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Dynamic modelling of heterogeneous catalytic reactions—II. Experimental results— oxydehydrogenation of isobutyric aldehyde to methacrolein

Authors
Journal
Chemical Engineering Science
0009-2509
Publisher
Elsevier
Publication Date
Volume
42
Issue
7
Identifiers
DOI: 10.1016/0009-2509(87)80176-8

Abstract

Abstract Application of theoretical results obtained in Part I is demonstrated by dynamic modelling of the complex heterogeneous catalytic oxidehydrogenation of isobutyric aldehyde to methacrolein. The heteropoly acid H 5Mo 10V 2PO 40 is used as catalyst. Reactor inlet concentration step changes are realized by exchanging two feed streams of different composition with solenoid valves. Quasi-continuous measurement of reactant partial pressure transients is accomplished by mass spectroscopy. Based on dynamic experiments, a reaction scheme is proposed and estimation of kinetic parameters of the main reaction using an Eley-Rideal type rate equation is carried out. Limitations of dynamic modelling are discussed.

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