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Hydrocarbon regulation and lower temperature pyrolysis of balikun oil shale kerogen

Author

Listed:
  • Fei Liu
  • Weiguang Shi
  • Tianbao Liu
  • Wei Li
  • Liang Sun
  • Xiangbin Liu
  • Changming Zhao
  • Benxian Li
  • Sunhua Deng
  • Zhaohui Dong
  • Chengwu Xu
  • Xiaofei Fu
  • Xiuling Yan

Abstract

Oil shale kerogen is a kind of composite nature of fossil energy polymer. Kerogen pyrolysis is a feasible and alternative strategy to produce fossil fuels from shales. However, the disadvantages including the high energy consumption, the high cost, and the low hydrocarbon conversion, significantly hinder the development and utilization of unconventional hydrocarbon resources. Herein, the hexagonal crystal structural layered double hydroxides (LDHs) with the Ni/Fe ratio of 5.64:2.36 is proposed as pyrolysis catalyst to improve the catalytic efficiency, the selectivity of target hydrocarbons, and lower the temperature for the process of kerogen pyrolysis. As a result, needle-like nanoscale NiFe-LDHs are prepared successfully to perform the fast thermal upgrading of Balikun oil shale kerogen. The catalytic pyrolysis performance has been observed that the temperature for maximum conversion (Tmax) is 401.18 °C, presenting a Tmax reduction of 37.84 °C, the yield of shale oil is increased by 7.83 wt%. And during 350°C– 400°C, a progressive increment of 147.67%, 230.86%, and 310.61% is obtained corresponding to the content of C 1 -C 5 , C 6 -C 14 , and C 14   +  hydrocarbons, respectively. This finding enriches the catalyst candidates for kerogen pyrolysis and provides new insights into industrial applications of in-situ pyrolysis technology for oil shale recovery processes.

Suggested Citation

  • Fei Liu & Weiguang Shi & Tianbao Liu & Wei Li & Liang Sun & Xiangbin Liu & Changming Zhao & Benxian Li & Sunhua Deng & Zhaohui Dong & Chengwu Xu & Xiaofei Fu & Xiuling Yan, 2024. "Hydrocarbon regulation and lower temperature pyrolysis of balikun oil shale kerogen," Energy & Environment, , vol. 35(2), pages 597-609, March.
    • Handle: RePEc:sae:engenv:v:35:y:2024:i:2:p:597-609
    DOI: 10.1177/0958305X221133263
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    1. Kang, Zhiqin & Zhao, Yangsheng & Yang, Dong, 2020. "Review of oil shale in-situ conversion technology," Applied Energy, Elsevier, vol. 269(C).
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