well, like naphtha, it's likely a mix of aliphatic hydrocarbons, so you won't 'purify' it
per se. fractional distillation may give you realtively pure fractions of some of the lower boiling components, but that requires a vigreux, or a column with packing (like glass beads or steel mesh)
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck