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An experimental investigation of biodiesel steam reforming

Martin, Stefan and Kraaij, Gerard and Ascher, Torsten and Wails, David and Wörner, Antje (2015) An experimental investigation of biodiesel steam reforming. International Journal of Hydrogen Energy, 40, pp. 95-105. Elsevier. DOI: 10.1016/j.ijhydene.2014.10.143 ISSN 0360-3199

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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2014.10.143

Abstract

Recently, liquid biofuels have attracted increasing attention as renewable feedstock for hydrogen production in the transport sector. Since the lack of hydrogen infrastructure and distribution poses an obstacle for the introduction of fuel cell vehicles to the market, it is reasonable to consider using liquid biofuels for on-board or on-site hydrogen generation. Biodiesel offers the advantage of being an environmentally friendly resource while also having high gravimetric and volumetric energy density. The present study constitutes an experimental investigation of biodiesel steam reforming, the main emphasis of which is placed on finding optimum operating conditions in order to avoid catalyst deactivation. Temperature was varied from 600 °C to 800 °C, pressure from 1 bar to 5 bar and the molar steam-to-carbon ratio from 3 to 5. Based on the experimental results, coke formation and sintering are identified as the main deactivation mechanisms. Initiation of catalyst deactivation primarily depends on catalyst inlet temperature and feed mass flow per open area of catalyst. By using a metallic based precious metal catalyst, applying low feed flow rates (31 g/h∙cm2) and a sufficiently high catalyst inlet temperature (>750 °C) coking can be minimized, thus avoiding catalyst deactivation. A stable product gas composition close to chemical equilibrium has been achieved over 100 h with a biodiesel conversion rate of 99%.

Item URL in elib:https://elib.dlr.de/92903/
Document Type:Article
Title:An experimental investigation of biodiesel steam reforming
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Martin, Stefanstefan.martin (at) dlr.deUNSPECIFIED
Kraaij, Gerardgerard.kraaij (at) dlr.deUNSPECIFIED
Ascher, Torstentorsten.ascher (at) dlr.deUNSPECIFIED
Wails, Davidwailsd (at) matthey.comUNSPECIFIED
Wörner, Antjeantje.woerner (at) dlr.deUNSPECIFIED
Date:January 2015
Journal or Publication Title:International Journal of Hydrogen Energy
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:40
DOI :10.1016/j.ijhydene.2014.10.143
Page Range:pp. 95-105
Publisher:Elsevier
ISSN:0360-3199
Status:Published
Keywords:Wasserstoff, Biodiesel, Dampfreformierung
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC-Antriebsstrang (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Martin, Stefan
Deposited On:08 Dec 2014 11:53
Last Modified:31 Jul 2019 19:49

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