Citation: ZHANG Bo, ZHANG Hong, YANG Yun-fei, HU Guang-zhou, ZHANG Peng-qi, LUN Fei. Study on the influence of particle size on the ash melting behavior of Jincheng coal[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(12): 1430-1436. shu

Study on the influence of particle size on the ash melting behavior of Jincheng coal

1.
Qinhuangdao Entry-Exit Inspection and Inspection Bureau Coal Detection Technology Center, Qinhuangdao 066003, China
2.
School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China

Corresponding author: ZHANG Hong, hzhang@cumt.edu.cn
Received Date: 6 August 2018
Revised Date: 28 September 2018

Fund Project: The project was supported by the National Natural Science Foundation of China and Shanxi Low Carbon Coal Foundation(U1510106)the National Natural Science Foundation of China and Shanxi Low Carbon Coal Foundation U1510106

Figures(9)

The slagging mechanism of the Jincheng coal in the ash-agglomerate fluidized bed gasification was explored. A typical Jincheng coal sampled from Shanxi, China was prepared into different particle size and the XRF, XRD, AFT, SEM and FactSage^TM were employed to study the influence of particle size on the ash content, chemical and mineral composition and ash fusibility. The results indicate that the ash chemical composition and AFTs vary little with size below 6 mm. For the pulverized samples below 0.2 mm, there are apparent differences in the chemical composition and mineral composition, especially in Fe₂O₃. Both AFT results and SEM observations show that the sample with particle size less than 45 μm has a significantly higher melting temperature than the other three samples. The slag contents calculated with FactSage^TM are consistent with the AFT results and SEM observations, which indicates that the change of ash melting behavior with particle size results from the change in chemical composition. The ternary phase diagram of SiO₂-Al₂O₃-Fe₂O₃ can be used successfully to explain the mechanism of the change of ash melting behavior with particle size for Jincheng coal.
- Jincheng coal,
- ash-agglomerate fluidized bed,
- ash fusion temperature,
- slagging
1. [1]
  CHEN Peng. Nature, Classification and Utilization of Coal in China[M]. Beijing:Chemical Industry Press, 2007.
2. [2]
  FANG Yi-tian, WANG Yang, MA Xiao-yun, HUANG Jie-jie, WU Jin-hu, CHENG Zhong-hu, CHEN Han-shi. New progress in research and development of pressurized large-scale coal gasification technology for ash fusion fluidized bed coal gasification technology[J]. Coal Chem, 2007,35(1):11-15. doi: 10.3969/j.issn.1005-9598.2007.01.003
3. [3]
  LI Feng-hai, HUANG Jie-jie, FANG Yi-tian, WANG Yang. Exploration on slagging mechanism of Jincheng anthracite during fluidized-bed gasification[J]. J Taiyuan Univ Technol, 2010,41(5):666-669.
4. [4]
  NARUSE I, KAMIHASHIRA D, KHAINIL , MIYAUCHI Y, KATO Y, YAMASHITA Y, TOMINAGA H. Fundamental ash deposition characteristics in pulverized coal reaction under high temperature conditions[J]. Fuel, 2005,84(4):405-410. doi: 10.1016/j.fuel.2004.09.007
5. [5]
  WU X, ZHANG Z, PIAO G, HEX , CHEN Y, KOBAYASHI N, MORI S, ITAYA Y. Behavior of mineral matters in chinese coal ash melting during char-CO₂/H₂O gasification reaction[J]. Energy Fuels, 2009,23(5):2420-2428. doi: 10.1021/ef801002n
6. [6]
  MATJIE RH, LI Z, WARD C R, FRENCH D. Chemical composition of glass and crystalline phases in coarse coal gasification ash[J]. Fuel, 2008,87(6):857-869. doi: 10.1016/j.fuel.2007.05.050
7. [7]
  WALL T F, CREELMAN R A, GUPTA R P, GUPTA S K, COIN C, LOWE A. Coal ash fusion temperatures-New characterization techniques, and implications for slagging and fouling[J]. Prog Energy Combust Sci, 1998,24(4):345-353. doi: 10.1016/S0360-1285(98)00010-0
8. [8]
