Citation: WU Suo-zhen, LUN Fei, TU Ka-bin, WANG Qing-song, CHENG Jian-lin, ZHANG Hong. Form and distribution of sulfur in pulverized Jincheng coal and their influence on its ash fusibility[J]. Journal of Fuel Chemistry and Technology, ;2020, 48(6): 649-654. shu

Form and distribution of sulfur in pulverized Jincheng coal and their influence on its ash fusibility

1.
Jiangsu Fangtian Electric Power Technology Co. LTD, Nanjing 211100, China
2.
China University of Mining and Technology School of Chemical Engineering, Xuzhou 221116, China
3.
Zhoushan Entry-exit Inspection and Quarantine Bureau, Zhoushan 316021, China

Corresponding author: LUN Fei, 799982823@qq.com
Received Date: 30 March 2020
Revised Date: 19 May 2020

Fund Project: Jiangsu Fangtian Electric Power Technology Co., Ltd KJXM-0146the National Natural Science Foundation of China and Shanxi Low Carbon Coal Foundation U1510106The project was supported by the National Natural Science Foundation of China and Shanxi Low Carbon Coal Foundation (U1510106) and Jiangsu Fangtian Electric Power Technology Co., Ltd (KJXM-0146)

Figures(6)

Forms and distribution of sulfur in pulverzied Jincheng coal were analyzed, and their influence on ash fusion temperature (AFT) was studied. With the float-sink method, the whole coal was separated into four density fractions, i.e. < 1.6, 1.6-1.7, 1.7-2.0 and >2.0 g/cm³. The distribution of sulfur content and their forms were analyzed. SO₃ content and AFT of the coal samples ashed at 450, 815, 1000, and 1300℃ were determined. XRF and XRD were used to reveal the mechanism. The results show that sulfur in pulverized Jincheng coal is not evenly distributed in different density fractions, mainly concentrated in >2.0 g/cm³. With increase of the density, content of organic sulfur decreases rapidly, while those of sulphate sulfur and pyrite increase significantly. With increasing ashing temperature, sulfur contents in the whole coal and density fractions decrease. At 450℃, 87% sulfur is vaporized and at 1300℃ almost all sulfur is vaporized. Different density fraction shows different AFT, with >2.0 g/cm³ having the lowest AFT. Besides, AFT of >2.0 g/cm³ increases with rising ashing temperature. Mechanism study shows that the differentiation of AFT in different density fraction can be attributed to their chemical composition. The increase of AFT of >2.0 g/cm³ with ashing temperature is mainly due to sulfur SO₃ content in the ash residual.
- Jincheng coal,
- forms of sulfur,
- density fraction,
- ash fusibility
1. [1]
  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 Technol, 2018,46(1):8-14. doi: 10.3969/j.issn.0253-2409.2018.01.002
2. [2]
  ZHANG H, WU S, YANG Y, CHENG J, LUN F, WANG Q. Mineral distribution in pulverized blended Zhundong coal and its influence on ash deposition propensity in a real modern boiler situation[J]. ACS Omega, 2020,5:4386-4394. doi: 10.1021/acsomega.9b02928
3. [3]
  TANG Li, LI Zhong-gen, LIU Hong-yan, CHEN Ji. Distribution characteristics of sulfur in coal and its correlation with mercury in Guizhou Province[J]. J Jilin Univ (Earth Sci), 2015(S1)45.
4. [4]
  CHEN Wen-min, JIANG Ning. The relationship between coal ash composition and coal ash fusion[J]. Clean coal Technol, 1996,2(2):34-37.
