JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Catalysis, Kinetics and Reactor Design
Removal of Hydrogen Sulfide Contained in Smelt-Off-Gas by Selective Oxidation over Co3O4/SiO2 Catalyst
DAE WON PARKSUNG WOO CHUNBYUNG KUK PARK
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2001 Volume 34 Issue 2 Pages 274-278

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Abstract

The catalytic oxidation of hydrogen sulfide in the presence of excess water and ammonia on Co3O4/SiO2 catalyst is studied with a fixed bed flow reactor. Hydrogen sulfide was successfully converted to a mixture of elemental sulfur and ammonium thiosulfate (ATS) without considerable emission of sulfur dioxide. A high concentration of hydrogen sulfide and ammonia increases the sulfur production. However, ATS increases with increasing oxygen and water vapor. From the experimental results, complex reaction paths are proposed for the production of elemental sulfur and ATS.

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© 2001 The Society of Chemical Engineers, Japan
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