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 |
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| Journal |
Industrial and Engineering Chemistry Research
ISSN: 0888-5885 , E-ISSN: 1520-5045 |
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| Output data | Year: 2005, Volume: 44, Number: 25, Pages: 9712-9717 Pages count : 6 DOI: 10.1021/ie050269x | ||
| Tags | EXOTHERMIC REACTION; VAPORIZATION | ||
| Authors |
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| Affiliations |
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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
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 |