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Decomposition of limestone in a solar reactor

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  • Imhof, A.

Abstract

The thermal decomposition of limestone has been selected as a model reaction for developing and testing an atmospheric open solar reactor. The reactor consists of a cyclone gas/particle separator which has been modified to let the concentrated solar energy enter through a windowless aperture. The reacting particles are directly exposed to the solar irradiation. Experimentation with a 60 kW reactor prototype was conducted at PSI's 90m2 parabolic solar concentrator, in a continuous mode of operation. A counter-current flow heat exchanger was employed to preheat the reactants. Eighty five percent degree of calcination was obtained for cement raw material and 15% of the solar input was converted into chemical energy (enthalpy).

Suggested Citation

  • Imhof, A., 1997. "Decomposition of limestone in a solar reactor," Renewable Energy, Elsevier, vol. 10(2), pages 239-246.
    • Handle: RePEc:eee:renene:v:10:y:1997:i:2:p:239-246
    DOI: 10.1016/0960-1481(96)00072-9
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    Cited by:

    1. Yadav, Deepak & Banerjee, Rangan, 2016. "A review of solar thermochemical processes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 497-532.
    2. Alvarez Rivero, M. & Rodrigues, D. & Pinheiro, C.I.C. & Cardoso, J.P. & Mendes, L.F., 2022. "Solid–gas reactors driven by concentrated solar energy with potential application to calcium looping: A comparative review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 158(C).

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