  BARTELS M, LIN W, NIJENHUIS J. Agglomeration in fluidized beds at high temperatures:Mechanisms, detection and prevention[J]. Prog Energy Combust Sci, 2008,34(5):633-666. doi: 10.1016/j.pecs.2008.04.002
9. [9]
  ZHANG Hong, HU Guang-zhou, FANG Jia-xin, PU Wen-xiu, MO Yan-xue, HA Si, LI Ying. Study on the distribution of minerals in pulverized coals[J]. J Eng Therm, 2008,29(7):1231-1235. doi: 10.3321/j.issn:0253-231X.2008.07.041
10. [10]
  ZHANG H, MO Y, SUN M. Determination of the mineral distribution in pulverized coal using densitometry and laser particle sizing[J]. Energy Fuels, 2005,19(6):2261-2267. doi: 10.1021/ef050201u
11. [11]
  ZHANG Peng-qi, YANG Qi-qi, TU Ka-bin, WANG Yue-lun, WANG Zu-wei, LIU Lin-lin. Study on the uneven melting law of coal ash in Jincheng[J]. J Fuel Chem T echnol, 2018,46(1):8-14. doi: 10.3969/j.issn.0253-2409.2018.01.002
12. [12]
  BI Ke-jun. Discussion on improvement scheme of gas washing water treatment in ash fusion fluidized bed coal gasification unit[J]. Chem Fert Des, 2011,49(2):26-28. doi: 10.3969/j.issn.1004-8901.2011.02.005
13. [13]
  REINMÖLLER M, SCHREINER M, GUHL S, NEUROTH M, MEYER B. Formation and transformation of mineral phases in various fuels studied by different ashing methods[J]. Fuel, 2017,202:641-649. doi: 10.1016/j.fuel.2017.04.115
14. [14]
  CHAKRAVARTY S, MOHANTY A, BANERJEE A, TRIPATHY R, MANDAL G K, BASARIYA M R, SHARMA M. Composition, mineral matter characteristics and ash fusion behavior of some Indian coals[J]. Fuel, 2015,150:96-101. doi: 10.1016/j.fuel.2015.02.015
15. [15]
  REINMÖLLER M, KLINGER M, SCHREINER M. Relationship between ash fusion temperatures of ashes from hard coal, brown coal, and biomass and mineral phases under different atmospheres:A combined FactSage^TM computational and network theoretical approach[J]. Fuel, 2015,151:118-123. doi: 10.1016/j.fuel.2015.01.036
16. [16]
  LI F, LI Z, HUANG J, FANG Y. Understanding mineral behaviors during anthracite fluidized-bed gasification based on slag characteristics[J]. Appl Energy, 2014,131:279-287. doi: 10.1016/j.apenergy.2014.06.051
17. [17]
  ZHAO Bin, WANG Qing-gong, MO Qiang, QU Ting-ting, LU Jun-fu, YUE Guang-xi. Study on classification of coal particles in fluidized bed[J]. J China Univ Min Technol, 2014,43(4):678-683.
1. [1]
  Mengyao Shi , Kangle Su , Qingming Lu , Bin Zhang , Xiaowen Xu . Determination of Potassium Content in Tobacco Stem Ash by Flame Atomic Absorption Spectroscopy. University Chemistry, 2024, 39(10): 255-260. doi: 10.12461/PKU.DXHX202404105
2. [2]
  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
3. [3]
  Jiaxin Su , Jiaqi Zhang , Shuming Chai , Yankun Wang , Sibo Wang , Yuanxing Fang . Optimizing Poly(heptazine imide) Photoanodes Using Binary Molten Salt Synthesis for Water Oxidation Reaction. Acta Physico-Chimica Sinica, 2024, 40(12): 2408012-0. doi: 10.3866/PKU.WHXB202408012
4. [4]
  Weikang Wang , Yadong Wu , Jianjun Zhang , Kai Meng , Jinhe Li , Lele Wang , Qinqin Liu . Green H₂O₂ synthesis via melamine-foam supported S-scheme Cd_0.5Zn_0.5In₂S₄/S-doped carbon nitride heterojunction: synergistic interfacial charge transfer and local photothermal effect. Acta Physico-Chimica Sinica, 2025, 41(8): 100093-0. doi: 10.1016/j.actphy.2025.100093
5. [5]
  Wanchun Zhu , Yongmei Liu , Li Wang , Yunshan Bai , Shu'e Song , Xiaokui Wang , Zhongyun Wu , Hong Yuan , Yunchao Li , Fuping Tian , Yuan Chun , Jianrong Zhang , Shuyong Zhang . Suggestions on Operating Specifications of Physical Chemistry Experiment: Measurement and Control of Temperature. University Chemistry, 2025, 40(5): 128-136. doi: 10.12461/PKU.DXHX202503028
6. [6]
  Yuqiong Li , Bing Lan , Bin Guan , Chunlong Dai , Fan Zhang , Zifeng Lin . Molten Salt Derived Mo₂CT_x MXene with Excellent Catalytic Performance for Hydrogen Evolution Reaction. Acta Physico-Chimica Sinica, 2024, 40(9): 2306031-0. doi: 10.3866/PKU.WHXB202306031
7. [7]
