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Entwicklung eines Simulationsprogramms zum Scale‐up von Hydrierreaktoren
Author(s) -
Greger Manfred,
Gutsche Bernhard,
Jeromin Lutz
Publication year - 1992
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330640307
Subject(s) - mass transfer , trickle bed reactor , catalysis , dimensioning , scale (ratio) , scale up , chemistry , mass transfer coefficient , chemical engineering , thermodynamics , materials science , chromatography , engineering , organic chemistry , physics , quantum mechanics , classical mechanics , aerospace engineering
Development of a simulation program for the scale‐up of hydrogenation reactors. The scale‐up of trickle‐bed reactors to pilot and production scale has been difficult and necessitated considerable over‐dimensioning. Therefore a simulation program based on a cell model has been developed in which the dimensions of a cell are directly related to the dimensions of the catalyst particles used. The kinetic equation is formulated with an effective rate coefficient as the only key parameter to be adjusted. With this coefficient the intrinsic rate coefficient, the mass transfer, and the incomplete catalyst particle wetting are considered. The model was applied to the hardening of fatty acids and the hydrogenation of fatty acid methyl esters in laboratory reactors. Comparison with experimental results of pilot and industrial scale is favourable. Thus the model can be used for the scale‐up of trickle‐bed reactors.