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Dynamic operation of butadiene dimerization reactor undergoing catalyst deactivation
Author(s) -
Dixit Ravi S.,
Grant Nancy
Publication year - 1996
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.5450740515
Subject(s) - yield (engineering) , catalysis , process (computing) , sensitivity (control systems) , process engineering , kinetics , space velocity , flow (mathematics) , 1,3 butadiene , scale (ratio) , temperature control , chemistry , control theory (sociology) , materials science , chemical engineering , environmental science , computer science , thermodynamics , control (management) , mechanics , engineering , organic chemistry , physics , composite material , electronic engineering , artificial intelligence , operating system , quantum mechanics , selectivity
Operation of fixed‐bed catalytic reactors undergoing catalyst deactivation has been investigated as an optimal control problem to yield optimal temperature policies. An efficient numerical scheme using a control vector iteration method based on gradients in functional space is developed. The procedure is applied to develop optimal temperature profiles for a butadiene dimerization process. The temperature‐time trajectories and dynamic activity profiles are strongly influenced by kinetics. A sensitivity analysis is done to study the effect of flow rates, conversion level and parameters that influence kinetic and deactivation processes. These results have been validated with experimentation on a lab scale reactor and a 9.14 m pilot‐plant reactor.