Heavy naphtha is a type of hydrocarbon liquid derived from crude oil during the refining process. It consists of larger molecules compared to light naphtha and has a higher boiling point, typically ranging from 150 to 200 degrees Celsius. Heavy naphtha is primarily used as a feedstock in the production of petrochemicals and as a solvent in various industrial applications. In addition to its use in petrochemical production, heavy naphtha can also be blended into gasoline to improve fuel quality. Its properties make it suitable for producing alkylate, which is a high-octane component in gasoline. Overall, heavy naphtha plays a crucial role in the energy and chemical industries.