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ID: 437608.0, MPI für Dynamik komplexer technischer Systeme / Physical and Chemical Foundations of Process Engineering
Autothermal operation of an adiabatic simulated counter current reactor
Authors:Zahn, V. M.; Mangold, M.; Seidel-Morgenstern, A.
Date of Publication (YYYY-MM-DD):2010
Title of Journal:Chemical Engineering Science
Issue / Number:1 - Special Issue : 20th International Symposium in Chemical Reaction Engineering—Green Chemical Reaction Engineering for a Sustainable Future
Start Page:458
End Page:465
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Periodic operation of several adiabatic fixed beds connected in series is an alternative to conventional steady-state fixed-bed operation or transient reverse flow reactor operation, e.g. to process lean waste gases or to perform efficiently slightly exothermic equilibrium limited reactions. This work explains the periodic operation of a multi-bed reactor network using both a simplified model assuming a true counter current of the phases involved and a more detailed dynamic model. An appropriate expression for relating the switching times and solid phase velocities is applied. The shapes of the thermal waves are studied in a range of relevant switching times. Results of a stability analysis considering both models reveal hysteresis for ignition and extinction of the reactor network. The accompanying regions of multiplicity provide insight in the potential of performing in such reactor networks exothermal reactions for certain ranges of the adiabatic temperature rise. Copyright © 2009 Elsevier B.V. All rights reserved.
[accessed November 25, 2009]
Free Keywords:Novel reactors; Network of packed beds; Moving beds; Numerical analysis; Model reduction; Autothermal operation
External Publication Status:published
Document Type:Article
Communicated by:Andreas Seidel-Morgenstern
Affiliations:MPI für Dynamik komplexer technischer Systeme/Physical and Chemical Foundations of Process Engineering
MPI für Dynamik komplexer technischer Systeme/Process Synthesis and Process Dynamics
External Affiliations:Otto-von-Guericke-Universität Magdeburg,
Institut für Verfahrenstechnik,
Universitätsplatz 2, 39106 Magdeburg, Germany
URL:http://dx.doi.org/10.1016/j.ces.2009.06.042 [Publisher's Homepage]
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