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Reduction‐Oxidation Cycles in a Fixed‐Bed Reactor with Periodic Flow Reversal
Author(s) -
Seiler Harald,
Emig Gerhard
Publication year - 1999
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/(sici)1521-4125(199906)22:6<479::aid-ceat479>3.0.co;2-i
Subject(s) - exothermic reaction , adiabatic process , chemical reactor , continuous reactor , redox , chemical reaction , chemical reaction engineering , flow (mathematics) , reduction (mathematics) , raw material , partial oxidation , chemistry , process engineering , thermodynamics , catalysis , chemical engineering , materials science , mechanics , inorganic chemistry , physics , engineering , organic chemistry , mathematics , geometry
The operation of chemical reactions and processes in an unsteady‐state regime can lead to a better use of energy and matter in the available feedstock. Two examples are the periodic change of the flow direction while operating an exothermic reaction in an adiabatic fixed‐bed reactor (reverse‐flow reactor) and the splitting up of heterogeneously catalyzed oxidation reactions into two separate gas‐solid reactions (reduction and oxidation step). In this study, the advantages of both concepts are used and an investigation of the combination for two‐step processes (reaction concept) and reverse‐flow reactors (reactor concept) with chemical reaction engineering techniques are shown.