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

Abstract

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
Volume8
Pages (from-to)1985-1990
ISSN1566-7367
DOIs
Publication statusPublished - 2007

Cite this

Jensen, Søren ; Olsen, Jakob Lind ; Thorsteinsson, Sune ; Hansen, Ole ; Quaade, Ulrich. / Forced thermal cycling of catalytic reactions: experiments and modelling. In: Catalysis Communications. 2007 ; Vol. 8. pp. 1985-1990.
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Forced thermal cycling of catalytic reactions: experiments and modelling. / Jensen, Søren; Olsen, Jakob Lind; Thorsteinsson, Sune; Hansen, Ole; Quaade, Ulrich.

In: Catalysis Communications, Vol. 8, 2007, p. 1985-1990.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Forced thermal cycling of catalytic reactions: experiments and modelling

AU - Jensen, Søren

AU - Olsen, Jakob Lind

AU - Thorsteinsson, Sune

AU - Hansen, Ole

AU - Quaade, Ulrich

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

U2 - 10.1016/j.catcom.2007.03.026

DO - 10.1016/j.catcom.2007.03.026

M3 - Journal article

VL - 8

SP - 1985

EP - 1990

JO - Catalysis Communications

JF - Catalysis Communications

SN - 1566-7367

ER -