Method for preparing 2,5-dimethylfuran through hydrogenation of 5-hydroxymethyl furfural

A technology for hydroxymethylfurfural and dimethylfuran, which is applied in the field of preparation of 2,5-dimethylfuran by catalyzing the hydrogenation of 5-hydroxymethylfurfural to achieve the effects of excellent yield, simple operation and low cost
CN109503525AActive Publication Date: 2019-03-22YANTAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YANTAI UNIV
Publication Date
2019-03-22

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Abstract

The invention discloses a method for preparing 2,5-dimethylfuran through hydrogenation of 5-hydroxymethyl furfural. The method comprises the following steps: 1) charging an autoclave with hydrogen gasof 1MPa prior to a reaction, exhausting the gas for 5 times, and then, charging the autoclave with hydrogen gas; 2) putting HCP-Co, which serves as a catalyst, into the autoclave together with a tetrahydrofuran solvent, then, adding the 5-hydroxymethyl furfural, then, introducing hydrogen gas of 1.6MPa to 2.2MPa, and carrying out a reaction at the temperature of 160 DEG C to 200 DEG C for 1.5 to5.0 hours while maintaining the stirring rate of 500r / min, thereby obtaining the 2,5-dimethylfuran, wherein the mole ratio of the HCP-Co to the 5-hydroxymethyl furfural is 1: (1 to 5). According to the method, the process flow is simple in operation, the selectivity is high, and the cost is low; compared with a ruthenium catalyst, the catalyst used in the method is higher in selectivity and higherin DMF yield and is more economical.
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Description

technical field

[0001] The invention relates to the technical field of catalysts, in particular to a preparation method for catalyzing the hydrogenation of 5-hydroxymethylfurfural to prepare 2,5-dimethylfuran. Background technique

[0002] With the progress of the times, the contradiction between the reduction of non-renewable resource petroleum fuels and the increasing demand of human beings for petroleum fuels will become increasingly prominent. Seeking renewable resources to replace petroleum as fuel is of great significance to reduce the dependence of human production and life on petroleum fuels.

[0003] 5-Hydroxymethylfurfural is one of the intermediate products of cellulose degradation. Its molecule contains a carbonyl group and a hydroxyl group. It can be derived from chemical reactions such as catalytic hydrogenation, oxidative dehydrogenation, esterification, and halogenation. product. The energy density of 2,5-dimethylfuran (30MJ / L) and the energy density of gas...

Claims

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