... 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 cooler, ... 5,Vacuum system:vacuum cooler,vacuum water tank,vacuum pump set;6,Oil storage system:Receiving tanks for all ...