糠醛精制装置扩产的换热网络结构调优与能量综合优化

运用过程系统能量综合优化的“三环节”方法，对一要扩产的轻质糠醛精制装置进行了能量综合优化。通过采用增设沉降罐、改二效蒸发为三效蒸发并优化各效的蒸发率、对换热网络进行优化合成及换热网络的结构调优等能量的工艺利用、回收及转化环节的改进措施，并建立换热网络结构调优的经济优化数学模型进行优化，使扩产的糠醛精制装置的能量综合优化改进方案能耗达到了国内先进水平。

Heat Exchanger Network Structure Evolution and Optimal Energy Integration for a Lubricant Base Oil Refinery Unit

n　energy　integration　optimization　has　been　conducted　for　a　lubricant　base oil　refinery　unit　to　be　expanded　with　the　“three links”systematic　methodology　for　process　systemsThe　main　improvement　measures　include:installing　settlement　tanks　and　changing　the　two　effect　evaporator　to　three　effect　evaporator　along　with　optimizing　the　evaporation　ratio　of　each　effect,synthesizing　optimal　heat　exchanger　netwrok(HEN)　and　carrying　out　the　structure　evolution　of　the　HENAn　exergoeconomic　mathematical　model　was　established　to　optimize　the　HEN　structureThrough　the　above　work,we　have　proposed　an　optimal　energy　integration　design　scheme　for　the　unit　to　be　expanded,to　make　its　energy　consumption　level　one　of　the　best　in　China