... stages cooling, they’re separately stored in water, gasoline/diesel, light lube oil, heavy lube oil receivers. The noncondensable ... ,blender,transfer pump;2,Blending system:catalyzing treatment tank,blender,vacuum system;3,Distillation system:distillation tower,distillation kettle,circulation ... ,first stage cooler,second stage cooler;5,Vacuum system:vacuum cooler,vacuum water tank,vacuum pump set; ...