Reaction induced selectivity improvement in the hydrogenation of crotonaldehyde over Sn-Pt/SiO2 catalysts

被引：106

作者：

Margitfalvi, JL ^{[1
]}

Tompos, A ^{[1
]}

Kolosova, I ^{[1
]}

Valyon, J ^{[1
]}

机构：

[1] Hungarian Acad Sci, Cent Res Inst Chem, H-1025 Budapest, Hungary

来源：

JOURNAL OF CATALYSIS | 1998年 / 174卷 / 02期

基金：

匈牙利科学研究基金会;

关键词：

Sn-Pt/SiO2; catalyst; hydrogenation; crotonaldehyde; crotylalcohol formation; reaction induced selectivity improvement;

D O I：

10.1006/jcat.1998.1966

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：

Silica-supported Sn-Pt catalysts, prepared by controlled surface reactions between hydrogen adsorbed on platinum and tin tetraethyl, showed high activity and selectivity in the gas phase hydrogenation of crotonaldehyde to crotyl alcohol. The selectivity of the formation of crotyl alcohol (S-CO) had a strong dependence of the Sn/Pt ratio. The highest S-CO selectivity (around 70%) was obtained at Sn/Pt = 3. The characteristic feature of the Sn-Pt/SiO2 catalyst in the given reaction is the development of the S-CO selectivity during the time-on-stream period. The observed phenomenon was described as a reactant induced catalyst activation. (C) 1998 Academic Press.

引用

页码：246 / 249

页数：4

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