1.lower production cost 2.no need any acid or clay 3.higher recycled oil quality 4. ... is different from the traditional distillation process with sulfuric acid,it is also different from the current hydrogenation technology. ... tank,blender,transfer pump;2,Blending system:catalyzing treatment tank,blender,vacuum system;3,Distillation system:distillation tower,distillation kettle,circulation pump ...