Modeling study of 5 kW(e)-scale autothermal diesel fuel reformer
2011 (English)In: Applied Catalysis A: General, ISSN 0926-860X, E-ISSN 1873-3875, Vol. 404, no 1-2, 129-140 p.Article in journal (Refereed) Published
A model was developed that successfully describes key operating features of a 5 kW(e)-scale autothermal diesel fuel reformer with an engineered monolith-supported Rh based catalyst. The model consisted of a kinetic model comprised of four overall reactions including total oxidation, fuel steam reforming, methane formation via fuel decomposition and the water-gas shift reaction. The model also accounted for heat and mass transport effects that were of importance when coupling the exothermic oxidation reactions with endothermic steam reforming reactions in a full-scale reformer. According to the model, the total oxidation and steam reforming reactions occurred simultaneously, however the heat effects of the oxidation reaction dominated near the reactor inlet resulting in a local hot spot. Transport resistances were found to hinder the rates of the main reactions, especially at higher temperature operating conditions. The model was primarily based on experimental data for a commercial low-sulphur diesel fuel (MK1), however it was found to also reasonably well describe the operation of the reactor with a diesel surrogate (n-tetradecane).
Place, publisher, year, edition, pages
2011. Vol. 404, no 1-2, 129-140 p.
Autothermal reforming, Diesel reforming, Modeling, Fuel processor, Rh catalyst
IdentifiersURN: urn:nbn:se:kth:diva-43429DOI: 10.1016/j.apcata.2011.07.023ISI: 000295243500017ScopusID: 2-s2.0-80052023114OAI: oai:DiVA.org:kth-43429DiVA: diva2:448423
QC 201110172011-10-172011-10-172011-10-17Bibliographically approved