【摘要】 C2~C3多元醇如乙二醇、丙二醇和丙三醇等通常为石油的下游产品。近年来,随着石油价格不断攀升,由山梨醇等可再生资源经催化氢解制备这些小分子醇受到人们的关注。采用山利醇和催化剂Ru/C制备多元醇,并通过活性评价以及TPR、XRD等表征手段确定了催化剂的制备条件,其产物乙二醇、1,2-丙二醇、1,3-丙二醇和丙三醇的选择性分别为28.86%、24.25%、10.97%和9.15%。更多还原

【Abstract】 Lower polyhydric alcohols such as glycerol,ethylene and propylene glycols,were product in petrochemical traditionally.In recent years,the price of base oil raised gradually,so a mixture of lower polyhydric alcohols derived from biosustainable resources of sugar and higher polyhydric alcohol by catalytic hydrogenolysis were explored in the worldwide.Ru/C catalyst was prepared by the procedure of isometric impregnation.The reduction temperature,reduction time and Ru content of Ru/C were optimized by means of the activity text,temperature program revert(TPR),X-ray diffraction(XRD).It is concluded Ru/C catalyst have a high performance,the selectivities for ethylene glycol(EG),1,2-propylene glycol(1,2-PG),1,3-propylene glycol(1,3-PG),glycerol(GL) were 28.86%,24.25%,10.97%,9.15% respectively.更多还原