Processes for the Removal of Sulphur Dioxide from the Gaseous Emissions from Nonferrous Metallurgy Works. Technologies and Catalysts
S. R. KHAIRULIN1, M. A. KERZHENTSEV1, S. A. YASHNIK1, A. V. SALNIKOV1, T. N. TERYAEVA2, I. V. ILYUKHIN3, R. R. SADYKOV3, and Z. R. ISMAGILOV1,4
1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
2Gorbachev Kuzbass State Technological University, Ul. Vesennyaya 28, Kemerovo 650000 (Russia)
3MMC Norilsk Nickel PJSC, 1-y Krasnogvardeyskiy Proezd 15, Moscow 123100 (Russia)
4Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences, Sovetskiy Pr.18, Kemerovo 650000 (Russia)
Keywords: SO2-катализатор, восстановление, SO2 catalyst, reduction
Abstract
The major technologies used for gas purificationf rom sulphur dioxide are described. On the basis of data analysis, it is concluded that the promising methods of sulphur dioxide neutralization in the gas emitted from metallurgic works involve catalytic reduction of SO2 by methane or synthesis gas. Requirements to reduction catalysts are formulated. Different classes of catalytic systems are described.
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