... equipment:1,catalyzing system:catalyst blending tank,blender,transfer pump;2,Blending system:catalyzing treatment tank,blender,vacuum system ... system:distillation tower,distillation kettle,circulation pump,heat exchanger;4,Cooling system:water pump,cooling water reservoir,first stage ... ,Vacuum system:vacuum cooler,vacuum water tank,vacuum pump set;6,Oil storage system:Receiving tanks for all distilled ...