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Selective oxidation of H2S in the presence of ammonia and water using Co3O4/SiO2 catalyst
Korean Journal of Chemical Engineering, May 1997, 14(3), 216-218(3), 10.1007/BF02706099
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Abstract
The catalytic performance of some metal oxide in the selective oxidation of H2S in the stream containing water vapor and ammonia was investigated in this study. Among the catalysts tested, Co3O4/SiO2 was the most promising catalyst for practical application. It showed very small amount of SO2 emission even in the presence of excess water and ammonia. The solid product formed in the reaction was a mixture of elemental sulfur, ammonium thiosulfate and ammonium sulfate.
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Brink PJ, Geus JW, "Catalyst for the Selective Oxidation of Sulphur Compounds to Elemental Sulfur, Process for Preparing Such a Catalyst and Method for the Selective Oxidation of Sulfur Compounds to Elemental Sulfur," European Patent, 409,353 (1990)
Chopin T, Hebrard JL, Quemere E, "Catalyst for Tail Gas Treatment and Process for Tail Gas Treatment," European Patent, 422,999 (1990)
Chun SW, Park DW, Woo HC, Hong SS, Chung JS, J. Korean Ind. Eng. Chem., 7(4), 645 (1996)
Hartley EM, Matteson MJ, Ind. Eng. Chem. Fundam., 14, 67 (1975)
Kettner R, Liermann N, Oil Gas J., 11, 63 (1983)
Kettner R, Lubcke T, Liermann N, "Process for the Reduction of the Sulfur Content in a Gaseous Stream," European Patent, 78,690 (1982)
Lagas JA, Borsboom J, Berben PH, Oil Gas J., 10, 68 (1988)
Terorde RJAM, Brink PJ, Visser LM, Dillen AJ, Catal. Today, 17, 217 (1993)
Wieckowska J, Catal. Today, 24(4), 405 (1995)
