Gas-phase conversion of glycerol to allyl alcohol over vanadium-supported zeolite beta

被引：25

作者：

Alineida, Ruben ^{[1
]}

Filipa Ribeiro, M. ^{[2
]}

Fernandes, Auguste ^{[2
]}

Lourenco, Joao P. ^{[1
,2
]}

机构：

[1] Univ Algarve, CIQA, Fac Ciencias & Tecnol, Campus Gambelas, P-8005139 Faro, Portugal

[2] Univ Lisbon, Ctr Quim Estrutural, Inst Super Tecn, Av Rovisco Pais, P-1049001 Lisbon, Portugal

来源：

CATALYSIS COMMUNICATIONS | 2019年 / 127卷

关键词：

Allyl alcohol; Vanadium oxide; Glycerol conversion; Beta zeolite; Sustainable chemistry; DEHYDRATION; ACROLEIN; CATALYSTS; ACID; OXIDE; SPECTROSCOPY;

D O I：

10.1016/j.catcom.2019.04.015

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：

Vanadium oxide supported beta zeolite (Si/Al = 25, 4% V) was used as catalyst for the one-pass gas-phase conversion of glycerol to allyl alcohol without any external reductant. The catalytic data strongly suggest a consecutive reactions path involving the dehydration to acrolein over the zeolite acid sites followed by a selective reduction through a hydrogen-transfer reaction. Acidity is expected to play a major role in what concerns the selectivity, as demonstrated by the catalytic results obtained by the impregnation of vanadium on a previously Cs-exchanged sample that achieved ca. 30% selectivity to allyl alcohol at ca. 20% glycerol conversion.

引用

页码：20 / 24

页数：5

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