... to wide range of used oil:All sorts lube oil(Gasoline engine oil, diesel engine oil etc. all waste lube oil);2,No secondary pollution ... equipment:1,catalyzing system:catalyst blending tank,blender,transfer pump;2,Blending system:catalyzing treatment tank,blender,vacuum system ... Vacuum system:vacuum cooler,vacuum water tank,vacuum pump set;6,Oil storage system:Receiving tanks for all distilled fractions ...