Citation: XU Bing, FU Jia, CHEN Huan-li, CHEN Lun-jian, XING Bao-lin. Effect of limestone on physicochemical properties of the residual chars from simulated underground gasification of lignite[J]. Journal of Fuel Chemistry and Technology, ;2020, 48(6): 655-662. shu

Effect of limestone on physicochemical properties of the residual chars from simulated underground gasification of lignite

Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, China

Corresponding author: XING Bao-lin, baolinxing@hpu.edu.cn
Received Date: 16 April 2020
Revised Date: 21 May 2020

Fund Project: Doctoral Foundation of Henan Polytechnic University B2019-46National Science Foundation of China U1803114the Key Scientific and Technological Project of Henan Province 202102210183Key Scientific Research Projects of Colleges and Universities of Henan Province 20A530003Research Fund of Henan Key Laboratory of Coal Green Conversion CGCF201903The project was supported by National Science Foundation of China (U1803114), the Key Scientific and Technological Project of Henan Province (202102210183), Key Scientific Research Projects of Colleges and Universities of Henan Province (20A530003), Research Fund of Henan Key Laboratory of Coal Green Conversion (CGCF201903) and Doctoral Foundation of Henan Polytechnic University (B2019-46)

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Based on the possible effect of limestone on composition and structure of coal chars during underground coal gasification (UCG), gasification of lignite by steam with different dosages of limestone of 0-30% (mass fraction) was performed in a simulated UCG test system. The composition, specific surface area (S_BET) as well as pore structure properties, microcrystal structure and surface functional groups of the obtained residual chars were examined by low-temperature nitrogen adsorption, XRD and FT-IR, etc. The results show that composition of coal char is significantly influenced by limestone. Limestone contributes to development of micro-pore toward meso-pore, increases S_BET and total pore volume (v_t) of residual chars. When dosage of limestone increases from 0 to 30%, the S_BET of residual chars increases by 21.91%, and the ratio of meso-pore volume to total pore volume rises percentage points of 21.49. XRD analysis shows that the presence of calcium destroys aromatic structure of coal char, increases both degree of disorder and interplanar spacing (d₀₀₂), and inhibits graphitization tendency of coal char. FT-IR analysis indicates that hydroxyl group of residual chars is reduced with the presence of limestone.
- underground coal gasification,
- residual coke,
- limestone,
- pore structure properties,
- microcrystal structure,
- surface functional groups
1. [1]
  LV Qing-gang, LI Shi-yuan, HUANG Can-ran. Current situation and development suggestions of coal clean and efficient combustion technology in industry field[J]. Bull Chin Acad Sci, 2019,34(4):18-26.
2. [2]
  SHI Ya-wei, BAI Zhong-hua, JIANG Jun-qing, ZHANG Xiang-zhou, YANG Wen-hui, ZHAO Yu-bing, MU Jing-jing. Research status and prospect of mercury removal technology from flue gas in China[J]. Clean Coal Technol, 2014,20(2):104-108.
3. [3]
  LIANG Jie. Development overview of underground coal gasification technology[J]. Coal Eng, 2017,49(8):1-4.
4. [4]
