A high-efficiency, auto-thermal system for on-board hydrogen production for low temperature PEM fuel cells using dual reforming of ethanol

Abstract On-board reforming of liquid fuels is essential for improved driving range of fuel cell-powered vehicles. There is increasing demand for such vehicles to be fuelled from renewable energy sources. In the present paper, we propose an efficient reformer system for hydrogen production from ethanol. Reforming is an endothermic process, and high temperatures, well above the operating temperatures of PEM or equivalent fuel cells, are required for sufficient catalytic activity for reforming reactions. We use Co-Fe/ZnO catalyst to carry out the reforming at around 500 °C and a combustor of excess fuel as well as directly-fed ethanol to generate the high temperatures required for reforming. It is shown through simulations that introducing a second reformer to extract more hydrogen from the methane obtained from the first reformer improves the overall efficiency. ASPEN-based simulations show that the overall efficiency of an optimized dual reformer system can be as high as 48.47%.

[1]  Abdellatif Miraoui,et al.  Methanol fuel processor and PEM fuel cell modeling for mobile application , 2010 .

[2]  Alírio E. Rodrigues,et al.  Insight into steam reforming of ethanol to produce hydrogen for fuel cells , 2006 .

[3]  Silvio Carlos Anibal de Almeida,et al.  Performance analysis of a 5 kW PEMFC with a natural gas reformer , 2010 .

[4]  Suthida Authayanun,et al.  Maximizing the Efficiency of a HT-PEMFC System Integrated with Glycerol Reformer , 2012 .

[5]  J. Llorca,et al.  Ethanol steam reforming and water gas shift over Co/ZnO catalytic honeycombs doped with Fe, Ni, Cu, Cr and Na , 2010 .

[6]  Yi Shen,et al.  Synthesis of Ni and Ni–Cu supported on carbon nanotubes for hydrogen and carbon production by catalytic decomposition of methane , 2015 .

[7]  Johannes Schmitz,et al.  Steam reforming of natural gas with intergrated hydrogen separation for hydrogen production , 1987 .

[8]  Jong-Woo Ahn,et al.  Development and demonstration of PEM fuel-cell-battery hybrid system for propulsion of tourist boat , 2016 .

[9]  Søren Knudsen Kær,et al.  Modeling and off-design performance of a 1kWe HT-PEMFC (high temperature-proton exchange membrane fuel cell)-based residential micro-CHP (combined-heat-and-power) system for Danish single-family households , 2011 .

[10]  L. Barelli,et al.  SE-SR with sorbents based on calcium aluminates: process optimization , 2015 .

[11]  Sreenivas Jayanti,et al.  A conceptual model of a high-efficiency, stand-alone power unit based on a fuel cell stack with an integrated auto-thermal ethanol reformer , 2013 .

[12]  Yongdan Li,et al.  Thermodynamic Analysis of Hydrogen Production from Oxidative Steam Reforming of Ethanol , 2008 .

[13]  Ya-Xiong Wang,et al.  Modeling and experimental validation of hybrid proton exchange membrane fuel cell/battery system for power management control , 2015 .

[14]  Angelina F. Ambrose,et al.  Hydrogen fuel and transport system: A sustainable and environmental future , 2016 .

[15]  Said S.E.H. Elnashaie,et al.  A fluidized bed membrane reactor for the steam reforming of methane , 1991 .

[16]  Oliver Ehret,et al.  Hydrogen as a fuel and energy storage: Success factors for the German Energiewende , 2015 .

[17]  Y. Lee,et al.  Conceptual design and simulation study for the production of hydrogen in coal gasification system , 2010 .

[18]  Claude Mirodatos,et al.  Ethanol reforming for hydrogen production in a hybrid electric vehicle: process optimisation , 2002 .

[19]  R. Rabelo-Neto,et al.  Hydrogen production by reforming of acetic acid using La–Ni type perovskites partially substituted with Sm and Pr , 2015 .

[20]  Alain Le Duigou,et al.  On the comparison and the complementarity of batteries and fuel cells for electric driving , 2014 .

[21]  S. Kolaczkowski,et al.  Evaluation of thermodynamically favourable operating conditions for production of hydrogen in three different reforming technologies , 2002 .

[22]  G. G Harding.  Electric vehicles in the next millennium , 1999 .

[23]  Amornchai Arpornwichanop,et al.  Thermodynamic analysis of solid oxide fuel cell system using different ethanol reforming processes , 2015 .

[24]  Naehyuck Chang,et al.  Fuel economy analysis of fuel cell and supercapacitor hybrid systems , 2016 .

[25]  Suthida Authayanun,et al.  Enhancement of dilute bio-ethanol steam reforming for a proton exchange membrane fuel cell system by using methane as co-reactant: Performance and life cycle assessment , 2015 .

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

[27]  Hankwon Lim,et al.  Catalytic activity and characterizations of Ni/K2TixOy–Al2O3 catalyst for steam methane reforming , 2014 .

[28]  N. S. Suresh,et al.  Cross-over and performance modeling of liquid-feed Polymer Electrolyte Membrane Direct Ethanol Fuel , 2011 .

[29]  Xinli Zhu,et al.  Carbon formation and steam reforming of methane on silica supported nickel catalysts , 2012 .

[30]  J. Kano,et al.  High-purity hydrogen gas production by catalytic thermal decomposition using mechanochemical treatment , 2014 .

[31]  J. Torres,et al.  Steam reforming of ethanol at moderate temperature: Multifactorial design analysis of Ni/La2O3-Al2O3, and Fe- and Mn-promoted Co/ZnO catalysts , 2007 .

[32]  I. Park,et al.  Corrosion characteristics of aluminum alloy in bio-ethanol blended gasoline fuel: Part 2. The effects of dissolved oxygen in the fuel , 2011 .

[33]  K. Jun,et al.  Highly active and stable Ni/Ce-ZrO2 catalyst for H2 production from methane , 2002 .

[34]  M. Sheintuch,et al.  On-site pure hydrogen production by methane steam reforming in high flux membrane reactor: Experimental validation, model predictions and membrane inhibition , 2015 .

[35]  Jens R. Rostrup-Nielsen,et al.  Steam reforming of liquid hydrocarbons , 1998 .

[36]  Z. Qi,et al.  Effect of CO in the anode fuel on the performance of PEM fuel cell cathode , 2002 .

[37]  A. J. Appleby,et al.  Effect of current pulsing and “self-oxidation” on the CO tolerance of a PEM fuel cell , 2004 .

[38]  J. Chung,et al.  Experimental study on the performance of hydrogen production from miniature methanol–steam reformer integrated with Swiss-roll type combustor for PEMFC , 2013 .