Effect of Gasoline Composition on Emissions of Aromatic Hydrocarbons

Effect of fuel structure on emissions from a spark-ignited engine. 2. Naphthene and aromatic fuels

“…This conversion contributes to the benzene enrichment in the exhaust gas since gasoline normally contains appreciable toluene. The magnitude of benzene emission from toluene is similar to that observed in earlier studies of fuel mixtures containing toluene (10). It is possible that a similar enrichment in exhaust toluene occurs because of the presence of more highly substituted benzenes in gasoline fuels.…”

“…High-purity solvent-grade cyclohexane and methylcyclohexane were used in these experiments. The carbon content of the aromatic blend consisted of 69.5% m-and p-xylene (not separated in our GC analysis), 10.8% oxylene, and 19.6% ethylbenzene. Any impurities were present at less than 0.05%.…”

Etudes des mecanismes de formation des polluants specifiques emis par les moteurs a combustion interne

“…[Kameoka 1994]. D'autres composés, non aromatiques, peuvent donner du benzène [Marshall 1989], comme le cyclohexane, qui le favorise tout de même moins que les aromatiques [Petit 1993]. L'isooctane ne produit pas de benzène [ Harpster 1995].…”