Dehydration of xylose to furfural using a Lewis or Bronsted acid catalyst and N2 stripping

被引：34

作者：

Agirrezabal-Telleria, Iker ^{[1
]}

Garcia-Sancho, Cristina ^{[2
]}

Maireles-Torres, Pedro ^{[2
]}

Luis Arias, Pedro ^{[1
]}

机构：

[1] Univ Basque Country EHU UPV, Sch Engn, Dept Chem & Environm Engn, Bilbao 48013, Spain

[2] Univ Malaga, Fac Sci, Unit Associated ICP CSIC, Dept Inorgan Chem Cristallog & Mineral, E-29071 Malaga, Spain

来源：

CHINESE JOURNAL OF CATALYSIS | 2013年 / 34卷 / 07期

关键词：

Lewis acid; Bronsted acid; Reaction mechanism; Xylose dehydration; Furfural; Nitrogen stripping; LIQUID-PHASE DEHYDRATION;

D O I：

10.1016/S1872-2067(12)60599-3

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The activity of Lewis (Nb2O5) and Bronsted (Amberlyst 70) acid catalysts for the cyclodehydration of xylose to furfural was studied. The nature of the acidity resulted in significant changes in the reaction mechanism. Lewis acid sites promote the formation of xylulose, while Bronsted acid sites are required to further dehydrate the sugar to furfural. Amberlyst 70 in water/toluene at 175 degrees C showed lower activity but gave a higher furfural yield. Using N-2 as the stripping agent considerably improved the furfural yield and product purity in the stripped stream. Catalyst stability was also studied. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：1402 / 1406

页数：5

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