GTC of electrolytic aluminum uses alumina as production raw material to adsorb fluoride in flue gas.This paper analyzes the development process of GTC,the calculation shows that the saturation adsorption peak of fluorine-containing alumina after defluorination adsorption in aluminum elec-trolysis flue gas is relatively large compared to oxidation,based on theoretical analysis,it can be concluded that the way to improve the adsorption efficien-cy of GTC can be achieved by prolonging the contact time between alumina and gaseous fluoride and increasing the concentration difference between alumi-na and gaseous fluoride.Finally,based on the basic principle of permeation theory in mass transfer theory,a highly-efficient adsorption purification technology for aluminum electrolysis flue gas is proposed.
关键词
电解铝/电解烟气/脱氟净化/相间传质/含氟氧化铝/净化效率
Key words
electrolytic aluminum/electrolytic aluminum flue gas/GTC of electrolytic aluminum/interphase mass transfer/fluorine-containing alumina/scrubbing efficiency
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