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Effect of support on hydrogenolysis of glycerol over cu catalysts
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نویسنده
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zhou j. ,hao s. ,zhao n. ,xiao f. ,wei w. ,sun y.
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منبع
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journal of the chemical society of pakistan - 2012 - دوره : 34 - شماره : 4 - صفحه:807 -814
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چکیده
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Hydrogenolysis of biomass-derived glycerol is an alternative route to produce 1,2-propanediol. supported cu catalysts were prepared by the wetness impregnation method and characterized by n 2 adsorption-desorption,x-ray powder diffraction (xrd),x-ray photoelectron spectroscopy (xps),fourier transformed infrared spectroscopy (ft-ir),temperature programmed desorption of nh3 (nh 3-tpd) and temperature programmed reduction (tpr) techniques,and then tested for glycerol hydrogenolysis. it was found that the nature of support significantly affected the performance of the catalysts,revealing a correlation between catalytic activity and total acidity. compared with zro 2,sio 2 and hzsm- 5,γ-al 2o 3 showed superior performance due to its surface properties,and with 20wt% cu loaded,glycerol conversion and 1,2-propanediol selectivity reached 85.05% and 85.71% at 513 k and 6 mpa h 2,respectively.
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کلیدواژه
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2-Propanediol; Acidity; Glycerol; Hydrogenolysis; Support
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آدرس
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state key laboratory of coal conversion,institute of coal chemistry,chinese academy of sciences,taiyuan,030001,china,graduate school of the chinese academy of sciences,beijing, China, state key laboratory of coal conversion,institute of coal chemistry,chinese academy of sciences,taiyuan,030001,china,graduate school of the chinese academy of sciences,beijing, China, state key laboratory of coal conversion,institute of coal chemistry,chinese academy of sciences,taiyuan, China, state key laboratory of coal conversion,institute of coal chemistry,chinese academy of sciences,taiyuan, China, state key laboratory of coal conversion,institute of coal chemistry,chinese academy of sciences,taiyuan, China, state key laboratory of coal conversion,institute of coal chemistry,chinese academy of sciences,taiyuan,030001,china,low carbon energy conversion center,shanghai advanced research institute,chinese academy of sciences,shanghai, China
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Authors
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