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Erschienen in:
2016 | OriginalPaper | Buchkapitel
A Study of Low Voltage PFC Emissions at Dubal
verfasst von : Abdalla Zarouni, Michel Reverdy, Ali Al Zarouni, K. G. Venkatasubramaniam
Erschienen in: Light Metals 2013
Verlag: Springer International Publishing
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Perfluorocarbon (PFC) emissions are the result of a phenomenon called anode effect (AE), when normal electrolysis is discontinued due to lack of alumina and another reaction takes place leading to generation of PFC gases. Anode effects have been characterized in the industry by measuring their frequency and duration when the cell voltage is above 8 volts. Efforts have been made by the Aluminium Industry to reduce AE frequency and duration leading to considerable reductions in PFC emissions. However, recent independent measurements reported sources of PFC emissions that are “non AE related”. Measurements have been carried out on all DUBAL cell technologies in 2010/2011 and similar occurrences have been observed. DUBAL has initiated a program to identify the possible mechanism of the “non AE related” PFC emissions and to develop new logics for treating it. In this paper, a study of low voltage PFC emissions at DUBAL will be presented.