The five noncyclic hexane homologs were mixed and tested for their octane qualities. The mixtures of normal hexane with the branched homologs, as well as a few of the combinations of branched species, had statistically significant higher octane quality than would be expected if the compounds responded in the CFR octane test engines as a linear combination of the individual components. It is hypothesized that this positive interaction is a reflection, of the formation of intermediates, via intermolecular hydrogen abstraction reactions, which are not able to progress along branching pathways during the combustion process. The formation of these intermediates delays the low temperature reaction kinetics, making the reaction mixture more knock resistant than expected.
Studies of Octane Properties of Mixtures of Isomeric Hexanes
Sae Technical Papers
1988 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1988
1988-10-01
Aufsatz (Konferenz)
Englisch
Studies of octane properties of mixtures of isomeric hexanes
Kraftfahrwesen | 1988
|Study of Combustion Properties of Iso-Octane, w-Heotane. And Ethanol Air Mixtures
British Library Conference Proceedings | 2007
|Octane Rating of Natural Gas-Gasoline Mixtures on CFR Engine
SAE Technical Papers | 2014
|Laminar Burning Velocities of Iso-Octane-Air Mixtures — A Literature Review
SAE Technical Papers | 1987
|Laminar burning velocities of Iso-Octane-air mixtures - a literature review
Kraftfahrwesen | 1987
|