Forced thermal cycling of catalytic reactions: experiments and modelling

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

doi:10.1016/j.catcom.2007.03.026

Forced thermal cycling of catalytic reactions: experiments and modelling

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

Research output: Contribution to journal › Journal article › Research › peer-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 language	English
Journal	Catalysis Communications
Volume	8
Pages (from-to)	1985-1990
ISSN	1566-7367
DOIs	https://doi.org/10.1016/j.catcom.2007.03.026
Publication status	Published - 2007

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title = "Forced thermal cycling of catalytic reactions: experiments and modelling",

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.",

author = "S{\o}ren Jensen and Olsen, {Jakob Lind} and Sune Thorsteinsson and Ole Hansen and Ulrich Quaade",

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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

SN - 1566-7367

VL - 8

SP - 1985

EP - 1990

JO - Catalysis Communications

JF - Catalysis Communications

ER -

Forced thermal cycling of catalytic reactions: experiments and modelling

Abstract

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