Small Oil refinery for used engine oil 1.Material: crude oil, heavy oil, waste ... to 3 To refine crude oil, heavy oil, used engine oil, used lubricants,used plastic, waste tires and wax ... small refiney for turn-key project, with the below raw materials:Crude oil Heavy Oil Used engine oil Used ... . BOT: build, operation and transfer4. Other ways For more information, please feel free to view our website.