Recovery and reduction of spent alumina-supported cobalt-molybdenum oxide catalyst via plasma sintering technique

被引：2

作者：

Wong, Fung Fuh ^{[1
]}

Chiang, Kuo-Chen ^{[2
,3
]}

Chen, Chun-Yen ^{[4
]}

Chen, Kun-Lung ^{[2
,3
]}

Huang, Jiann-Jyh ^{[5
]}

Yeh, Mou-Yung ^{[3
,4
]}

机构：

[1] China Med Univ, Grad Inst Pharmaceut Chem, Taichung 40402, Taiwan

[2] Natl Cheng Kung Univ, Dept Resources Engn, Tainan 70101, Taiwan

[3] Natl Cheng Kung Univ, Sustainable Environm Res Ctr, Tainan 709, Taiwan

[4] Natl Cheng Kung Univ, Dept Chem, Tainan 70101, Taiwan

[5] Dev Ctr Biotechnol, Xizhi City 221, Taipei, Taiwan

来源：

PLASMA CHEMISTRY AND PLASMA PROCESSING | 2008年 / 28卷 / 03期

关键词：

recovery; reduction; cobalt-molybdenum oxide catalyst; catalyst; plasma;

D O I：

10.1007/s11090-008-9128-0

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A thermal plasma process for the recovery and reduction of the spent alumina-supported cobalt-molybdenum oxide catalyst (Co3O4-MoO2/Al2O3) was developed. The spent catalyst was sintered at > 1,500 K under plasma condition and the cobalt-molybdenum oxide therein was reduced to cobalt-molybdenum, which was proven by XRD and EDX. By application of SEM and GC technique, the organic tar on the surface of the spent catalyst was found to decomposed and converted to syngas (CO, CO2, and H-2), which might be the reducing agents in the process. A gasification mechanism for the generation of syngas and the reduction of cobalt-molybdenum oxide under plasma conditions was proposed.

引用

页码：353 / 363

页数：11

共 26 条

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