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Effectiveness and deactivation of a diluted catalyst pellet
Author(s) -
Varghese Philip,
Wolf Eduardo E.
Publication year - 1980
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690260110
Subject(s) - pellet , inert , catalysis , chemical engineering , offset (computer science) , catalyst poisoning , diffusion , materials science , chemistry , waste management , catalyst support , composite material , thermodynamics , organic chemistry , computer science , engineering , physics , programming language
In this article, we analyze the performance of a dluted catalyst pellet consisting of inert and active particles under diffusion influenced conditions and pore‐mouth poisoning. First, we establish the requirements for validty of the analytical soltuions of the diluted pellet equations. Secondly, we show that, under pore‐mouth poisoning conditions, a diluted pellet can display considerably longer lifetimes than a uniformly impregnated catalyst. Conversely, for the same lifetime, use of a diluted pellet can result in savings of the catalytic agent. These advantages are not offset by difficulties in catalyst manufacture, as is the case for previous designs.