Solar thermal production of zinc: program strategy and status of research

A. Weidenkaff; M. Brack; S. Möller; R. Palumbo; A. Steinfeld

doi:10.1051/jp4:1999348

Solar thermal production of zinc: program strategy and status of research

A. Weidenkaff, M. Brack, S. Möller, R. Palumbo, A. Steinfeld

Mechanical & Industrial Engineering

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Abstract

The solar thermal production of zinc is considered for the conversion of solar energy into storable and transportable chemical fuels. The ultimate objective is to develop a technically and economically viable technology that can produce solar zinc. The program strategy for achieving such goal involves research in two paths: a direct path via the solar thermal splitting of ZnO, and an indirect path via the solar carbothermal and CH₄-thermal reduction of ZnO. The chemical thermodynamics and kinetics for both paths are briefly reviewed. A vortex-flow solar reactor for reducing ZnO with CH₄ is also described. Solar tests conducted at PSI solar furnaces in the temperature range 1000-1600 K yielded high chemical conversion to zinc.

Original language	English (US)
Pages (from-to)	Pr3-313 - Pr3-318
Journal	Journal De Physique. IV : JP
Volume	9
Issue number	3
DOIs	https://doi.org/10.1051/jp4:1999348
State	Published - Jan 1 1999
Event	Proceedings of the 1998 9th SolarPaces International Symposium on Solar Thermal Concentrating Technologies,STCT 9 - Font-Romeu Duration: Jun 22 1998 → Jun 26 1998

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AU - Weidenkaff, A.

AU - Brack, M.

AU - Möller, S.

AU - Palumbo, R.

AU - Steinfeld, A.

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AB - The solar thermal production of zinc is considered for the conversion of solar energy into storable and transportable chemical fuels. The ultimate objective is to develop a technically and economically viable technology that can produce solar zinc. The program strategy for achieving such goal involves research in two paths: a direct path via the solar thermal splitting of ZnO, and an indirect path via the solar carbothermal and CH4-thermal reduction of ZnO. The chemical thermodynamics and kinetics for both paths are briefly reviewed. A vortex-flow solar reactor for reducing ZnO with CH4 is also described. Solar tests conducted at PSI solar furnaces in the temperature range 1000-1600 K yielded high chemical conversion to zinc.

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Solar thermal production of zinc: program strategy and status of research

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