Analysis and experimental demonstration of forced periodic operation of an adiabatic stirred tank reactor: Simultaneous modulation of inlet concentration and total flow-rate
Authorized Users Only
2021
Authors
Felischak, Matthias
Lothar, Kaps
Christof, Hamel
Nikolić, Daliborka
Petkovska, Menka

Seidel-Morgenstern, Andreas

Article (Published version)

Elsevier Ltd.
Metadata
Show full item recordAbstract
It is well known, that forced periodic operation possesses the potential for process improvements. Nevertheless, only a small number of applications is reported, due to complex realization, limited predictability and high inertia of larger units. Nonlinear frequency response (NFR) analysis has proven to predict efficiently time-averaged performance of reactor effluent streams originating from forced periodic changes of one or several input(s).
Focus of this paper was an experimental demonstration of forced periodic operation applied to the hydrolysis of acetic anhydride carried out in an adiabatic CSTR. Theoretical results provided a guideline for experiments exploiting simultaneous sinusoidal modulations of the anhydride inlet concentration and the total volumetric flow-rate. Influences of the forcing parameters (amplitudes and the phase difference) were also studied. Confirming the predictions of NFR analysis a significantly higher time-averaged product yields were experimentally ac...hieved compared to conventional steady-state operation with simultaneous modulation of two inputs using an
optimized phase shift.
Keywords:
Dynamic reactor operation / Forced periodic modulation / Nonlinear frequency response analysis / Modulation of two inputs / Acetic anhydride hydrolysisSource:
Chemical Engineering Journal, 2021, 410, 128197Publisher:
- Elsevier
Projects:
- DFG Priority Programme 2080, SPP 2080 Catalyst and reactors under dynamic conditions for energy storage and conversion, Project: Analysis of forced periodic operation of chemical reactors considering methanol synthesis as an example
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)