Hydrogen Production by Ethanol Steam Reforming over Pd/γ-Al_2O

化学工业与工程

Chemcial Industry and Engineering

2007, Vol. 24

Issue (5) :389-393 DOI:

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Hydrogen Production by Ethanol Steam Reforming over Pd/γ-Al_2O_3 Catalyst

WANG Hao,ZHANG Yue,MA Xin-bin(Key Laboratory of Green Chemistry Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)

(Key Laboratory of Green Chemistry Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

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Abstract The reaction of ethanol steam reforming for hydrogen-rich gas streams production,over a commercial alumina supported palladium catalyst was investigated.In particular,the dependence of the catalytic activity and selectivity on reaction temperature,Pd loading with γ-Al_2O_3 was studied.In order to evaluate the catalytic stability,long-term experiments were also performed.Hydrogen selectivity was proportional to the high Pd loading or high reactor temperature.Hydrogen selectivity up to maximum value(136%) were obtained at 5%Pd/Al_2O_3(weight ratio)under(650 ℃) reactor temperature.And hydrogen selectivity up to 110% was obtained at temperature close to(750 ℃) with 1%Pd/Al_2O_3(weight ratio)catalyst.Pd/Al_2O_3 catalysts was characterized using NH_3-TPD,TGA.

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Received 2007-09-15; published 2007-09-15

Cite this article:

WANG Hao,ZHANG Yue,MA Xin-bin.Hydrogen Production by Ethanol Steam Reforming over Pd/γ-Al_2O_3 Catalyst[J] Chemcial Industry and Engineering, 2007,V24(5): 389-393