  GE Shi-rong. Chemical mining technology for deep coal resources[J]. J China Min Technol Univ, 2017,46(4):679-691.
5. [5]
  BHUTTO A W, BAZMI A A, ZAHEDI G. Underground coal gasification:From fundamentals to applications[J]. Prog Energy Combust Sci, 2013,39(1):189-214.
6. [6]
  LIU Shu-qin, SHI Su-zhen, FENG Guo-xu, FENG Jian, LI Ming-xuan, GUO Wei. Geological site selection and evaluation for underground coal gasification[J]. J China Coal Soc, 2019,44(8):2531-2538.
7. [7]
  HAN Lei, QIN Yong, WANG Zuo-tang. Geological consideration for site selection of underground coal gasifier[J]. Coal Geol Explor, 2019,47(2):44-50.
8. [8]
  LIU Shu-qin, NIU Mao-fei, YAN Yan, JIN Xin, HE Yan, GAO Bao-ping, WANG Zhi-hai, LI Jin-gang. Exploration of radial expansion of the gasification face from underground coal gasification[J]. J China Coal Soc, 2018,43(7):2044-2051.
9. [9]
  XI Jian-fen. Study on the evolution rule of characteristic field in underground coal gasification process[D]. Beijing: China University of Mining & Technology (Beijing), 2016.
10. [10]
  SU F Q, HAMANAKA A, ITAKURA K I, ZHANG W Y, DEGUCHI G, SATO K, TAKAHASHI K, KODAMA J I. Monitoring and evaluation of simulated underground coal gasification in an ex-situ experimental artificial coal seam system[J]. Appl Energy, 2018,223:82-92.
11. [11]
  KAPUSTA K, STANCZYK K. Pollution of water during underground coal gasification of hard coal and lignite[J]. Fuel, 2011,90(5):1927-1934.
12. [12]
  IMRAN M, KUMAR D, KUMAR N, QAYYUM A, SAEED A, BHATTI M S. Environmental concerns of underground coal gasification[J]. Renewable Sustainable Energy Rev, 2014,31:600-610.
13. [13]
  LIU Shu-qin, NIU Mao-fei, QI Kai-li, SONG Xiao-fei, LI Jin-gang, HE Yan, WANG Zhi-hai, GAO Bao-ping. Migration behavior of typical pollutants from underground coal gasification[J]. J China Coal Soc, 2018,43(9):2618-2624.
14. [14]
  ZHANG Le, CHEN Lun-jian, XING Bao-lin, XU Bing, SU Yu, LI Zheng-xin. Removal of phenol from simulated wastewater by underground coal gasification semi-coke[J]. Chem Ind Eng Prog, 2015,34(10):3790-3794.
15. [15]
  XU B, CHEN L J, XING B L, LI Z X, ZHANG L, YI G Y, HUANG G X, MOHANTY M K. Physicochemical properties of Hebi semi-coke from underground coal gasification and its adsorption for phenol[J]. Process Saf Environ Prot, 2017,107:147-152.
16. [16]
  CHEN L J, LI C Q, XU B, XING B L, YI G Y, HUANG G X, ZHANG C X, LIU J W. Microbial degradation of organic pollutants in groundwater related to underground coal gasification[J]. Energy Sci Eng, 2019,7:2098-2111.
17. [17]
  LIANG Xin-xing, LIANG Jie, SHEN Fang. Study on the influence of coal char gasification reaction on underground coal gasification[J]. Sci Technol Innovation Herald, 2012,14:8-9.
18. [18]
  JIN Zhi-wei, TANG Jing-jie, ZHANG Shang-jun, WANG Zhen-zhou, YANG Hai-jing, ZHANG Kang. Gasification characteristics of large size lignite-char[J]. Clean Coal Technol, 2013,19(4):65-69+82.
19. [19]
  ZHAO Juan, CHEN Feng, LIU Hong-tao, WANG Yuan-yuan, YAO Kai. Study on CO₂ gasification reaction features of lump coal in underground gasification process[J]. Coal Technol, 2013,41(12):132-135.
20. [20]
  LIANG Xin-xing, LV Jun-xin, SHU Xin-qian. Impact analysis of anthracite char structure to underground catalytic pyrolysis[J]. Coal Eng, 2018,50(1):121-123+127.
21. [21]
