Propagation of Rapid Thermal Waves in a Catalyst Bed Full article
Journal |
Doklady Chemical Technology (After 2000 - Doklady Chemistry)
ISSN: 0012-4990 , E-ISSN: 1573-8957 |
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Output data | Year: 1989, Volume: 307-9, Pages: 114-118 Pages count : 5 | ||
Tags | Flow Of Fluids; Heat Transfer--Packed Beds; Mass Transfer; Mathematical Models | ||
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Abstract:
The development of the technology for carrying out catalytic processes under artificially created unsteady-state conditions required an in-depth analysis of the phenomena related to the propagation of thermal waves in catalyst beds. It will be shown that in addition to the well-known slow thermal waves, rapid thermal waves can propagate in the direction of the gas flow which differ significantly in their qualitative features from the slow waves. The boundary separating the two types of waves in terms of their velocities is a characteristic of the heterogeneous medium represented by the catalyst bed permeated by the flowing gas mixture. As far as the authors are aware, the phenomenon of the propagation of rapid thermal waves has not been discussed before. It is possible only when reversible reactions occur, under conditions of periodic reversal of the feed of the gas mixture. The main properties of the rapid thermal waves can be determined by investigating one of the simplest models of the processes occurring in a catalyst bed in which allowance is made for the effective thermal conductivity of the catalyst bed and the heat transfer between the solid and gaseous phases is assumed to be infinitely intensive, so that the temperature of the solid and gaseous phases do not differ (quasihomogeneous model).
Cite:
Kiselev O.V.
, Matros Y.S.
Propagation of Rapid Thermal Waves in a Catalyst Bed
Doklady Chemical Technology (After 2000 - Doklady Chemistry). 1989. V.307-9. P.114-118. Scopus РИНЦ
Propagation of Rapid Thermal Waves in a Catalyst Bed
Doklady Chemical Technology (After 2000 - Doklady Chemistry). 1989. V.307-9. P.114-118. Scopus РИНЦ
Original:
Киселев О.В.
, Матрос Ю.Ш.
Распространение быстрых тепловых волн по слою катализатора
Доклады Академии наук СССР (до 1991 г.). 1989. Т.308. №3. С.667-671. WOS РИНЦ
Распространение быстрых тепловых волн по слою катализатора
Доклады Академии наук СССР (до 1991 г.). 1989. Т.308. №3. С.667-671. WOS РИНЦ
Dates:
Submitted: | Mar 16, 1989 |
Published print: | Jul 1, 1989 |
Identifiers:
Scopus | 2-s2.0-0024689874 |
Elibrary | 41738520 |
Citing:
DB | Citing |
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Scopus | 1 |