Selective oxidation of hydrogen sulfide over mixture catalysts of V-Sb-O and Bi2O3

被引:10
作者
Kim, BG
Park, DW
Kim, I
Woo, HC
机构
[1] Pusan Natl Univ, Dept Chem Engn, Pusan 609735, South Korea
[2] Pukyong Natl Univ, Dept Chem Engn, Pusan 608739, South Korea
关键词
hydrogen sulfide; selective oxidation; phase cooperation; vanadium-antimony mixed oxide; OXIDE CATALYSTS; SULFUR;
D O I
10.1016/j.cattod.2003.10.007
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The selective oxidation of hydrogen sulfide containing excess water and ammonia was studied over vanadium-antimony mixed oxide catalysts. The investigation was focused on the phase cooperation between V-Sb-O and Bi2O3 in this reaction. Strong synergistic phenomenon in catalytic activity was observed for the mechanically mixed catalysts of V-Sb-O and Bi2O3. Temperature-programmed reduction (TPR) and oxidation (TPO), two separated bed reaction tests, and XPS analyses were carried out to explain this synergistic effect by the reoxidation ability of Bi2O3. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:11 / 17
页数:7
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