Abstract
Most aluminum companies have initiated voluntary programs for actively reducing propagating, or above 8 volt, anode effect (AE), perfluorocarbon (PFC) emissions and all modern pre-bake smelters have automated reactive methods for terminating anode effects. The goal of these methods is to reduce cumulative anode effect minutes per cell-day. Any PFCs evolved from aluminum electrolysis pots during periods when pot voltage is below eight volts are considered non-anode effect or low voltage (LV) PFC emissions, consistent with current PFC measurement protocols.
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