5. [5]
  KLEINHANS U, WIELAND C, FRANDSEN F J, SPLIETHOFF H. Ash formation and deposition in coal and biomass fired combustion systems:Progress and challenges in the field of ash particle sticking and rebound behavior[J]. Prog Energy Combust Sci, 2018,68:65-168. doi: 10.1016/j.pecs.2018.02.001
6. [6]
  ZHANG De-xiang, LONG Yong-hua, GAO Jin-sheng, ZHENG Bing. Relationship between the coal ash fusibility and its chemical composition[J]. East China Univ Sci Technol, 2003,12(6):590-594. doi: 10.3969/j.issn.1006-3080.2003.06.012
7. [7]
  CHENG J, ZHOU J H, LIU J Z, ZHOU Z J. Sulfur removal at high temperature during coal combustion in furnaces:A review[J]. Prog Energy Combust Sci, 2003,29(5):381-405. doi: 10.1016/S0360-1285(03)00030-3
8. [8]
  XIE Jun-lin, XIAO Fei-yan, DI Dong-ren, ZHU Zhan-ling. Effect of high-sulfur coal on mineral formation and petrographic structure of cement clinker[J]. J Wuhan Univ Technol, 2010,32(15):1-4. doi: 10.3963/j.issn.1671-4431.2010.15.001
9. [9]
  ZHANG H, MO Y, SUN M, WEI X. 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
10. [10]
  REINMÖLLER M, SCHREINER M, GUHL S, NEUROTH M. 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
11. [11]
  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]. J Fuel Chem Technol, 2018,46(12):1430-1436. doi: 10.3969/j.issn.0253-2409.2018.12.003
12. [12]
  CHEN Guo-fang. Analysis of coal-forming environment in Jincheng mining area of Qinshui coalfield[J]. North China Land Res, 2016(3):18-19. doi: 10.3969/j.issn.1672-7487.2016.03.009
13. [13]
  LI Wen, BAI Jin. Ash Chemistry of Coal[M]. Beijing:Science Press, 2013.
1. [1]
  Yiming Liang , Ziyan Pan , Kin Shing Chan . One Drink, Two Tears in the Central Nervous System: The Perils of Disulfiram-Like Reactions. University Chemistry, 2025, 40(4): 322-325. doi: 10.12461/PKU.DXHX202406016
2. [2]
  Tao Wang , Qin Dong , Cunpu Li , Zidong Wei . Sulfur Cathode Electrocatalysis in Lithium-Sulfur Batteries: A Comprehensive Understanding. Acta Physico-Chimica Sinica, 2024, 40(2): 2303061-0. doi: 10.3866/PKU.WHXB202303061
3. [3]
  Weihan Zhang , Menglu Wang , Ankang Jia , Wei Deng , Shuxing Bai . Surface Sulfur Species Influence Hydrogenation Performance of Palladium-Sulfur Nanosheets. Acta Physico-Chimica Sinica, 2024, 40(11): 2309043-0. doi: 10.3866/PKU.WHXB202309043
4. [4]
  Yongming Zhu , Huili Hu , Yuanchun Yu , Xudong Li , Peng Gao . Construction and Practice on New Form Stereoscopic Textbook of Electrochemistry for Energy Storage Science and Engineering: Taking Basic Course of Electrochemistry as an Example. University Chemistry, 2024, 39(8): 44-47. doi: 10.3866/PKU.DXHX202312086
5. [5]
  Hongyao Li , Youyan Liu , Luwei Dai , Min Yang , Qihui Wang . The Blessing of Indium Sulfide：Confronting the Narrow Path with Uric Acid. University Chemistry, 2024, 39(5): 325-335. doi: 10.3866/PKU.DXHX202311104
6. [6]
  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
7. [7]
  Pingping Zhu , Yongjun Xie , Yuanping Yi , Yu Huang , Qiang Zhou , Shiyan Xiao , Haiyang Yang , Pingsheng He . Excavation and Extraction of Ideological and Political Elements for the Virtual Simulation Experiments at Molecular Level: Taking the Project “the Simulation and Computation of Conformation, Morphology and Dimensions of Polymer Chains” as an Example. University Chemistry, 2024, 39(2): 83-88. doi: 10.3866/PKU.DXHX202309063
