Method for preparing 2-methylfuran
A technology of methyl furan and catalyst, applied in the field of preparation of 2-methyl furan, can solve the problems of low selectivity, environmental pollution, poor reusability, etc., achieve high activity and selectivity, convenient preparation process, and easy industrial production Effect
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[0012] Specific embodiment 1: This embodiment is a method for preparing 2-methylfuran, which is specifically completed according to the following steps:
[0013] A nickel phosphide catalyst is used as a catalyst to catalyze the hydrodeoxygenation of furfural to obtain 2-methylfuran.
[0014] Ni with a hexagonal space structure 2 P has two different Ni sites and P sites, Ni(1) and Ni(2) in its bulk structural unit. Ni(1) site has hydrogenolysis activity, while Ni(2) site has hydrogenation activity. Makes Ni 2 P catalyst surface It can be used as the hydrogenation active site for furfural hydrodeoxygenation to prepare 2-methylfuran; at the same time, Ni 2 The P-OH group on the surface of the P catalyst can be used as The acid center promotes the deoxygenation reaction. Therefore, in Ni 2 Metal in P Center and The synergistic effect of the acid center P-OH will be able to efficiently catalyze the selective hydrodeoxygenation of furfural to prepare 2-methylfuran.
Example Embodiment
[0015] Specific embodiment two: this embodiment is different from specific embodiment one in that: the nickel phosphide catalyst, furfural and solvent are placed in the autoclave to obtain the mixture, the air in the autoclave is replaced by hydrogen, and the flow continues Enter hydrogen until the pressure in the autoclave reaches 0.5MPa~3.0MPa, and react with magnetic stirring at a pressure of 0.5MPa~3.0MPa, a temperature of 200~260℃ and a hydrogen atmosphere for 4h~12h, and then cool to room temperature to separate the phosphorus After removing nickel catalyst, 2-methylfuran is obtained. Others are the same as the first embodiment.
[0016] This embodiment overcomes the shortcomings of Cr pollution in industrial catalysts.
[0017] The preparation process of 2-methylfuran in this embodiment is convenient;
[0018] The catalyst used in this embodiment has high activity and selectivity, the conversion rate of furfural can reach 100%, and the selectivity of 2-methylfuran can reach ...
Example Embodiment
[0020] Specific embodiment three: This embodiment is different from the specific embodiment two in that: the volume ratio of furfural to solvent is 1:(3-10). Others are the same as the second embodiment.
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