Kinetic modeling of autothermal reforming of dimethyl ether
Journal article, 2010

A global kinetic model was developed for the autothermal reforming of dimethyl ether (DME) over a Pd-Zn/Al2O3 catalyst on a cordierite monolith. A kinetic model consisting of five key overall reactions was found to capture the main features of experimental data. The modeling also accounted for heat transport effects in the reactor that are of importance when coupling the exothermic oxidation reactions with endothermic steam reforming reactions. The modeling confirmed that oxidation reactions dominate near the inlet of the reactor, generating a local hot spot. The heat from oxidation reactions accelerates the reforming reactions. Water adsorption was found to have a weak detrimental influence on the activity. Based on the model, the influence of the reactor scale and oxygen supply by air feed on the performance of the reactor was examined.

hydrogen

Autothermal reforming

kinetic modeling

Dimethyl ether

Author

Derek Creaser

Chalmers, Chemical and Biological Engineering, Chemical Reaction Engineering

Marita Nilsson

Royal Institute of Technology (KTH)

Lars Pettersson

Royal Institute of Technology (KTH)

JAZAER DAWODY

Powercell

Industrial & Engineering Chemistry Research

0888-5885 (ISSN) 1520-5045 (eISSN)

Vol. 49 20 9712-9719

Subject Categories

Chemical Process Engineering

DOI

10.1021/ie100834v

More information

Latest update

4/24/2018