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Oil-shale gasification by concentrated sunlight: An open-loop solar chemical heat pipe

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  • Ingel, Gil
  • Levy, Moshe
  • Gordon, J.M.

Abstract

Gasification of oil shales followed by catalytic reforming can yield synthesis gas, which is easily transportable and may also be used for producing liquid fuels. We report here on experiments performed at the Weizmann Institute's Solar Central Receiver involving the use of concentrated solar energy as the heat source for the gasification. A number of dual-axis tracking heliostat mirrors provided primary concentration, and compound parabolic concentrators (CPCs) were used for secondary concentration. In addition to being the first experimental study on this particular type of chemical storage of concentrated sunlight, new aspects of this work include demonstrations of the following: 1.(i)significantly higher synthesis gas yields than previously reported;2.(ii) marked improvements in conversion efficiency in transparent reactors, as opposed to opaque reactors, both as fluidized beds, primarily due to better heat transfer;3.(iii) a substantial increase in deliverable energy compared to the conventional retorting of oil shales, and considerable reduction in the resulting spent shale.

Suggested Citation

  • Ingel, Gil & Levy, Moshe & Gordon, J.M., 1992. "Oil-shale gasification by concentrated sunlight: An open-loop solar chemical heat pipe," Energy, Elsevier, vol. 17(12), pages 1189-1197.
    • Handle: RePEc:eee:energy:v:17:y:1992:i:12:p:1189-1197
    DOI: 10.1016/0360-5442(92)90008-N
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    Cited by:

    1. Koepf, E. & Alxneit, I. & Wieckert, C. & Meier, A., 2017. "A review of high temperature solar driven reactor technology: 25years of experience in research and development at the Paul Scherrer Institute," Applied Energy, Elsevier, vol. 188(C), pages 620-651.
    2. Jaber, J. O. & Probert, S. D. & Williams, P. T., 1998. "Modelling oil-shale integrated tri-generator behaviour: predicted performance and financial assessment," Applied Energy, Elsevier, vol. 59(2-3), pages 73-95, February.
    3. Zedtwitz, P.v. & Steinfeld, A., 2003. "The solar thermal gasification of coal — energy conversion efficiency and CO2 mitigation potential," Energy, Elsevier, vol. 28(5), pages 441-456.

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