Forced thermal cycling of catalytic reactions: experiments and modelling

Søren Jensen, Jakob Lind Olsen, Sune Thorsteinsson, Ole Hansen, Ulrich Quaade

Research output: Contribution to journalJournal articleResearchpeer-review


Recent studies of catalytic reactions subjected to fast forced temperature oscillations have revealed a rate enhancement increasing with temperature oscillation frequency. We present detailed studies of the rate enhancement up to frequencies of 2.5 Hz. A maximum in the rate enhancement is observed at about 1 Hz. A model for the rate enhancement that includes the surface kinetics and the dynamic partial pressure variations in the reactor is introduced. The model predicts a levelling off of the rate enhancement with frequency at about 1 Hz. The experimentally observed decrease above 1 Hz is explained by dynamic thermal limitations of the reactor. (c) 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
JournalCatalysis Communications
Pages (from-to)1985-1990
Publication statusPublished - 2007


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