Development of a methanol fuelled reformer for fuel cell applications
2003 (English)In: Journal of Power Sources, ISSN 0378-7753, Vol. 118, no 02-jan, 71-78 p.Article in journal (Refereed) Published
A compact methanol reformer for fuel cell vehicles (FCVs) has, been developed and successfully tested. The reformer which has been constructed to serve a 5 Me fuel cell operates by combined reforming of methanol (CRM) (a combination of steam reforming and partial oxidation). The exploitable energy surplus in a fuel cell vehicle is low and therefore a combustion system for heating the reformer which utilizes a catalyst for both evaporation and oxidation of liquid methanol was developed. We were able to obtain start-up times in the region of 4-6 min depending on the oxygen-to-methanol ratio (OMR) used for the combined reforming reaction. The main drawback from decreasing the start-up time by increasing the oxygen-to-methanol ratio was that the CO concentrations in the product stream increased. The reforming reaction was performed over copper-based catalysts while the oxidation took place over a mixture of platinum and manganese-based catalysts. The catalysts were characterized using SEM-EDS, BET surface area measurement and X-ray diffraction (XRD).
Place, publisher, year, edition, pages
2003. Vol. 118, no 02-jan, 71-78 p.
methanol, reformer, fuel cell, start-up, steam reforming, catalyst, supported palladium catalysts, selective production, partial oxidation, cuznal(zr)-oxide catalysts, hydrogen, mechanism, cuo/zno, alloys
IdentifiersURN: urn:nbn:se:kth:diva-22549ISI: 000183286600012OAI: oai:DiVA.org:kth-22549DiVA: diva2:341247
QC 201005252010-08-102010-08-10Bibliographically approved