Xiaohang Qiu , Yong Fan , Jianrong Zhang , Shuyong Zhang . Suggestions on the Method of Hydrothermal-Solventthermal Synthesis and Their Operation Standards. University Chemistry, 2026, 41(3): 208-215. doi: 10.12461/PKU.DXHX202507034
13. [13]
  Fangyu Leng , Jian Zhang , Yuwen Zhang , Yuchun Jiang , Xiaohong Chang , Jie Wei . 以废治废：回收锌锰电池负极材料催化糖解PET塑料的综合实验教学. University Chemistry, 2026, 41(5): 319-329. doi: 10.12461/PKU.DXHX202510077
14. [14]
  Kexin Yan , Zhaoqi Ye , Lingtao Kong , He Li , Xue Yang , Yahong Zhang , Hongbin Zhang , Yi Tang . Seed-Induced Synthesis of Disc-Cluster Zeolite L Mesocrystals with Ultrashort c-Axis: Morphology Control, Decoupled Mechanism, and Enhanced Adsorption. Acta Physico-Chimica Sinica, 2024, 40(9): 2308019-0. doi: 10.3866/PKU.WHXB202308019
15. [15]
  Yang Lv , Yingping Jia , Yanhua Li , Hexiang Zhong , Xinping Wang . Integrating the Ideological Elements with the “Chemical Reaction Heat” Teaching. University Chemistry, 2024, 39(11): 44-51. doi: 10.12461/PKU.DXHX202402059
16. [16]
  Yang ZHOU , Lili YAN , Wenjuan ZHANG , Pinhua RAO . Thermal regeneration of biogas residue biochar and the ammonia nitrogen adsorption properties. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1574-1588. doi: 10.11862/CJIC.20250032
17. [17]
  Zehua Zhao , Xiaoyan An , Jinrong Xu , Ling Yang , Hao Zhao , Zhongyun Wu . Independent Development and Application of Calorimetric Experiment Data Acquisition and Processing Software. University Chemistry, 2025, 40(11): 402-408. doi: 10.12461/PKU.DXHX202505045
18. [18]
  Quan Liu , Jian Feng , Yuekun Qu , Jiayao Bai , Xunian Ren , Qi Wang , Haitao Xu , Shengrui Zhang . “神笔马良”——基于热致变色染料的创意绘画科普演示实验. University Chemistry, 2026, 41(5): 149-158. doi: 10.12461/PKU.DXHX202511095
19. [19]
  Peipei DING , Jingying DUAN , Haoran XU , Xinru FANG , Xingyu LIU , Juntao YAN , Chunlei WANG . Preparation and adsorption properties of poplar catkin-derived porous carbon by ethanol solvothermal method. Chinese Journal of Inorganic Chemistry, 2026, 42(6): 1203-1214. doi: 10.11862/CJIC.20250370
20. [20]
  Limei CHEN , Mengfei ZHAO , Lin CHEN , Ding LI , Wei LI , Weiye HAN , Hongbin WANG . Preparation and performance of paraffin/alkali modified diatomite/expanded graphite composite phase change thermal storage material. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 533-543. doi: 10.11862/CJIC.20230312

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(1489)
HTML views(126)

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