Dynamic analysis of removal and selective oxidation of H2S to elemental sulfur over Cu-V and Cu-V-Mo mixed oxides in a fixed bed reactor

Date

2004-10-01

Author

Yasyerli, S
Dogu, G
Ar, I
Doğu, Timur

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Selective oxidation of H2S to elemental sulfur was studied using the Cu-V and Cu-V-Mo mixed oxide catalysts with different O-2/H2S ratios between 0 and 3. High activities and high sulfur selectivities reaching 0.98 were obtained with the Cu-V catalyst. The Cu-V-Mo mixed oxide catalyst showed higher activity with a somewhat less selectivity. The Cu-V catalyst, which was originally in the form of alpha-Cu2V2O7, was converted to Cu3VS4, CuS and VOx during the initial stages of reaction. Oxidized form of the catalyst resulted in the formation of mostly SO2. Partially reduced catalyst containing V+2 and V+4 was highly selective for the production of elemental sulfur, which was produced by a series of redox reactions involving lattice oxygen.

Subject Keywords

Industrial and Manufacturing Engineering, Applied Mathematics, General Chemistry, General Chemical Engineering

URI

https://hdl.handle.net/11511/62952

Journal

CHEMICAL ENGINEERING SCIENCE

DOI

https://doi.org/10.1016/j.ces.2004.03.045

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

S. Yasyerli, G. Dogu, I. Ar, and T. Doğu, “Dynamic analysis of removal and selective oxidation of H2S to elemental sulfur over Cu-V and Cu-V-Mo mixed oxides in a fixed bed reactor,” CHEMICAL ENGINEERING SCIENCE, pp. 4001–4009, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62952.