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Instationäre Prozeßführung kontinuierlicher Reaktoren
Author(s) -
Renken Albert
Publication year - 1982
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.330540606
Subject(s) - steady state (chemistry) , homogeneous , oscillation (cell signaling) , chemical reactor , process (computing) , kinetic energy , flow (mathematics) , control theory (sociology) , chemistry , thermodynamics , chemical reaction , chemical process , continuous reactor , forced oscillation , process engineering , mechanics , computer science , catalysis , physics , engineering , nonlinear system , classical mechanics , biochemistry , control (management) , organic chemistry , quantum mechanics , artificial intelligence , operating system
Non‐steady‐state operation of continuous reactors . The behaviour of continuous chemical reactors can be altered significantly by forced oscillation of the reactor parameters such as feed concentration of the reactants, flow rate, and temperature. In contrast to autonomous oscillations in unstable systems, the forced periodic disturbances are controlled and can be used as a further parameter for process optimization. The dynamic behaviour of individual steps of the overall reaction and of the reactor can be exploited to obtain performances and selectivities which cannot be accomplished in the traditional way on steady‐state operation under comparable conditions. This is shown in discussing some simple kinetic schemes published in theoretical studies and comparing them with experimental results for homogeneous and heterogeneous reactions. The physical and chemical causes for the predicted and observed advantages of periodic operation are discussed.