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On-board reforming of biodiesel and bioethanol for high temperature PEM fuel cells: Comparison of autothermal reforming and steam reforming

Martin, Stefan and Wörner, Antje (2010) On-board reforming of biodiesel and bioethanol for high temperature PEM fuel cells: Comparison of autothermal reforming and steam reforming. Journal of Power Sources, 196 (6), pp. 3163-3171. Elsevier. DOI: 10.1016/j.jpowsour.2010.11.100. ISSN 0378-7753.

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Official URL: http://dx.doi.org/10.1016/j.jpowsour.2010.11.100

Abstract

In the 21st century biofuels will play an important role as alternative fuels in the transportation sector. In this paper different reforming options (steam reforming SR and autothermal reforming ATR) for the on-board conversion of bioethanol and biodiesel into a hydrogen-rich gas suitable for high temperature PEM (HTPEM) fuel cells are investigated using the simulation tool Aspen Plus. Special emphasis is placed on thermal heat integration. Methyl-oleate (C19H36O2) is chosen as reference substance for biodiesel. Bioethanol is represented by ethanol (C2H5OH). For the steam reforming concept with heat integration a maximum fuel processing efficiency of 75.6 % (76.3 %) is obtained for biodiesel (bioethanol) at S/C=3. For the autothermal reforming concept with heat integration a maximum fuel processing efficiency of 74.1 % (75.1 %) is obtained for biodiesel (bioethanol) at S/C=2 and λ=0.36 (0.35). Taking into account the better dynamic behaviour and lower system complexity of the reforming concept based on ATR, autothermal reforming in combination with a water gas shift reactor is considered as the preferred option for on-board reforming of biodiesel and bioethanol. Based on the simulation results optimum operating conditions for a novel 5 kW biofuel processor are derived.

Document Type:Article
Title:On-board reforming of biodiesel and bioethanol for high temperature PEM fuel cells: Comparison of autothermal reforming and steam reforming
Authors:
AuthorsInstitution or Email of Authors
Martin, Stefanstefan.martin@dlr.de
Wörner, AntjeAntje.Woerner@dlr.de
Date:27 November 2010
Journal or Publication Title:Journal of Power Sources
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:196
DOI:10.1016/j.jpowsour.2010.11.100
Page Range:pp. 3163-3171
Editors:
EditorsEmail
Scrosati, Brunobruno.scrosati@uniroma1.it
Publisher:Elsevier
ISSN:0378-7753
Status:Published
Keywords:Hydrogen, On-board fuel processor, Biodiesel, Bioethanol, PEM fuel cell, Reforming
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E EV - Energy process technology (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Thermal Process Technology
Deposited By: Stefan Martin
Deposited On:10 Jan 2011 16:44
Last Modified:12 Dec 2013 21:11

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