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Self-Oscillation Liquid Front inside a Partially Wetted Catalyst Pellet under α-Methylstyrene Hydrogenation: Experiment and Theory Full article

Conference 5th International Symposium on Catalysis in Multiphase Reactors & 4th International Symposium on Multifunctional Reactors
15-18 Jun 2005 , Portoroz-Portorose
Journal Industrial and Engineering Chemistry Research
ISSN: 0888-5885 , E-ISSN: 1520-5045
Output data Year: 2005, Volume: 44, Number: 25, Pages: 9712-9717 Pages count : 6 DOI: 10.1021/ie050269x
Tags EXOTHERMIC REACTION; VAPORIZATION
Authors Shigarov Alexey B. 1 , Kulikov Alexander V. 1 , Kirillov Valery A. 1
Affiliations
1 Boreskov Institute of Catalysis, Pr. Acad. Lavrentiev 5, Novosibirsk 630090, Russia

Funding (1)

1 Netherlands Organisation for Scientific Research 047.014.004

Abstract: Self-oscillations on a partially wetted cylindrical catalyst pellet 1% Pd/γ-Al2O3 in α-methylstyrene (AMS) hydrogenation accompanied by liquid evaporation are studied. By NMR tomography (magnetic resonance microimaging), images of the liquid-phase distribution within the porous pellet are obtained and the liquid-phase redistribution is monitored immediately during the process. The physical mechanism and simplified one-dimensional model are suggested to explain the observed phenomenon. The model predicts well the experimental period (2−3 min) and the amplitudes of the temperature oscillations at the lower (dry) part of the pellet and also the liquid front oscillations at the upper part. The instability mechanism (negative feedback with time lag) is based on complex interaction among the processes of imbibition, evaporation, and gas-phase hydrogenation.
Cite: Shigarov A.B. , Kulikov A.V. , Kirillov V.A.
Self-Oscillation Liquid Front inside a Partially Wetted Catalyst Pellet under α-Methylstyrene Hydrogenation: Experiment and Theory
Industrial and Engineering Chemistry Research. 2005. V.44. N25. P.9712-9717. DOI: 10.1021/ie050269x WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Feb 28, 2005
Accepted: May 2, 2005
Published online: May 26, 2005
Published print: Dec 1, 2005
Identifiers:
Web of science: WOS:000233685400048
Scopus: 2-s2.0-29444461595
Elibrary: 13478862
Chemical Abstracts: 2005:443833
Chemical Abstracts (print): 143:407363
OpenAlex: W1986866796
Citing:
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Web of science 1
Scopus 1
Elibrary 1
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