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Transfer Functions for Periodic Reactor Operation: Fundamental Methodology for Simple Reaction Networks

Abstract

The contribution presents a method for frequency response analysis of chemical reactors with periodically modulated inlet concentration. The method is demonstrated for simple first‐order irreversible consecutive and parallel as well as reversible reactions applying an isothermal continuous stirred tank reactor (CSTR). The frequency response of these reaction types is studied by simulations in time and frequency domain, being the latter based on Laplace transformation of the material balance. The results allow to clearly distinguish between the quasi and relaxed steady‐state as well as the full transient region with impact on designing reactors for dynamic operation. Furthermore, the relation between the dynamic response and the time constants of the system is discussed.

Authors:   Dominik Meyer, Jens Friedland, Thiemo Kohn, Robert Güttel
Journal:   Chemical Engineering & Technology
Year:   2017
Pages:   n/a
DOI:   10.1002/ceat.201700122
Publication date:   17-Aug-2017
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