Abstract
The activity of CR-31 aluminum-oxide catalyst (La Roche Chemicals) over a period of 6.5 years (2000–2007) in the Claus reactor of byproduct-trapping shop 2 is monitored within the coke plant at OAO Magnitogorskii Metallurgicheskii Kombinat. The rate and extent of irreversible deactivation of the aluminum-oxide catalyst due to hydrothermal aging are found to be fundamentally different in the conversion of hydrogen sulfide than in the conversion of carbonyl sulfide. It is expedient to use different catalysts in different stages of sulfur extraction: in the first stage, the catalyst should be optimized for the conversion of organosulfur compounds; in the second stage, the best choice is a traditional aluminum-oxide catalyst for the Claus conversion of hydrogen sulfide.
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References
Taranenko, I.V., Increasing Sulfur Extraction, Koks Khim., 1988, no. 5, pp. 56–57.
Thielert, H., Patent 1527013E, 2005.
Platonov, O.I., Desulfurization of Coke-Oven Gas: Experience and Prospects, Koks Khim., 2007, no. 8, pp. 27–33.
Kalinkin, P.N., Kovalenko, O.N., and Platonov, O.I., Analysis of the Deactivation of Aluminum-Oxide Claus Catalyst in Industrial Operation, Katal. Prom., 2011, no. 1, pp. 67–73.
Clark, P.D., Dowling, N.I., and Huang, M., Conversion of CS2 and COS over Alumina and Titania under Claus Process Conditions: Reaction with H2O and SO2, Appl. Catal. B: Env., 2001, vol. 31, pp. 107–112.
Mel’nikov, I.I., Reprintseva, L.I., Bakhareva, V.P., et al., Analytical Monitoring of the Removal of Ammonia, Sulfur, and Cyanide from Coke-Oven Gas, Koks Khim., 2001, no. 12, pp. 20–23.
Platonov, O.I. and Tzhemekhman, L.Sh., Gas Composition, Sulphur, 2009, no. 322, pp. 47–49.
Platonov, O.I., Sulfur Production from Metallurgical Gases: Principles and Practice, Saarbrücken, Germany: Lambert Academic, 2012.
Pearson, M.J., Recent Developments in Claus Catalysts, Hydrocarbon Proc., 1973, vol. 52, no. 2, pp. 81–85.
Kijlstra, W.S., Clark, P.D., Dowling, N.I., and Huang, M., Putting Claus Catalysts to the Test, Sulphur, 2001, no. 276, pp. 71–79.
Additional information
Original Russian Text © O.I. Platonov, 2012, published in Koks i Khimiya, 2012, No. 6, pp. 37–42.
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Platonov, O.I. Aging of aluminum-oxide catalyst in the claus reactor during desulfurization of coke-oven gas. Coke Chem. 55, 242–246 (2012). https://doi.org/10.3103/S1068364X12060063
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DOI: https://doi.org/10.3103/S1068364X12060063