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Catalytic Hydrogenation/Hydrogenolysis of 5-Hydroxymethylfurfural to 2,5-Dimethylfuran.
ChemSusChem ( IF 7.5 ) Pub Date : 2020-09-17 , DOI: 10.1002/cssc.202001927
Päivi Mäki-Arvela 1 , Doris Ruiz 2 , Dmitry Yu Murzin 1
Affiliation  

Recent developments in transformations of biobased 5‐hydroxymethylfurfural to 2,5‐dimethylfuran, a potential liquid fuel, are critically summarized. The highest yield of 2,5‐dimethylfuran (more than 98 %) from 5‐hydroxymethylfurfural are obtained over bimetallic Cu−Co supported on carbon at 180 °C under 5 bar hydrogen in 2‐propanol and over Ni supported on mesoporous carbon at 200 °C under 30 bar hydrogen in water in a batch reactor. The desired catalyst should have relatively high metal dispersion and some acidity to facilitate both hydrogenation and hydrogenolysis. However, overhydrogenation and overhydrogenolysis forming 2,5‐dimethyltetrahydrofuran and methylfuran, respectively, should be suppressed. Furthermore, a hydrophobic support is more selective than oxide‐based support. After a careful adjustment of the residence time in a continuous reactor it is also possible to produce high yields of 2,5‐dimethylfuran even over Pt/C. The main challenges limiting the industrial feasibility of these reactions are relatively low initial reactant concentration, catalyst deactivation by sintering, leaching and coking. In addition to selection of optimum reaction conditions and catalyst properties, kinetic modelling was also summarized.

中文翻译:

5-羟基甲基糠醛的催化加氢/氢解为2,5-二甲基呋喃。

严格总结了生物基5-羟甲基糠醛向2,5-二甲基呋喃(一种潜在的液体燃料)的转化的最新进展。在180°C下于5 bar氢气中于2-丙醇中于180°C负载在碳上的双金属Cu-Co和在200°C下由中孔碳负载的Ni上,从5-羟甲基糠醛获得最高产率的2,5-二甲基呋喃(超过98%)间歇反应器中,在水中30 bar氢气下,在°C下。所需的催化剂应具有较高的金属分散性和一定的酸度,以促进氢化和氢解。但是,应抑制分别形成2,5-二甲基四氢呋喃和甲基呋喃的过度氢化和过度氢解。此外,疏水性载体比基于氧化物的载体更具选择性。仔细调整连续反应器中的停留时间后,即使在Pt / C以上,也可能产生高产率的2,5-二甲基呋喃。限制这些反应的工业可行性的主要挑战是较低的初始反应物浓度,通过烧结,浸出和焦化引起的催化剂失活。除了选择最佳反应条件和催化剂性能外,还总结了动力学模型。
更新日期:2020-09-17
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