8. [8]
  Huanhuan XIE , Yingnan SONG , Lei LI . Two-dimensional single-layer BiOI nanosheets: Lattice thermal conductivity and phonon transport mechanism. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 702-708. doi: 10.11862/CJIC.20240281
9. [9]
  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
10. [10]
  Ruiqing LIU , Wenxiu LIU , Kun XIE , Yiran LIU , Hui CHENG , Xiaoyu WANG , Chenxu TIAN , Xiujing LIN , Xiaomiao FENG . Three-dimensional porous titanium nitride as a highly efficient sulfur host. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 867-876. doi: 10.11862/CJIC.20230441
11. [11]
  Jinyao Du , Xingchao Zang , Ningning Xu , Yongjun Liu , Weisi Guo . Electrochemical Thiocyanation of 4-Bromoethylbenzene. University Chemistry, 2024, 39(6): 312-317. doi: 10.3866/PKU.DXHX202310039
12. [12]
  Nan Xiao , Fang Sun . 二芳基硫醚化合物的构建及应用. University Chemistry, 2025, 40(6): 360-363. doi: 10.12461/PKU.DXHX202407099
13. [13]
  Haitao Wang , Lianglang Yu , Jizhou Jiang , Arramel , Jing Zou . S-Doping of the N-Sites of g-C₃N₄ to Enhance Photocatalytic H₂ Evolution Activity. Acta Physico-Chimica Sinica, 2024, 40(5): 2305047-0. doi: 10.3866/PKU.WHXB202305047
14. [14]
  Yong Shu , Xing Chen , Sai Duan , Rongzhen Liao . How to Determine the Equilibrium Bond Distance of Homonuclear Diatomic Molecules: A Case Study of H₂. University Chemistry, 2024, 39(7): 386-393. doi: 10.3866/PKU.DXHX202310102
15. [15]
  Meifeng Zhu , Jin Cheng , Kai Huang , Cheng Lian , Shouhong Xu , Honglai Liu . Classical Density Functional Theory for Understanding Electrochemical Interface. University Chemistry, 2025, 40(3): 148-152. doi: 10.12461/PKU.DXHX202405166
16. [16]
  Shu'e Song , Xiaokui Wang , Yongmei Liu , Wanchun Zhu , Hong Yuan , Fuping Tian , Yunshan Bai , Yunchao Li , Li Wang , Zhongyun Wu , Yuan Chun , Jianrong Zhang , Shuyong Zhang . Suggestions on Operating Specifications of Physical Chemistry Experiment: Measurement of Viscosity, Density and Optical Properties. University Chemistry, 2025, 40(5): 148-156. doi: 10.12461/PKU.DXHX202503026
17. [17]
  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
18. [18]
  Yingtong Shi , Guotong Xu , Guizeng Liang , Di Lan , Siyuan Zhang , Yanru Wang , Daohao Li , Guanglei Wu . PEG-VN改性PP隔膜用于高稳定性高效率锂硫电池. Acta Physico-Chimica Sinica, 2025, 41(7): 100082-0. doi: 10.1016/j.actphy.2025.100082
19. [19]
  Xue Xiao , Jiachun Li , Xiangtong Meng , Jieshan Qiu . Sulfur-Doped Carbon-Coated Fe_0.95S_1.05 Nanospheres as Anodes for High-Performance Sodium Storage. Acta Physico-Chimica Sinica, 2024, 40(6): 2307006-0. doi: 10.3866/PKU.WHXB202307006
20. [20]
  Yan'e LIU , Shengli JIA , Yifan JIANG , Qinghua ZHAO , Yi LI , Xinshu CHANG . MoO₃/cellulose derived carbon aerogel: Fabrication and performance as cathode for lithium-sulfur battery. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1565-1573. doi: 10.11862/CJIC.20250054

Get Citation

PDF

XML

Metrics

PDF Downloads(4)
Abstract views(397)
HTML views(71)

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