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Modeling study of 5 kWe-scale autothermal diesel fuel reformer

Derek Creaser (Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik) ; Karatzas Xanthias ; Björn Lundberg (Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik) ; Lars Pettersson ; Jazaer Dawody
Applied Catalysis A: General (0926-860X). Vol. 404 (2011), p. 129-140.
[Artikel, refereegranskad vetenskaplig]

A model was developed that successfully describes key operating features of a 5 kWe-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).

Nyckelord: Autothermal reforming, Diesel reforming, Modeling, Fuel processor, Rh catalyst



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Denna post skapades 2011-08-19. Senast ändrad 2015-03-30.
CPL Pubid: 144634

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Kemisk reaktionsteknik (2005-2014)

Ämnesområden

Transport
Hållbar utveckling
Kemisk energiteknik
Katalys
Molekylära transportprocesser i kemisk processteknik

Chalmers infrastruktur