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electrolysis; perfluorocarbons; anode passivation 1 Introduction In the primary aluminum production by the Hall-Héroult process, a departure from normal cell operation known as the anode effect (AE) results in the generation of the perfluorocarbons (PFCs) CF4 and C2F6 [1]. Especially, the anode effect not only produces high potential greenhouse effect gas, PFCs, but also consumes a number......
in the reverse scanning processes, in which fluorine ions were oxidized and perfluorocarbons were produced, which resulted in an anode effect.关键词:......
consumption (0.186 GJ/kg Al), the release of perfluorocarbons, and the high specific CO2 emissions (7.42 kg CO2/kg Al)[5-6]. Therefore, much effort has been spent to achieve the carbothermic reduction......
energy consumption, the release of perfluorocarbons, and the high specific CO2-equiv emissions. The greenhouse gas emission by the electrolytic Al production contributes to 2.5% of the world......
energy consumption by up to 38%, capital costs by more than 60%, and decrease CO2 emissions by up to 30% [3]. Meanwhile, it also reduces overall operating costs by 25%-30%, and has no perfluorocarbons......
. REFERENCES [1] DION L, MARKS J, KISS L I, et al. Quantification of perfluorocarbons emissions during high voltage anode effects using non-linear approach[J]. Journal of Cleaner Production, 2017, 164......