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

被引：22
|
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
收藏
页码：20 / 24
页数：5
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