Removal of Hydrogen Sulfide Contained in Smelt-Off-Gas by Selective Oxidation over Co3O4/SiO2 Catalyst

DAE WON PARK; SUNG WOO CHUN; BYUNG KUK PARK

doi:10.1252/jcej.34.274

Catalysis, Kinetics and Reactor Design

Removal of Hydrogen Sulfide Contained in Smelt-Off-Gas by Selective Oxidation over Co₃O₄/SiO₂ Catalyst

DAE WON PARK, SUNG WOO CHUN, BYUNG KUK PARK

著者情報

キーワード: Hydrogen Sulfide, Selective Oxidation, Co₃O₄/SiO₂ Catalyst, Elemental Sulfur, Ammonium Thiosulfate

ジャーナル認証あり

2001 年 34 巻 2 号 p. 274-278

DOI https://doi.org/10.1252/jcej.34.274

詳細

抄録

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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