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Hydrogen generation from dimethyl ether for fuel cell auxiliary power units
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology.
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Technology.
2006 (English)In: Energy & Fuels, ISSN 0887-0624, E-ISSN 1520-5029, Vol. 20, no 5, 2164-2169 p.Article in journal (Refereed) Published
Abstract [en]

Copper-based catalysts have been evaluated for the combined partial oxidation and steam reforming of dimethyl ether (DME) in a reformer designed to produce hydrogen for a full-scale heavy-duty truck auxiliary power unit. The experiments were conducted using gas mixtures similar to realistic operating conditions. A Pd-promoted CuZn catalyst was found to be highly selective for hydrogen production from DME at O-2/DME = 0.25 and H2O/ DME = 2.5. The catalysts were characterized using Brunauer-Emmett-Teller surface area measurement, X-ray diffraction, and temperature-programmed reduction. The copper surface area was determined by pulse chemisorption of nitrous oxide. In addition to the reforming catalyst evaluation, a startup sequence was tested, where DME was catalytically ignited and combusted over platinum or iron oxide catalysts.

Place, publisher, year, edition, pages
2006. Vol. 20, no 5, 2164-2169 p.
Keyword [en]
copper surface-area, partial oxidation, methanol, catalysts, decomposition, dme, hydrolysis, pd/zno, oxide
National Category
Chemical Engineering
URN: urn:nbn:se:kth:diva-15999DOI: 10.1021/ef050419gISI: 000240615500060ScopusID: 2-s2.0-33749638749OAI: diva2:334041
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2010-11-15Bibliographically approved

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