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Modelling of catalyst pellet poisoning for benzene hydrogenation
Author(s) -
Rušić Davor,
Zrnčević Stanka
Publication year - 1993
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280570304
Subject(s) - pellet , catalysis , benzene , diffusion , kinetics , materials science , catalyst poisoning , chemical kinetics , chemical engineering , atmospheric pressure , chemistry , thermodynamics , analytical chemistry (journal) , chromatography , organic chemistry , composite material , catalyst support , meteorology , physics , quantum mechanics , engineering
Based on the kinetics of benzene hydrogenation, pore diffusion and catalyst deactivation, time‐dependent effectiveness behaviour of a single NiSiO 2 Al 2 O 3 catalyst pellet where the chemical reaction rate is determined by pore diffusion was simulated for different conditions of operation. Poisoning kinetics were measured in a series of differential reactor experiments at atmospheric total pressure at temperatures ranging from 403 to 473 K. A computed effectiveness factor has been compared with experimental values for a catalyst pellet of industrial size. A good degree of correlation between theoretical prediction and the experimental results was found.