Heavy Naphtha

Heavy naphtha is a distillation cut primarily made up of material roughly the same density as finished gasoline. Heavy naphtha molecules typically have from 7-9 carbon atoms. Its boiling range can be from 180F to 330F. Most of the heavy naphtha in a refinery comes directly from the atmospheric distillation unit. However, additional volumes may come from the hydrocracker (as heavy hydrocrackate) or from the coker (as coker naphtha).