  CHEN Hong-wei, MU Xing-long, LUO Min, WANG Yuan-xin, ZHANG Zhi-yuan. Contrast research on catalytic gasification characteristics of different catalysts on Zhundong coal[J]. Coal Technol, 2016,44(4):153-158.
22. [22]
  MEI Yan-gang, WANG Zhi-qing, GAO Song-ping, ZHENG Hong-yan, ZHANG He, FANG Yi-tian. Research progress of the influence of alkali metals and alkaline earth metals on coal thermal chemical conversion[J]. J Fuel Chem Technol, 2020,48(4):385-394.
23. [23]
  LI Ling-quan, LI Han-xu, MAO Li-rui, DOU Yuan-yuan, HU Xia, ZHENG Jiu-qiang. Catalytic effects and kinetics of carbonates on coal char gasification[J]. Coal Convers, 2019,42(5):54-60.
24. [24]
  LI Xian-yu, GUO Qing-hua, DING Lu, YU Guang-suo. Investigation on catalytic gasification reaction characteristics of coal char with Na₂CO₃[J]. J Fuel Chem Technol, 2016,44(12):1422-1429.
25. [25]
  GAO Mei-qi, WANG Yu-long, LI Fan. Research progress in calcium catalytic action during coal gasification[J]. Chem Ind Eng Prog, 2015,34(3):715-719.
26. [26]
  CHEN Hong-wei, ZHAO Zhen-hu, HAN Liang, LIANG Zhan-wei. Study on gasification of coal char with CO₂ catalysed by CaO[J]. J North China Electric Power Univ, 2012,39(2):93-96, 112.
27. [27]
  LIU Hong-tao, ZHAO Juan, WANG Yuan-yuan, YAO Hong. Experimental study on lignite catalyzed by UCG waste water[J]. Coal Convers, 2015,38(2):28-31.
28. [28]
  LIANG Xin-xing, LIANG Jie, SUN Chun-bao, SHEN Fang. Study on the method of catalysis on underground coal gasification[J]. Coal Convers, 2013,36(1):38-42.
29. [29]
  CHEN Huan-li. The physicochemical properties of semi-coke of UCG and its purification of groundwater pollution[D]. Henan Polytechnic University, 2017.
30. [30]
  GREGG S J, SING K S W. Adsorption Surface Area and Porosity[M]. London:Academic Press, 1991:78-82.
31. [31]
  JIAO Y, ZHAO J H, AN W T, ZHANG L Q, SHA Y J, YANG G M, SHAO Z P, ZHU Z P, LI S D. Structurally modified coal char as a fuel for solid oxide-based carbon fuel cells with improved performance[J]. J Power Sources, 2015,288:106-114.
32. [32]
  ZHANG Xian-lan, CHEN Qing-ru, XU De-ping, SHI Hong-xia. Effect of pore structure and loaded metal catalyst on SO₂ removal property of porous carbon part (Ⅰ):Influence of Calcium catalyst on meso-pore formation of activated carbon[J]. Coal Convers, 2004,27(4):87-90.
33. [33]
  HAN Yan-na, WANG Lei, YU Jiang-long, WANG Dong-mei, YIN Feng-kui. Effect of calcium on pyrolysis of lignite and reactivity of char in steam gasification[J]. J Taiyuan Technol Univ, 2013,40(3):264-267.
34. [34]
  LI Shao-feng, WU Shi-yong. Evolvement behavior of carbon minicrystal and pore structure of coal chars at high temperatures[J]. J Fuel Chem Technol, 2010,38(5):513-517.
35. [35]
  LI Yang, LIU Yang, FENG Wei, ZHAO Bin, ZHI Ke-duan, TENG Ying-yue, SONG Yin-min, HE Run-xia, ZHOU Chen-liang, LIU Quan-sheng. Influence of calcium oxide on Shengli lignite char microstructure and steam gasification performance[J]. J Fuel Chem Technol, 2015,43(9):1038-1043.
36. [36]
  SONIBARE O O, HAEGER T, FOLEY S F. Structural characterization of Nigerian coals by X-ray diffraction, Raman and FT-IR spectroscopy[J]. Energy, 2010,35(12):5347-5353.
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沈阳化工大学材料科学与工程学院沈阳 110142

Effect of limestone on physicochemical properties of the residual chars from simulated underground gasification of lignite

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com