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Coal-gasification kinetics derived from pyrolysis in a fluidized-bed reactor

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  • Lee, Jong Min
  • Kim, Yong Jeon
  • Lee, Woon Jae
  • Kim, Sang Done

Abstract

Coal pyrolysis and gasification reactions were carried out in a fluidized-bed reactor (0.1m i.d. by 1.6m height) over a temperature range from 1023 to 1173K at atmospheric pressure. The overall gasification kinetics for the steam–char and oxygen–char reactions were determined in a thermobalance reactor. The compositions of the product gases from the coal-gasification reactions are 30–40% H2, 23–28% CO, 27–35% CO2 and 6–9% CH4 with heating values of 2000–3750kJm−3. The heating value increases with increasing temperature and steam/coal ratio but decreases with increasing air/coal ratio. Our kinetic data derived from the two-phase theory on coal gasification in a thermobalance reactor and coal pyrolysis in a fluidized bed may be used to predict the product-gas compositions.

Suggested Citation

  • Lee, Jong Min & Kim, Yong Jeon & Lee, Woon Jae & Kim, Sang Done, 1998. "Coal-gasification kinetics derived from pyrolysis in a fluidized-bed reactor," Energy, Elsevier, vol. 23(6), pages 475-488.
    • Handle: RePEc:eee:energy:v:23:y:1998:i:6:p:475-488
    DOI: 10.1016/S0360-5442(98)00011-5
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    Cited by:

    1. Xiang, Dong & Jin, Tong & Lei, Xinru & Liu, Shuai & Jiang, Yong & Dong, Zhongbing & Tao, Quanbao & Cao, Yan, 2018. "The high efficient synthesis of natural gas from a joint-feedstock of coke-oven gas and pulverized coke via a chemical looping combustion scheme," Applied Energy, Elsevier, vol. 212(C), pages 944-954.
    2. Ajaree Suwatthikul & Siripong Limprachaya & Paisan Kittisupakorn & Iqbal Mohammed Mujtaba, 2017. "Simulation of Steam Gasification in a Fluidized Bed Reactor with Energy Self-Sufficient Condition," Energies, MDPI, vol. 10(3), pages 1-15, March.
    3. Folgueras, M. Belén & Díaz, R. María & Xiberta, Jorge, 2005. "Pyrolysis of blends of different types of sewage sludge with one bituminous coal," Energy, Elsevier, vol. 30(7), pages 1079-1091.
    4. Sharmina Begum & Mohammad G. Rasul & Delwar Akbar & David Cork, 2013. "An Experimental and Numerical Investigation of Fluidized Bed Gasification of Solid Waste," Energies, MDPI, vol. 7(1), pages 1-19, December.
    5. Fan, Junming & Zhu, Lin & Hong, Hui & Jiang, Qiongqiong & Jin, Hongguang, 2017. "A thermodynamic and environmental performance of in-situ gasification of chemical looping combustion for power generation using ilmenite with different coals and comparison with other coal-driven powe," Energy, Elsevier, vol. 119(C), pages 1171-1180.
    6. Chen, Yi-Feng & Su, Sheng & Zhang, Liang-Ping & Jiang, Long & Qing, Meng-Xia & Chi, Huan-Ying & Ling, Peng & Han, Heng-Da & Xu, Kai & Wang, Yi & Hu, Song & Xiang, Jun, 2021. "Insights into evolution mechanism of PAHs in coal thermal conversion: A combined experimental and DFT study," Energy, Elsevier, vol. 222(C).
    7. Chen, Xiaohui & Zheng, Danxing & Guo, Jing & Liu, Jingxiao & Ji, Peijun, 2013. "Energy analysis for low-rank coal based process system to co-produce semicoke, syngas and light oil," Energy, Elsevier, vol. 52(C), pages 279-288.
    8. Emami Taba, Leila & Irfan, Muhammad Faisal & Wan Daud, Wan Ashri Mohd & Chakrabarti, Mohammed Harun, 2012. "The effect of temperature on various parameters in coal, biomass and CO-gasification: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(8), pages 5584-5596.
    9. Li, Sheng & Jin, Hongguang & Gao, Lin, 2013. "Cogeneration of substitute natural gas and power from coal by moderate recycle of the chemical unconverted gas," Energy, Elsevier, vol. 55(C), pages 658-667.
    10. Ohlemüller, Peter & Alobaid, Falah & Gunnarsson, Adrian & Ströhle, Jochen & Epple, Bernd, 2015. "Development of a process model for coal chemical looping combustion and validation against 100kWth tests," Applied Energy, Elsevier, vol. 157(C), pages 433-448.
    11. Yu, Yong Ho & Kim, Sang Done & Lee, Jong Min & Lee, Keun Hoo, 2002. "Kinetic studies of dehydration, pyrolysis and combustion of paper sludge," Energy, Elsevier, vol. 27(5), pages 457-469.

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