Selective oxidation of H2S in the presence of ammonia and water using Co3O4/SiO2 catalyst

Chun SW; Jang JY; Park DW; Woo HC; Chung JS

Korean Journal of Chemical Engineering, Vol.14, No.3, 216-218, May, 1997

Selective oxidation of H₂S in the presence of ammonia and water using Co₃O₄/SiO₂ catalyst

Chun SW, Jang JY, Park DW, Woo HC, Chung JS

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.

Keywords:Selective oxidation;Hydrogen sulfide;Ammonia;Water;Catalyst

[References]

Berben PH, Geus JW, "Catalyst for the Selective Oxidation of Sulfur Containing Compounds to Elemental Sulfur," U.S. Patent, 4,818,740 (1989)
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)

[Referenced By]

[1] Berben PH, Geus JW, "Catalyst for the Selective Oxidation of Sulfur Containing Compounds to Elemental Sulfur," U.S. Patent, 4,818,740 (1989)

[2] 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)

[3] Chopin T, Hebrard JL, Quemere E, "Catalyst for Tail Gas Treatment and Process for Tail Gas Treatment," European Patent, 422,999 (1990)

[4] Chun SW, Park DW, Woo HC, Hong SS, Chung JS, J. Korean Ind. Eng. Chem., 7(4), 645 (1996)

[5] Hartley EM, Matteson MJ, Ind. Eng. Chem. Fundam., 14, 67 (1975)

[6] Kettner R, Liermann N, Oil Gas J., 11, 63 (1983)

[7] Kettner R, Lubcke T, Liermann N, "Process for the Reduction of the Sulfur Content in a Gaseous Stream," European Patent, 78,690 (1982)

[8] Lagas JA, Borsboom J, Berben PH, Oil Gas J., 10, 68 (1988)

[9] Terorde RJAM, Brink PJ, Visser LM, Dillen AJ, Catal. Today, 17, 217 (1993)

[10] Wieckowska J, Catal. Today, 24(4), 405 (1995)