Abstract
Steady state multiplicity features of systems in which two reactions occur simultaneously may be affected by thermal and kinetic interactions and be qualitatively different from those of a single reaction. This is illustrated by an experimental study of the catalytic co-oxidation of hydrogen with either ammonia, butane or ethylene on a Pt wire. The bifurcation diagrams of wire temperature at a fixed hydrogen concentration vs. co-reactant concentration reveal multiplicity features which cannot be accounted for just by thermal interaction. The ignited branch was discontinuous at intermediate H2 concentrations and extinction occurred upon increasing the co-reactant concentration. The loci of the observed ignition and extinction points were used to construct a bifurcation map in the concentration plane. The maps show that kinetic inhibition exists between the two reactions in addition to thermal interaction.
Original language | English |
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Pages (from-to) | 2085-2092 |
Number of pages | 8 |
Journal | Chemical Engineering Science |
Volume | 41 |
Issue number | 8 |
DOIs | |
State | Published - 1986 |
Externally published | Yes |