H-Y/β双微孔沸石分子筛催化果糖脱水生成5-羟甲基糠醛的研究

Dehydration of fructose into 5-hydroxymethylfurfural in the presence of H-Y/β double micro-porous zeolite

研究了以H-Y/β双微孔沸石分子筛为催化剂,果糖脱水转化为5-羟甲基糠醛(HMF)的反应,考察不同催化剂、溶剂、助剂用量、反应温度和反应时间,以确定H-Y/Beta双微孔沸石分子筛催化剂催化果糖脱水转化为HMF的最佳反应条件。研究发现,以1 g果糖为原料,最佳反应条件为:催化剂0.05 g、溶剂二甲基亚砜(DMSO)30 mL、助剂聚乙烯吡咯烷酮(PVP)0.03 g、反应温度160℃、反应时间1.5 h,利用紫外分光光度法测定产物,并计算其产率为64.6%。

Dehydration of fructose into 5-hydroxymethylfurfural（HMF） in the presence of H-Y/β double micro-porous zeolite catalyst was studied.The dosage of catalyst,solvent,accessory ingredient,the reaction temperature and reaction time were explored to ascertain the optimum reaction condition.The study found that the optimum reaction conditions were：fructose 1g;the catalyst 0.05 g;DMSO 30 mL;PVP 0.03 g;temperature 160 ℃;time 1.5 h.The HMF was detected by UV spectrophotometer,and its yield was 64.6%.