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Kinetic Modeling of Autothermal Reforming of Dimethyl Ether
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology.
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology.
2010 (English)In: Industrial & Engineering Chemistry Research, ISSN 0888-5885, E-ISSN 1520-5045, Vol. 49, no 20, 9712-9719 p.Article in journal (Refereed) Published
Abstract [en]

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. On the basis of the model, the influence of the reactor scale and oxygen supply by air feed on the performance of the reactor was examined.

Place, publisher, year, edition, pages
2010. Vol. 49, no 20, 9712-9719 p.
Identifiers
URN: urn:nbn:se:kth:diva-26306DOI: 10.1021/ie100834vISI: 000282727300017Scopus ID: 2-s2.0-77957994878OAI: oai:DiVA.org:kth-26306DiVA: diva2:371554
Available from: 2010-11-21 Created: 2010-11-21 Last updated: 2017-12-12Bibliographically approved

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Nilsson, MaritaPettersson, Lars J.
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