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PARTIAL INTERNAL WETTING OF CATALYST PARTICLES - HYSTERESIS EFFECTS

DSpace at IIT Bombay

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Field Value
 
Title PARTIAL INTERNAL WETTING OF CATALYST PARTICLES - HYSTERESIS EFFECTS
 
Creator JAGUSTE, DN
BHATIA, SK
 
Subject trickle-bed reactor
partially wetted catalysts
multiple steady-states
supported platinum
phase-transition
porous catalyst
hydrogenation
performance
cyclohexene
percolation
 
Description Condensation-evaporation hysteresis associated with the internal wetting of catalyst particles is examined here by the Kelvin and Cohan equations. It is shown that in the absence of information on the thermal history, it is difficult to predict the extent of internal wetting and the associated reaction rate, for states with partial internal wetting, with the actual rate lying anywhere between the limits specified by the Kelvin and Cohan equations. Hysteresis effects arising from thermal cycling are discussed, and the predictions are shown to agree with the experimental data of Kim and Kim (1981a). Experimentally observed transitions between states with markedly different extents of internal wetting and with associated sudden evaporation or condensation are also rationalized by the theory.
 
Publisher AMER INST CHEMICAL ENGINEERS
 
Date 2011-07-15T11:43:23Z
2011-12-26T12:49:28Z
2011-12-27T05:52:00Z
2011-07-15T11:43:23Z
2011-12-26T12:49:28Z
2011-12-27T05:52:00Z
1991
 
Type Article
 
Identifier AICHE JOURNAL, 37(5), 650-660
0001-1541
http://dx.doi.org/10.1002/aic.690370503
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4263
http://hdl.handle.net/10054/4263
 
Language en