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Indexed by:期刊论文

Date of Publication:2004-02-01

Journal:CATALYSIS LETTERS

Included Journals:Scopus、SCIE、EI

Volume:92

Issue:3-4

Page Number:163-167

ISSN No.:1011-372X

Key Words:thiophene; oxidation; titanium silicalite; hydrogen peroxide; desulfurization

Abstract:Thiophene is a typical thiophenic sulfur compound in gasoline. Using n-octane containing thiophene as the model compound, the oxidation of thiophene, which is a key step for the oxidative deep desulfurization of gasoline, was carried out to study the reactivity of thiophene in oxidation reactions. It has been observed that thiophene oxidation can occur using water or t-butanol as solvent. Kinetics of the reaction shows a pseudo-first-order toward thiophene or catalyst and a zero order toward hydrogen peroxide. The mechanism for this unique reaction was proposed as the activation of conjugated electron in thiophene ring.