Axial and transversal patterns during CO oxidation in fixed beds

Olga Nekhamkina; Moshe Sheintuch

doi:10.1016/j.ces.2006.12.046

Axial and transversal patterns during CO oxidation in fixed beds

Olga Nekhamkina, Moshe Sheintuch^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

This work analyses the possible axial- and transversal thermal spatio-temporal patterns that may emerge in a two-dimensional thin annular catalytic bed model using a detailed micro-kinetic model for CO oxidation. This work is motivated by experimental IR-imaging observations made with a cylindrical catalytic surface impregnated with Pd. Stationary, oscillating- and travelling axial-pulses are shown to emerge, in agreement with the experimentally observed axial patterns, and simulations, backed by linear analysis, show that transversal patterns may emerge as well. The implications for fixed-bed reactor modelling are discussed.

Original language	English
Pages (from-to)	4948-4953
Number of pages	6
Journal	Chemical Engineering Science
Volume	62
Issue number	18-20
DOIs	https://doi.org/10.1016/j.ces.2006.12.046
State	Published - Sep 2007
Externally published	Yes

Keywords

Catalysis
Mathematical modelling
Nonlinear dynamics
Packed bed
Reaction engineering

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10.1016/j.ces.2006.12.046

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title = "Axial and transversal patterns during CO oxidation in fixed beds",

abstract = "This work analyses the possible axial- and transversal thermal spatio-temporal patterns that may emerge in a two-dimensional thin annular catalytic bed model using a detailed micro-kinetic model for CO oxidation. This work is motivated by experimental IR-imaging observations made with a cylindrical catalytic surface impregnated with Pd. Stationary, oscillating- and travelling axial-pulses are shown to emerge, in agreement with the experimentally observed axial patterns, and simulations, backed by linear analysis, show that transversal patterns may emerge as well. The implications for fixed-bed reactor modelling are discussed.",

keywords = "Catalysis, Mathematical modelling, Nonlinear dynamics, Packed bed, Reaction engineering",

author = "Olga Nekhamkina and Moshe Sheintuch",

note = "Funding Information: Work supported by the US-Israel Binational Science Foundation. M.S. is a member of the Minerva Center of Nonlinear Dynamics and Complex Systems.",

year = "2007",

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T1 - Axial and transversal patterns during CO oxidation in fixed beds

AU - Nekhamkina, Olga

AU - Sheintuch, Moshe

N1 - Funding Information: Work supported by the US-Israel Binational Science Foundation. M.S. is a member of the Minerva Center of Nonlinear Dynamics and Complex Systems.

PY - 2007/9

Y1 - 2007/9

N2 - This work analyses the possible axial- and transversal thermal spatio-temporal patterns that may emerge in a two-dimensional thin annular catalytic bed model using a detailed micro-kinetic model for CO oxidation. This work is motivated by experimental IR-imaging observations made with a cylindrical catalytic surface impregnated with Pd. Stationary, oscillating- and travelling axial-pulses are shown to emerge, in agreement with the experimentally observed axial patterns, and simulations, backed by linear analysis, show that transversal patterns may emerge as well. The implications for fixed-bed reactor modelling are discussed.

AB - This work analyses the possible axial- and transversal thermal spatio-temporal patterns that may emerge in a two-dimensional thin annular catalytic bed model using a detailed micro-kinetic model for CO oxidation. This work is motivated by experimental IR-imaging observations made with a cylindrical catalytic surface impregnated with Pd. Stationary, oscillating- and travelling axial-pulses are shown to emerge, in agreement with the experimentally observed axial patterns, and simulations, backed by linear analysis, show that transversal patterns may emerge as well. The implications for fixed-bed reactor modelling are discussed.

KW - Catalysis

KW - Mathematical modelling

KW - Nonlinear dynamics

KW - Packed bed

KW - Reaction engineering

UR - http://www.scopus.com/inward/record.url?scp=34547943647&partnerID=8YFLogxK

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DO - 10.1016/j.ces.2006.12.046

M3 - 文章

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SN - 0009-2509

VL - 62

SP - 4948

EP - 4953

JO - Chemical Engineering Science

JF - Chemical Engineering Science

IS - 18-20

ER -

Axial and transversal patterns during CO oxidation in fixed beds

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Keywords

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