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Modelling of butene‐1 dehydrogenation in a fixed bed reactor — bed and pellet profiles
Author(s) -
Acharya D. R.,
Hughes R.
Publication year - 1990
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450680111
Subject(s) - pellet , dehydrogenation , coke , isothermal process , materials science , butene , packed bed , kinetics , catalysis , thermodynamics , chemical engineering , analytical chemistry (journal) , chemistry , ethylene , composite material , chromatography , metallurgy , organic chemistry , physics , quantum mechanics , engineering
A homogeneous model incorporating the Dumez & Froment kinetics has been proposed for the butene‐1 dehydrogenation reaction over a commercial chromia‐alumina catalyst. The model predicts bed and pellet concentration and temperature profiles. While the temperature profiles obtained suggest a temperature minimum in the reactor, the pellet remains nearly isothermal. Under the condition used in this study, a series type of coke deposition is obtained. A comparison between experimental results obtained using the neutron attenuation technique and theoretical coke profiles reveals excellent agreement and confirms the validity of the model and the kinetics employed.