A kinetic study on the decomposition of 5-hydroxymethylfurfural into levulinic acid

被引：383

作者：

Girisuta, B. ^{[1
]}

Janssen, L. P. B. M. ^{[1
]}

Heeres, H. J. ^{[1
]}

机构：

[1] Univ Groningen, Dept Chem Engn, NL-9747 AG Groningen, Netherlands

来源：

GREEN CHEMISTRY | 2006年 / 8卷 / 08期

关键词：

D O I：

10.1039/b518176c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Levulinic acid (LA), accessible by the acid catalyzed degradation of biomass, is potentially a very versatile green intermediate chemical for the synthesis of various (bulk) chemicals for applications like fuel additives, polymers, and resin precursors. We report here a kinetic study on one of the key steps in the conversion of biomass to levulinic acid, i.e. the reaction of 5-hydroxymethylfurfural (HMF) to levulinic acid. The kinetic experiments were performed in a temperature window of 98-181 degrees C, acid concentrations between 0.05-1 M, and initial HMF concentrations between 0.1 and 1 M. The highest LA yield was 94% (mol/mol), obtained at an initial HMF concentration of 0.1 M and a sulfuric acid concentration of 1 M. The yield at full HMF conversion is independent of the temperature. An empirical rate expression for the main reaction as well as the side reaction to undesired humins was developed using the power law approach. Agreement between experimental and model data is good. The rate expressions were applied to gain insights into optimum process conditions for batch processing.

引用

页码：701 / 709

页数：9

共 24 条

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