Alkanes used by refiners and isomerization and temperature effectsAuthor(s): Tina Parks
Modern refiners use the isomerization process to transform low-octane light naphtha fractions into high-octane gasoline components. The vast majority of passenger cars use gasoline as their main fuel source. Hydrocarbon chemicals found in gasoline include benzene, toluene, xylene, methyl benzene, regular and isomers of hexane, heptane, and octane. A petrol car's exhaust is regarded as dangerous because it frequently contains unburned gasoline, a serious health risk. When benzene is present in the exhaust, it becomes especially dangerous, and many countries have banned gasoline that contains more than 1.0 percent benzene.