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A Study on the Reaction Between HS and V(V) in Tannin Extract Desulfurization Technology

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The reaction between HS and pentavalent vanadium V(V) and its effect factors, such as reactant concentration, reaction temperature, and the pH value in tannin extract desulfurization technology has been researched in this article. The results show that the reaction between HS and V(V) is a quick reaction process. When the initial concentration of V(V) increases, the reaction speed accelerates, and the equilibrium conversion of HS rises. The effect of reaction temperature is smaller in the operation range of tannin extract desulfurization technology, and the reaction speed slows with the pH value enhancing. Additionally, a new reaction mechanism on the reaction between HS and V(V) was proposed by analyzing the experimental phenomena and the solid product.
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Keywords: element sulfur; hydrosulphide; polysulfide ions; tannin extract desulfurization technology; vanadium species

Document Type: Research Article

Affiliations: College of Chemistry and Chemical Engineering, Taiyuan University of Technology, TaiyuanShanxi, China

Publication date: June 17, 2011

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