... cost; 5,High regeneration rate; IV. Main parts of the equipment:1,catalyzing system:catalyst blending tank,blender,transfer ... pump;2,Blending system:catalyzing treatment tank,blender,vacuum system;3,Distillation system:distillation tower,distillation kettle,circulation ... reservoir,first stage cooler,second stage cooler;5,Vacuum system:vacuum cooler,vacuum water tank,vacuum pump set; ...