  Qiaoqiao BAI , Anqi ZHOU , Xiaowei LI , Tang LIU , Song LIU . Construction of pressure-temperature dual-functional flexible sensors and applications in biomedicine. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2259-2274. doi: 10.11862/CJIC.20240128
8. [8]
  Mingxin LU , Liyang ZHOU , Xiaoyu XU , Xiaoying FENG , Hui WANG , Bin YAN , Jie XU , Chao CHEN , Hui MEI , Feng GAO . Preparation of La-doped lead-based piezoelectric ceramics with both high electrical strain and Curie temperature. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 329-338. doi: 10.11862/CJIC.20240206
9. [9]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . Molten Intermediate Transportation-Oriented Synthesis of Amino-Rich g-C₃N₄ Nanosheets for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-0. doi: 10.3866/PKU.WHXB202406021
10. [10]
  Jingwen Wang , Minghao Wu , Xing Zuo , Yaofeng Yuan , Yahao Wang , Xiaoshun Zhou , Jianfeng Yan . Advances in the Application of Electrochemical Regulation in Investigating the Electron Transport Properties of Single-Molecule Junctions. University Chemistry, 2025, 40(3): 291-301. doi: 10.12461/PKU.DXHX202406023
11. [11]
  Junqing WEN , Ruoqi WANG , Jianmin ZHANG . Regulation of photocatalytic hydrogen production performance in GaN/ZnO heterojunction through doping with Li and Au. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 923-938. doi: 10.11862/CJIC.20240243
12. [12]
  Haodong JIN , Qingqing LIU , Chaoyang SHI , Danyang WEI , Jie YU , Xuhui XU , Mingli XU . NiCu/ZnO heterostructure photothermal electrocatalyst for efficient hydrogen evolution reaction. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1068-1082. doi: 10.11862/CJIC.20250048
13. [13]
  Yifan ZHAO , Qiyun MAO , Meijing GUO , Guoying ZHANG , Tongliang HU . Z-scheme bismuth-based multi-site heterojunction: Synthesis and hydrogen production from photocatalytic hydrogen production. Chinese Journal of Inorganic Chemistry, 2025, 41(7): 1318-1330. doi: 10.11862/CJIC.20250001
14. [14]
  Haiyu Zhu , Zhuoqun Wen , Wen Xiong , Xingzhan Wei , Zhi Wang . 二维半金属/硅异质结中肖特基势垒高度的准确高效预测. Acta Physico-Chimica Sinica, 2025, 41(7): 100078-0. doi: 10.1016/j.actphy.2025.100078
15. [15]
  Juntao Yan , Liang Wei . 2D S-Scheme Heterojunction Photocatalyst. Acta Physico-Chimica Sinica, 2024, 40(10): 2312024-0. doi: 10.3866/PKU.WHXB202312024
16. [16]
  Jianyin He , Liuyun Chen , Xinling Xie , Zuzeng Qin , Hongbing Ji , Tongming Su . Construction of ZnCoP/CdLa₂S₄ Schottky Heterojunctions for Enhancing Photocatalytic Hydrogen Evolution. Acta Physico-Chimica Sinica, 2024, 40(11): 2404030-0. doi: 10.3866/PKU.WHXB202404030
17. [17]
  Xinming Nie , Xinhe Wu . Schottky/S-scheme composite heterojunctions for efficient CO₂ photoreduction. Acta Physico-Chimica Sinica, 2026, 42(3): 100192-0. doi: 10.1016/j.actphy.2025.100192
18. [18]
  Yukai SHEN , Zhaochao YAN , Yangjun ZHOU , Mei HUANG . Nickel foam-supported NiFeP/NiFcDCA heterojunction electrocatalyst for efficient urea oxidation reaction. Chinese Journal of Inorganic Chemistry, 2026, 42(2): 237-246. doi: 10.11862/CJIC.20250257
19. [19]
  Qiang Zhou , Yu Huang , Jiahe Li , Wei Shao , Wanqun Hu , Pingping Zhu . Design and Practice of Ideological and Political Cases in the Course of Polymer Physics Experiments: Taking “3D Printing Based on Fused Deposition Modeling/Photocuring Molding” as an Example. University Chemistry, 2026, 41(2): 393-399. doi: 10.12461/PKU.DXHX202502104
20. [20]
  Qiang ZHAO , Zhinan GUO , Shuying LI , Junli WANG , Zuopeng LI , Zhifang JIA , Kewei WANG , Yong GUO . Cu₂O/Bi₂MoO₆ Z-type heterojunction: Construction and photocatalytic degradation properties. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 885-894. doi: 10.11862/CJIC.20230435

Get Citation

PDF

XML

Metrics

PDF Downloads(13)
Abstract views(1255)
HTML views(255)

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