Dehydration of xylose and glucose to furan derivatives using Afunctional partially hydroxylated MgF2 catalysts and N2-stripping

I. Agirrezabal-Telleria; Y. Guo; F. Hemmann

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Dehydration of xylose and glucose to furan derivatives using Afunctional partially hydroxylated MgF2 catalysts and N2-stripping

机译：木糖和葡萄糖脱水，使用副官能的部分羟基化的MGF2催化剂和N2-Stripping将葡萄糖脱水至Furan衍生物

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The current furfural production yield is low due to the use of non-selective homogeneous catalysts and expensive separation. In this work, partially hydroxylated MgF2 catalysts, synthesized using different water contents, were screened during xylose dehydration in water-toluene at 160 °C. The different Lewis/Bronsted ratios on the MgF2 catalysts showed that under-coordinated Mg can isomerize xylose to xylulose, whilst the surface OH-groups were responsible for the dehydration reactions. The presence of glucose as a co-carbohydrate reduced the furfural selectivity from 86 to 81%, whilst it also led to high 5-hydroxymethylfurfural selectivity. The tests catalyzed by MgF2 in combination with simultaneous N2-stripping showed that a furfural selectivity of 87% could be achieved using low xylose loadings. Moreover, the catalysts regenerated by H2O2 showed high activity during the dehydration tests in water-toluene at 160 °C.

机译：由于使用非选择性均匀催化剂和昂贵的分离，目前的呋喃生产产量很低。在这项工作中，在160°C的水 - 甲苯中二氢脱水过程中筛选了使用不同水含量合成的部分羟基化的MGF2催化剂。 MGF2催化剂上不同的Lewis/Bronsted比率表明，协调不足的MG可以将木糖异构化为木糖糖，而表面OH组则负责脱水反应。葡萄糖作为共碳水化合物的存在从86％降低至81％，同时也导致了高5-羟基甲基氟化膜的选择性。由MGF2催化的测试与同时的N2刮擦结合表明，使用低木糖载荷可以实现87％的呋喃选择性。此外，通过H2O2再生的催化剂在160°C的水甲苯中的脱水测试期间显示出较高的活性。

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《Catalysis science & technology》 |2014年第5期|1357-1368|共12页
作者
I. Agirrezabal-Telleria; Y. Guo; F. Hemmann;
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作者单位

Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country (UPV/EHU), Alameda Urquijo sin, 48013, Bilbao, Spain.;

BAM Federal Institute for Materials Research and Testing, Division 1, Richard Willstaetter Strafie 11, D-12489, Berlin, Germany;

Institutfur Chemie, Humboldt-Universitat zu Berlin, Brook-Taylor Strafie 2, D-12489, Berlin, Germany;

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正文语种英语
中图分类汉语教学;
关键词
xylose; Glucose; furfuralCatalystsfuran derivativeFurans;

机译：木糖;葡萄糖;呋喃催化剂;

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外文文献

1. Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system [J] . Boonrat, Pholjaroen, Ning, 能源化学：英文版 . 2013,第006期
2. Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system [J] . Boonrat Pholjaroen, Ning Li, Zhiqiang Wang, 天然气化学（英文版） . 2013,第6期
3. Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system [O] . Pholjaroen, Boonrat, Li, Ning, Wang, Zhiqiang, 2013

机译：Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system

Dehydration of xylose and glucose to furan derivatives using Afunctional partially hydroxylated MgF2 catalysts and N2-stripping

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