Journals →  Tsvetnye Metally →  2013 →  #11 →  Back

ArticleName Analysis of efficiency of catalytic conversion of reduced sulfur dioxide gas
ArticleAuthor Vasilev Yu. V., Zotikov O. V., Platonov O. I., Tsemekhman L. Sh.

“Institute “Gipronikel” LLC, Saint Petersburg, Russia:

O. I. Platonov, Leading Researcher, e-mail:
L. Sh. Tsemekhman, Head of Laboratory of Pyrometallurgy

Yu. V. Vasilev, Leading Researcher

Polar Division of “Institute “Gipronikel” LLC, Norilsk, Russia:

O. V. Zotikov, Executive Officer


Estimation of efficiency of combination of various catalytic processes, running in a single reactor with combined charging of different-type catalysts, required the analysis of changes of the catalytic layer activity in Claus Reactor. During the exploitation period since February 2008 till April 2009, this analysis was carried out on the elemental sulfur production area at the Copper Plant of Polar Division of “Norilsk Nickel” MMC. Comparative analysis of the data of various periods' researches have shown that actual conversion efficiency of sulfur-containing gases with combined charging of catalytic reactor (using the Co – Mo/Al2O3 catalyst of SO2 reduction, manufactured by Samara Catalysts Plant) is not higher than the conversion efficiency of ordinary Claus Process commercial-type alumina catalyst (AOK-98-59) with a disastrous loss of reliability because of low heat resistance of catalyst. At the same time, comparison of average empiric values of hydrogen and carbon monoxide conversion at various methods of catalytic reactor charging demonstrate no advantages of combined charging, using the Co – Mo/Al2O3 catalyst in activity of reduction components (H2 and CO). Nonmonotonic nature of aging of the basic layer of AOK-78-59 catalyst was revealed at maximum efficiency of the total conversion of sulfur-containing components (ηs), observed in 2 months after the start of the catalyst exploitation. There was found the absolute maximum value of the reduced gas conversion within the period of 2008–2009:   ηs = (68.5±13.4)% (rel.). Occurrence of significant negative conversion (generation) of carbonyl sulphide immediately after the oxygen poisonings of the catalyst corresponds to the mechanism of two-stage catalytic conversion of carbon disulphide, accompanied by carbonyl sulphide formation at the first stage. Assessment of absolute value of carbonyl sulphide generation makes it possible to obtain the carbon disulphide content in the reduced gas, comparable to the [COS] concentration, i. e.: [CS2] ~ 2% (vol.).

keywords Reduced sulfur dioxide gas, conversion, Claus reactor, carbonylsulphide, aging of catalyst, combined charging, catalytic layer

1. Eremin O. G., Eremina G. A. Tsvetnye Metally — Non-ferrous metals. 1996. No. 4. pp. 21–23.
2. Platonov O. I., Tsemekhman L. Sh. Tsvetnye Metally — Non-ferrous metals. 2007. No. 2. pp. 63–68.
3. Ilyukhin I. V., Kozlov A. N., Sapegin Yu. V. et al. Tsvetnye Metally — Non-ferrous metals. 2008. No. 12. pp. 44–46.
4. Sablukova I. V., Ilyukhin I. V., Sergeeva L. V. et al. O vybore katalizatora dlya protsessa ochistki SO2-soderzhashchikh gazovykh vybrosov metallurgicheskikh proizvodstv (About the choice of catalyst for the process of purification of SO2-containing gas emissions of metallurgical enterprises). Tezisy dokladov vserossiyskoy konferentsii s mezhdunarodnym uchastiem “KATEK 2007”, Sankt-Peterburg, 11–14 dekabrya 2007 (Thesis of a report of All-Russian conference with international participation “KATEK 2007”, Saint Petersburg, December 11–14, 2007). Novosibirsk : Boreskov Institute of Catalysis (Siberian Branch of Russian Academy of Sciences), 2007. pp. 262– 263.
5. Artemova I. I., Zinchenko T. O., Molchanov S. A., Zolotovskiy B. P. Kataliz v promyshlennosti — Catalysis in Industry. 2009. No. 2. pp. 33–38.
6. Clark P. D., Dowling N. I., Huang M. Conversion of CS2 and COS over alumina and titania under Claus process conditions: reaction with H2O and SO2. Applied Catalysis B: Environmental. 2001. Vol. 31. pp. 107–112.
7. Zaytsev V. I., Kozlov A. N., Ilyukhin I. V. et al. Tsvetnye Metally — Non-ferrous metals. 2007. No. 7. pp. 76–79.
8. Rumshiskiy L. Z. Matematicheskaya obrabotka rezultatov eksperimenta (Metallic processing of experiment results). Moscow : Nauka, 1971. 192 p.
9. Klaus Doerffel. Statistika v analiticheskoy khimii (Statistics in analytical chemistry). Moscow : Mir, 1994. 268 p.
10. Trusov N. V., Grin G. I., Prezhdo V. V. Teoreticheskie osnovy khimicheskoy tekhnologii — Theoretical Foundations of Chemical Engineering. 2002. Vol. 36, No. 5. pp. 554–560.
11. Grunvald V. R. Tekhnologiya gazovoy sery (Technology of gas sulfur). Moscow : Khimiya, 1992. 272 p.
12. Vasilev Yu. V., Knyazev M. V., Platonov O. I. et al. Tsvetnye Metally — Non-ferrous metals. 2003. No. 7. pp. 75–79.
13. Katkov A. L., Malov E. I., Koptenarmusov V. B. et al. Izvestiya vuzov. Tsvetnaya metallurgiya — Russian Journal of Non-Ferrous Metals. 2007. No. 2. pp. 34–37.
14. Platonov O. I., Tsemekhman L. Sh., Kalinkin P. N., Kovalenko O. N. Zhurnal prikladnoy khimii — Russian Journal of Applied Chemistry. 2007. Vol. 80, No.12. pp. 1953–1957.
15. Platonov O. I. Koks i khimiya – Coke and Chemistry. 2012. No. 6. pp. 37–42.
16. Platonov O. I., Tsemekhman L. Sh. Zhurnal prikladnoy khimii — Russian Journal of Applied Chemistry. 2008. Vol. 81, No. 10. pp. 1597–1600.
17. Stone F., Huffmaster M., Massie S. Predicting SCOT catalyst activity. Sulphur. 2005. No. 300. pp. 45–52, 54, 56.

Language of full-text russian
Full content Buy