Experimental study of bifurcation diagrams and maps of two parallel interacting catalytic reactions

✍ Scribed by R.R. Xiao; M. Sheintuch; D. Luss

• Book ID: 103005725
• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 932 KB
• Volume: 41
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(86)87125-1

✦ Synopsis

Steady state multiplicity features of systems in which two reactions occur simultaneously may be affected by thermal and kinetic interactions and be qmditatively 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 Hz 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. INTRdDLJCTlON Use of modem mathematical