A Kinetic Study of Ethanol Steam Reforming Using a Nickel Based Catalyst

A kinetic study of ethanol steam reforming to produce hydrogen within the region of kinetic rate control was carried out. A Ni(II)–Al(III) lamellar double hydroxide as catalyst precursor was used. H2, CO, CO2 and CH4 were obtained as products. Using the Langmuir–Hinshelwood (L–H) approach, two kinetic models were proposed. The first was a general model including four reactions, two of them corresponding to ethanol steam reforming and the other two to methane steam reforming. When high temperatures and/or high water/ethanol feed ratios were used, the system could be reduced to two irreversible ethanol steam reforming reactions.

[1]  Ahmed Aboudheir,et al.  Kinetic modeling of hydrogen production by the catalytic reforming of crude ethanol over a co-precipitated Ni-Al2O3 catalyst in a packed bed tubular reactor , 2006 .

[2]  Daniel Duprez,et al.  Bio-ethanol catalytic steam reforming over supported metal catalysts , 2002 .

[3]  Pilar Ramírez de la Piscina,et al.  Efficient Production of Hydrogen over Supported Cobalt Catalysts from Ethanol Steam Reforming , 2002 .

[4]  Ahmed Aboudheir,et al.  Experimental, kinetic and 2-D reactor modeling for simulation of the production of hydrogen by the catalytic reforming of concentrated crude ethanol (CRCCE) over a Ni-based commercial catalyst in a packed-bed tubular reactor , 2007 .

[5]  L. F. Brown.  A comparative study of fuels for on-board hydrogen production for fuel-cell-powered automobiles , 2001 .

[6]  Wenjie Shen,et al.  Steam reforming of bio-ethanol for the production of hydrogen over ceria-supported Co, Ir and Ni catalysts , 2006 .

[7]  M. Jobbágy,et al.  Ni(II)-Al(III) layered double hydroxide as catalyst precursor for ethanol steam reforming: Activation treatments and kinetic studies , 2008 .

[8]  G. Froment,et al.  Chemical Reactor Analysis and Design , 1979 .

[9]  Feng Wu,et al.  H2 from steam reforming of ethanol at low temperature over Ni/Y2O3, Ni/La2O3 and Ni/Al2O3 catalysts for fuel-cell application , 2005 .

[10]  Jens R. Rostrup-Nielsen,et al.  Catalytic Steam Reforming , 1984 .

[11]  Mas Verónica,et al.  Ethanol steam reforming using Ni(II)-Al(III) layered double hydroxide as catalyst precursor: Kinetic study , 2008 .

[12]  Alírio E. Rodrigues,et al.  Kinetics of Steam Reforming of Ethanol over a Ru/Al2O3 Catalyst , 2006 .

[13]  F. Frusteri,et al.  Performance of Rh/Al2O3 catalyst in the steam reforming of ethanol: H2 production for MCFC , 2003 .

[14]  David Kendrick,et al.  GAMS, a user's guide , 1988, SGNM.

[15]  S. Kikkawa,et al.  A crystal-chemical study of Mg,Al and Ni,Al hydroxy-perchlorates and hydroxy-carbonates , 1979 .

[16]  M. A. Laborde,et al.  Hydrogen production by the steam reforming of ethanol: Thermodynamic analysis , 1991 .

[17]  J. Dalmon,et al.  CO-free hydrogen from steam-reforming of bioethanol over ZnO-supported cobalt catalysts , 2003 .

[18]  Xenophon E. Verykios,et al.  Production of hydrogen for fuel cells by steam reforming of ethanol over supported noble metal catalysts , 2003 .

[19]  R. Hughes,et al.  The kinetics of methane steam reforming over a Ni/α-Al2O catalyst , 2001 .

[20]  Heather Fry,et al.  A user’s guide , 2003 .

[21]  Norma Amadeo,et al.  Thermodynamic analysis of ethanol/water system with the stoichiometric method , 2006 .

[22]  Kamal K. Pant,et al.  Kinetic modeling of steam reforming of ethanol for the production of hydrogen over Co/Al2O3 catalyst , 2007 .

[23]  Xenophon E. Verykios,et al.  Reaction network of steam reforming of ethanol over Ni-based catalysts , 2004 .

[24]  Miguel Laborde,et al.  Hydrogen production from steam reforming of bioethanol using Cu/Ni/K/γ-Al2O3 catalysts. Effect of Ni , 2001 .

[25]  G. Froment,et al.  Methane steam reforming, methanation and water‐gas shift: I. Intrinsic kinetics , 1989 .

[26]  M. Laborde,et al.  Bio-ethanol steam reforming on Ni/Al2O3 catalyst , 2004 .

[27]  David A. Morgenstern and,et al.  Low-Temperature Reforming of Ethanol over Copper-Plated Raney Nickel: A New Route to Sustainable Hydrogen for Transportation , 2005 .