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Chemistry for Sustainable Development

2015 year, number 4

Calculation of Thermodynamic Constants of Sulphur Dioxide Reduction with Varied Nature of Reducing Agent, Process Temperature, Reagents Ratio

M. A. KERZHENTSEV1, S. R. KHAIRULIN1, S. A. YASHNIK1, A. V. SALNIKOV1, and Z. R. ISMAGILOV1,2
1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
2Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences, Sovetskiy Pr.18, Kemerovo 650000 (Russia)
Keywords: диоксид серы, восстановление, термодинамика, sulphur dioxide, reduction, thermodynamics

Abstract

Results of the thermodynamic analysis of industrially significant low-temperature reduction of sulphur dioxide by different reducing agents (hydrogen, carbon monoxide, synthesis gas) are reported for variations of reducing agents, temperature and the ratio of СО/Н2. The compositions of equilibrium mixtures and the dynamics of their changes depending on process temperature are presented.