Abstract

The Soderberg aluminum reduction technology is associated with high pollutant emissions including gaseous and poorly soluble fluorides. Currently, conventional VSS cells equipped with a standard gas skirt and a burner do not meet the modern hooding efficiency requirements. The existing technology must be upgraded in order to comply with environmental regulations. The environmentally friendly Soderberg technology implemented with an upgraded gas skirt and a fundamentally new 4-dome gas removal system ensures daily average hooding efficiency of 97,4 %.

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