糠醛
Nafion公司
木糖
催化作用
化学
产量(工程)
甲醇
有机化学
化学工程
核化学
材料科学
发酵
电化学
电极
物理化学
工程类
冶金
作者
Edmond Lam,Ehsan Majid,Alfred C. W. Leung,J.H. Chong,Khaled A. Mahmoud,John H. T. Luong
出处
期刊:Chemsuschem
[Wiley]
日期:2011-03-17
卷期号:4 (4): 535-541
被引量:116
标识
DOI:10.1002/cssc.201100023
摘要
Nafion 117 has been proven as a robust and reusable heterogeneous catalyst for the dehydration of 9.1 % (w/w) xylose in dimethyl sulfoxide (DMSO) to yield 60 % furfural in 2 h at 150 °C. The catalytic high activity promoted shorter reaction times to limit the formation of side-products which otherwise would lead to decreased yields. Within the allowable operating temperature range of Nafion (125 to 175 °C), the reaction was kinetically controlled. In corroboration with AFM and SEM imaging, ATR-FTIR confirmed that the Nafion catalytic activity remained unchanged after 15 repeated uses. With excellent chemical and thermal stability under the conditions for xylose dehydration compared to existing solid acid catalysts, this reusable Nafion system could be a step towards the more economical production of furfural from renewable biomass, an intermediate chemical for the preparation of value-added chemicals.
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