Catalytic desulfurization of residual oil through partial oxidation in supercritical water

被引：45

作者：

Yuan, PQ ^{[1
]}

Cheng, ZM ^{[1
]}

Jiang, WL ^{[1
]}

Zhang, R ^{[1
]}

Yuan, WK ^{[1
]}

机构：

[1] E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 2005年 / 35卷 / 01期

关键词：

desulfurization; partial oxidation; supercritical water; catalytic; residual oil;

D O I：

10.1016/j.supflu.2004.11.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Catalytic desulfurization of a model sulfur-containing compound benzothiophene (BT) through partial oxidation in supercritical water (SCW) was investigated in a bomb reactorat 623-723 K and 30-40MPa over sulfided CoMo/gamma-Al2O3. Vacuum residuum was used to confirm the desulfurization rate and efficiency, and the desulfurization mechanism of vacuum residuum was determined by the pyrolysis temperature (T-R) of the vacuum residuum (VR). For T > T-R, obvious reduction of sulfides up to 67% was obtained. The thermodynamic equilibrium of in situ H-2 generation was a controlling factor of the desulfurization pathway. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：70 / 75

页数：6

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