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Progress in fuel processing for PEMFC systems for transport applications

Abstract

Wellman CJB Limited has been developing fuel processors for PEMFC systems for transport applications using a range of feedstocks. Feedstocks that can be processed to produce a hydrogen-rich gas stream suitable for use with a PEMFC include methanol, gasoline, diesel, LPG, dimethylether, marine diesel and aviation fuel. The basic fuel processor is a steam reformer combined with a selective carbon monoxide oxidation stage. Depending on the nature of the liquid feedstock, other process steps will be required such as vaporizer, desulfurizer, pre-reformer and high and low temperature shift reactors. Work on methanol reforming has been specifically targeted at a PEMFC driven passenger car as part of a multinational European Community JOULE programme called MERCATOX. The objective is to develop and test a compact and fast response methanol reformer and gas clean-up unit to meet a car manufacturer's specification. The method of construction is to coat a methanol reforming catalyst onto one side of a metal corrugated plate. On the other side is a coated combustion catalyst which burns fuel cell off-gas to provide the endothermic heat for the methanol reforming reaction. A number of these plates are assembled in a compact unit ensuring good heat transfer. The gas clean-up unit  More>>
Publication Date:
Jul 01, 1998
Product Type:
Conference
Reference Number:
EDB-00:002742
Resource Relation:
Conference: 33rd Intersociety Energy Conversion Engineering Conference, Colorado Springs, CO (US), 08/02/1998--08/06/1998; Other Information: 1 CD-ROM. Operating system required: Windows 3.x; Windows 95/NT; Macintosh; UNIX. All systems need 2X CD-ROM drive.; PBD: 1998; Related Information: In: Proceedings of the 33. intersociety energy conversion engineering conference, by Anghaie, S. [ed.], [2800] pages.
Subject:
30 DIRECT ENERGY CONVERSION; 08 HYDROGEN; 33 ADVANCED PROPULSION SYSTEMS; PROTON EXCHANGE MEMBRANE FUEL CELLS; HYDROGEN GENERATORS; HYDROGEN PRODUCTION; METHANOL; GASOLINE; DIESEL FUELS; LIQUEFIED PETROLEUM GASES; ETHERS; JET ENGINE FUELS; STEAM REFORMER PROCESSES; CATALYSTS; ELECTRIC-POWERED VEHICLES
OSTI ID:
20002742
Research Organizations:
Wellman CJB Ltd., Portsmouth Hampshire (GB)
Country of Origin:
United States
Language:
English
Other Identifying Numbers:
Other: ISBN 0-89448-639-X; TRN: IM200002%%742
Availability:
American Nuclear Society, ANS Publications Department, 555 N. Kensington Avenue, LaGrange Park, IL 60526 (US); ANS Order No. 700262
Submitting Site:
DELTA
Size:
6 pages, Paper IECEC.98.236
Announcement Date:
Feb 01, 2000

Citation Formats

Dams, A J, Hayter, P R, and Moore, S C. Progress in fuel processing for PEMFC systems for transport applications. United States: N. p., 1998. Web.
Dams, A J, Hayter, P R, & Moore, S C. Progress in fuel processing for PEMFC systems for transport applications. United States.
Dams, A J, Hayter, P R, and Moore, S C. 1998. "Progress in fuel processing for PEMFC systems for transport applications." United States.
@misc{etde_20002742,
title = {Progress in fuel processing for PEMFC systems for transport applications}
author = {Dams, A J, Hayter, P R, and Moore, S C}
abstractNote = {Wellman CJB Limited has been developing fuel processors for PEMFC systems for transport applications using a range of feedstocks. Feedstocks that can be processed to produce a hydrogen-rich gas stream suitable for use with a PEMFC include methanol, gasoline, diesel, LPG, dimethylether, marine diesel and aviation fuel. The basic fuel processor is a steam reformer combined with a selective carbon monoxide oxidation stage. Depending on the nature of the liquid feedstock, other process steps will be required such as vaporizer, desulfurizer, pre-reformer and high and low temperature shift reactors. Work on methanol reforming has been specifically targeted at a PEMFC driven passenger car as part of a multinational European Community JOULE programme called MERCATOX. The objective is to develop and test a compact and fast response methanol reformer and gas clean-up unit to meet a car manufacturer's specification. The method of construction is to coat a methanol reforming catalyst onto one side of a metal corrugated plate. On the other side is a coated combustion catalyst which burns fuel cell off-gas to provide the endothermic heat for the methanol reforming reaction. A number of these plates are assembled in a compact unit ensuring good heat transfer. The gas clean-up unit is similarly constructed with a selective oxidation catalyst on one side and a thermal fluid on the other. Initial tests have indicated a superior performance to conventional packed bed reformers in terms of response and start-up time. Steam reforming of gasoline, diesel, LPG, dimethylether, marine diesel and aviation fuel has been demonstrated on a bench scale (0.5kW). The process steps commence with vaporization (except for LPG), desulfurization (except for dimethylether), prereforming, reforming, low and high temperature shift and selective oxidation. A simple technology demonstrator has shown that a hydrogen-rich mixture (75% hydrogen, 25% carbon dioxide) with less than 2ppm carbon monoxide can be produced consistently. Fifty hours operation was demonstrated with each feedstock. The only potential problem was when using marine diesel (0.5% sulfur) as the feedstock, the desulfurizer performance fluctuated. As an option to a carbon monoxide selective oxidation system, the separation of hydrogen using a thin film silver/palladium membrane coated onto a ceramic substrate is being investigated as part of a European Community JOULE programme. The device is targeted for use with a methanol reformer in a PEMFC vehicle and hence the developed device has to meet a car manufacturer's specification in terms of performance and cost. Coating techniques being investigated include magnetron sputtering, chemical vapor deposition, electroless plating, laser deposition and pore plugging.}
place = {United States}
year = {1998}
month = {Jul}
}