Raney铜催化糠醛选择性加氢制备环戊酮和环戊醇

Selective hydrogenation of furfural to cyclopentanone and cyclopentanol over Raney copper catalyst

摘要:

以Raney铜催化糠醛加氢制备环戊酮和环戊醇。考察了溶剂类型、溶剂比例、溶剂与糠醛的比例、反应温度、氢气压力及反应时间等实验参数对糠醛转化率和选择性的影响。结果表明：以体积比4:1的甲醇和水作为溶剂，糠醛与溶剂体积比1:10，温度180℃，氢气压力3MPa，反应时间4h时，Raney铜催化糠醛加氢对于环戊酮和环戊醇表现出良好的活性和选择性，糠醛转化率达98.9%，环戊酮和环戊醇的选择性分别为52.9%和19.3%。采用XRD、BET和SEM对Raney铜催化剂的微观结构进行了表征。

Abstract:

Raney copper has been employed for the catalytic hydrogenation of furfural (FA) to cyclopentanone (CPO)and cyclopentanol(CPL).Effects of solvent type, volume ratio of solvent , volume ratio of reactants and solvent, reaction temperature ,reaction pressure and reaction time on the FA conversion and selectivity are investigated in detail. Under the optimal conditions (V(methanol):V(water)= 4:1, V(FA):V(solvent)=1:10,180℃,3MPa and 4 h)),the conversion of furfural is 98.9% and the selectivity of cyclopentanone and cyclopentanol is 52.9% and 19.3% respectively. The microstructure of Raney copper is characterized by XRD, BET and SEM.