Preparation of Fe-BEA zeolites by isomorphous substitution for oxidehydration of glycerol to acrylic acid

被引：24

作者：

Diallo, Modibo Mounguengui ^{[1
]}

Mijoin, Jerome ^{[1
]}

Laforge, Sebastien ^{[1
]}

Pouilloux, Yannick ^{[1
]}

机构：

[1] Univ Poitiers, CNRS, Inst Chim Milieux & Mat Poitiers IC2MP, F-86073 Poitiers, France

来源：

CATALYSIS COMMUNICATIONS | 2016年 / 79卷

关键词：

Acrylic acid; Oxidehydration; Renewable resources; Zeolite; N2O DECOMPOSITION; OXIDE CATALYSTS; NITROUS-OXIDE; ACTIVE-SITES; OXIDATION; DEHYDRATION; ACROLEIN; IRON; CONVERSION; REDUCTION;

D O I：

10.1016/j.catcom.2016.03.003

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：

The preparation by post-synthesis isomorphous substitution of Fe-x-BEA-Y in one step was investigated for the oxidehydration of pure glycerol. TPR and DR UV-vis highlighted the presence of Fe(+III) species in the framework of zeolites. Iron allows the activation of the catalyst by the reduction by glycerol of part of Fe(+III) into Fe(+II) species, which stabilizes the glycerol conversion. Total glycerol conversion is obtained with 4 wt% of iron and acrylic acid yield reaches 23% over this catalyst. The Fe(+III) tetrahedral species are thought to be the main active redox sites for the formation of acrylic acid. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：58 / 62

页数：5

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