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Methanation of synthesis gas in a solar chemical heat pipe

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  • Rubin, R.
  • Levitan, R.
  • Rosin, H.
  • Levy, M.

Abstract

The reversible reaction CH4 + CO2 = 2H2 + 2CO is under investigation as a chemical heat pipe for storage and transport of solar energy. In this paper, the study of the back exothermic reaction, the methanation of CO-rich synthesis gas, is reported. Three different methanators were constructed and operated in a closed-loop, with the reforming products from the reaction carried out in the solar furnace. The best performance was obtained with a six-stage adiabatic methanator. The experimental results are compared with computer calculations, assuming equilibrium at each stage. The agreement between experimental and calculated results is satisfactory. Scale-up work on a 400 kW unit is in progress.

Suggested Citation

  • Rubin, R. & Levitan, R. & Rosin, H. & Levy, M., 1992. "Methanation of synthesis gas in a solar chemical heat pipe," Energy, Elsevier, vol. 17(12), pages 1109-1119.
    • Handle: RePEc:eee:energy:v:17:y:1992:i:12:p:1109-1119
    DOI: 10.1016/0360-5442(92)90001-G
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