以过程系统能量综合优化“三环节”系统方法为指导 ,采用流程模拟技术 ,提出了对炼油厂催化裂化 气体分馏联合装置进行能量优化改造方案 ,降低装置的 1 .0MPa蒸汽消耗 ;对气体分馏装置进行分离精度、产品收率及能耗三者间的权衡优化 ,以达到综合利用能量、回收低温热、降低装置能耗和提高经济效益的目的。 Under the guidance of the “three-link” system method of energy optimization of process system, a flow simulation technology was proposed to optimize the energy conversion of FCCU gas fractionation unit in refinery to reduce the steam consumption of 1.0MPa. The gas fractionation unit The separation accuracy, product yield and energy consumption between the three trade-offs in order to achieve the comprehensive utilization of energy, recovery of low temperature heat, reduce energy consumption and improve economic efficiency purposes.