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Effects of microwave-assisted pyrolysis on the microstructure of bituminous coals

Author

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  • Li, He
  • Shi, Shiliang
  • Lin, Baiquan
  • Lu, Jiexin
  • Ye, Qing
  • Lu, Yi
  • Wang, Zheng
  • Hong, Yidu
  • Zhu, Xiangnan

Abstract

Microwave-assisted pyrolysis (MWAP) provides distinctive heating for the conversion of coal into liquid fuels. This work investigated the effects of MWAP on the microstructure of bituminous coals by using Fourier transform infrared spectroscopy (FTIR), mercury intrusion porosimetry (MIP) and Scanning Electron Microscope (SEM) techniques. FTIR results showed that MWAP can lead to the decomposition of oxygen functional groups and aliphatic hydrocarbons. Removal of these hydrophilic groups significantly weakens the hydrophilicity of coal. With continuous exposure to microwaves, unstable components such as alcohol, phenol and carboxylic acid are converted into ether groups. Cyclization and aromatization induced by microwave heating improve the maturation of coal. MIP and SEM results indicated that the jet force exerted by the high-pressure steam and gaseous products under MWAP gives a great boost to the opening, enlargement and connection of pores. Furthermore, the thermal stresses induced by microwave selective heating enlarge the fractures and create new cracks, providing seepage space for fluids. MWAP of bituminous coals can not only release moisture and volatiles but also create seepage space by modifying the pore and fracture structure.

Suggested Citation

  • Li, He & Shi, Shiliang & Lin, Baiquan & Lu, Jiexin & Ye, Qing & Lu, Yi & Wang, Zheng & Hong, Yidu & Zhu, Xiangnan, 2019. "Effects of microwave-assisted pyrolysis on the microstructure of bituminous coals," Energy, Elsevier, vol. 187(C).
    • Handle: RePEc:eee:energy:v:187:y:2019:i:c:s0360544219316809
    DOI: 10.1016/j.energy.2019.115986
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    References listed on IDEAS

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    1. Wang, Wenlong & Zhao, Chao & Sun, Jing & Wang, Xiaolin & Zhao, Xiqiang & Mao, Yanpeng & Li, Xinning & Song, Zhanlong, 2015. "Quantitative measurement of energy utilization efficiency and study of influence factors in typical microwave heating process," Energy, Elsevier, vol. 87(C), pages 678-685.
    2. Bera, Achinta & Babadagli, Tayfun, 2015. "Status of electromagnetic heating for enhanced heavy oil/bitumen recovery and future prospects: A review," Applied Energy, Elsevier, vol. 151(C), pages 206-226.
    3. Wang, Jie & Li, Yongmei, 2016. "Synergistic pretreatment of waste activated sludge using CaO2 in combination with microwave irradiation to enhance methane production during anaerobic digestion," Applied Energy, Elsevier, vol. 183(C), pages 1123-1132.
    4. Duan, Wenjun & Yu, Qingbo & Xie, Huaqing & Qin, Qin, 2017. "Pyrolysis of coal by solid heat carrier-experimental study and kinetic modeling," Energy, Elsevier, vol. 135(C), pages 317-326.
    5. Huang, Yu-Fong & Shih, Chun-Hao & Chiueh, Pei-Te & Lo, Shang-Lien, 2015. "Microwave co-pyrolysis of sewage sludge and rice straw," Energy, Elsevier, vol. 87(C), pages 638-644.
    6. Abdulrahman, Muhammed Moshin & Meribout, Mahmoud, 2014. "Antenna array design for enhanced oil recovery under oil reservoir constraints with experimental validation," Energy, Elsevier, vol. 66(C), pages 868-880.
    7. Huang, Yu-Fong & Sung, Hsuan-Te & Chiueh, Pei-Te & Lo, Shang-Lien, 2016. "Co-torrefaction of sewage sludge and leucaena by using microwave heating," Energy, Elsevier, vol. 116(P1), pages 1-7.
    8. Li, Y. & Chen, M.Q. & Li, Q.H. & Huang, Y.W., 2018. "Effect of microwave pretreatment on the combustion behavior of lignite/solid waste briquettes," Energy, Elsevier, vol. 149(C), pages 730-740.
    9. Mushtaq, Faisal & Mat, Ramli & Ani, Farid Nasir, 2014. "A review on microwave assisted pyrolysis of coal and biomass for fuel production," Renewable and Sustainable Energy Reviews, Elsevier, vol. 39(C), pages 555-574.
    10. Martinez-Guerra, Edith & Gude, Veera Gnaneswar & Mondala, Andro & Holmes, William & Hernandez, Rafael, 2014. "Microwave and ultrasound enhanced extractive-transesterification of algal lipids," Applied Energy, Elsevier, vol. 129(C), pages 354-363.
    Full references (including those not matched with items on IDEAS)

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