Preparation of C_2��C_3 Polyhydric Alcohols by Ru/C Catalytic Hydrogenolysis of Sorbitol
ZHANG Hong,LIU Zong-zhang,ZHANG Min-hua(Key Laboratory of Green Synthesis Conversion,R&D Center for Petrochemical Technology,Tianjin University,Tianjin 300072,China)
(Key Laboratory of Green Synthesis Conversion,R&D Center for Petrochemical Technology,Tianjin University,Tianjin 300072,China
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.
ZHANG Hong,LIU Zong-zhang,ZHANG Min-hua.Preparation of C_2��C_3 Polyhydric Alcohols by Ru/C Catalytic Hydrogenolysis of Sorbitol[J]. Chemcial Industry and Engineering, 2008,25(2): 143-145
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2008, Vol. 25 
