Patent ID: 6822126
Filing Date: 2004-11-23
Classification: C10G,Y10S

Abstract:
A continuous process for converting waste plastic into lube oil stock comprising:(a) passing a waste and/or virgin polyolefin into a heating unit blanketed with an inert gas and maintained at a temperature between 150Â° C. and 350Â° C. to provide a molten feed; (b) continuously passing the molten feed through a flow-through pyrolysis reactor maintained at a temperature sufficient to depolymerize at least a portion of the polyolefin and at an absolute pressure of at least one bar to produce a pyrolyzed effluent; (c) passing at least a portion of the effluent from the pyrolysis reactor to a catalytic isomerization dewaxing unit; (d) fractionating the product from the isomerization dewaxing unit; and (e) recovering a lubricating oil base stock.