A cost effective steam reformer for a distributed hydrogen infrastructure

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Abstract

In this paper the design and demonstration of a 7 nm(3) h(-1) integrated steam reforming based hydrogen production unit using a Fischer-Tropsch diesel is reported. The system design is discussed in detail, including the fuel processor itself as well as the hydrogen purification and results from stand-alone operation of the combined unit operations is reported. Further, the results of an integration of the fuel processor and a system consisting of 4kWe fuel cells, 30kWe photovoltaic installation and hydrogen storage are described. Finally, a discussion on the advantages of a hydrogen based integrated system versus a load-following system is pointed out. The operation of the fuel-processing unit showed a lower heating value based system efficiency of about 58%, including parasitic power consumption, with hydrogen produced containing less than 1 ppm CO. Fuel conversion was about 90%, and the parasitic power consumption was low enough to be considered acceptable. When integrated with the fuel cells the operation indicates that the hydrogen quality is good enough for long-term operation. (C) 2008 international Association. for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Chemical Engineering

Keywords

  • hybridization, fuel, cell, system integration, steam reforming, hydrogen production, diesel
Original languageEnglish
Pages (from-to)1266-1274
JournalInternational Journal of Hydrogen Energy
Volume33
Issue number4
Publication statusPublished - 2008
Publication categoryResearch
Peer-reviewedYes