METHOD FOR MANUFACTURING LIGHT OIL AND RAW MATERIALS OF LUBE BASE OIL, CAPABLE OF SIMULTANEOUSLY MANUFACTURING LIGHT OIL AND RAW MATERIALS OF LUBE BASE OIL

摘要

PURPOSE: A method for manufacturing light oil and raw materials of lube base oil are provided to recycle part of unconverted oil by a unit process, thereby increasing productivity of light oil like diesel.;CONSTITUTION: A method for manufacturing light oil and raw materials of lube base oil comprises the following steps. Fuel oil is hydro-cracked. The fuel oil after the hydro-cracking is distilled and classified into light oil and the first unconverted oil. The classified first unconverted oil is distilled while pressure of the classified first unconverted oil is reduced so that the first unconverted oil is classified into raw materials of lube base oil and the second unconverted oil. Part or all of the classified second unconverted oil is recycled into a classification distilling process.;COPYRIGHT KIPO 2011