An in Situ Raman Spectroscopic Study of Benzothiophene and Its Desulfurization under Alkaline Hydrothermal Conditions

被引：6

作者：

Huo, Zhibao ^{[1
]}

Jin, Fangming ^{[1
]}

Yao, Guodong ^{[1
]}

Enomoto, Heiji ^{[2
]}

Kishita, Atsushi ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

[2] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, Sendai, Miyagi 9808579, Japan

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2015年 / 54卷 / 04期

基金：

中国国家自然科学基金;

关键词：

SUPERCRITICAL WATER; VIBRATIONAL-SPECTRA; HIGH-TEMPERATURE; HYDRODESULFURIZATION; BITUMEN; CATALYSTS; DIBENZOTHIOPHENE; DERIVATIVES; CONVERSION; EXCHANGE;

D O I：

10.1021/ie503167q

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, an in situ Raman spectroscopic study of benzothiophene (BT) and its desulfurization under alkaline hydrothermal conditions is reported. The Raman spectrum of BT was obtained. Based on results of Raman in situ observations combined with GC/MS analyses, the mechanism of desulfurization was investigated. Benzothiophene was desulfurized via a two-step process involving (1) the hydrogenation of benzothiophene at the C2 and C3 positions to produce 2,3-dihydrobenzothiophene and (2) the cleavage of the benzene ring-S bond and the C2-S bond to form aromatic products, i.e., ethylbenzene and toluene. The present study provides deep insights into the pathway of BT desulfurization, which is of great significance for developing new methods for the desulfurization of BT using hydrothermal reactions, and will also contribute to the Raman spectroscopic database.

引用

页码：1397 / 1406

页数：10

共 24 条

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