Solubility parameter as polarity measure for high-boiling oil products

• Conventional, non-conventional base oils and solid hydrocarbons characterized by physicochemical methods.
• IGC in examination of oil products.
• Solubility parameter reflect the material composition and structure – it works as polarity measure.

The use of solubility parameter determined by means of inverse gas chromatography, as a polarity measure of polarity for oil products from refinery and petrochemical processes is presented and discussed. The higher value of solubility parameter corresponds to higher polarity of examined materials. Higher polarity resulted from the higher content of polar components, i.e. aromatics hydrocarbons and resins.