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LCA Comparison of the ELKEM Solar metallurgical route and conventional gas routes to solar silicon
Wild - Scholten, M.J. de; Glockner, R.; Odden, J-O.; Halvorsen, G.; Tronstad, R.
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 4-2-2008
ECN publicatienummer: Publicatie type:
ECN-M--08-012 Conferentiebijdrage
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5 Download PDF  (235kB)

Gepresenteerd op: 23rd European Photovoltaic Solar Energy Conference and Exhibition, Valencia, Spain, 1-5 september 2008.

Preliminary Environmental Life Cycle Assessment of solar grade silicon production via gas- and metallurgical route indicates that environmental impacts can be reduced by: • making efficient use of the metallurgical silicon, • installing waste heat recovery systems, • using a clean source of electricity. The metallurgical route has the advantage of a lower energy consumption compared to the traditional routes with purification via the gas phase resulting in lower environmental impacts.

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