Enhanced exergy cost optimization of operating conditions in FCCU main fractionator  

作　　者：Chonglin Zhong Yi Zheng Shenghu Xu Shaoyuan Li 

机构地区：[1]Department of Automation,Shanghai Jiao Tong University,Key Laboratory of System Control and Information Processing,Ministry of Education,Shanghai 200240,China [2]SinopecJiujiang Branch Corporation,Jiufiang 332004,China

出　　处：《Chinese Journal of Chemical Engineering》2018年第8期1750-1757,共8页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(61590924,61673273,61521063)

摘　　要：Exergy indicates the maximal energy that can do work effectively. Different from optimization of product quality or calculation of generic energy conservation in most previous studies, the application of exergy analysis and exergy cost optimization in petrochemical industry is of great economic and environmental significance. Based on the main fractionator in Jiujiang Petrochemical Complex No. 2 FCCU, an enhanced exergy cost optimization under different operating conditions by adjusting set points of temperature and valves opening degree for flow control is studied in this paper in order to reduce exergy cost and improve the quality of energy. A steadystate optimization algorithm to enhance exergy availability and an objective function comprehensively considering exergy loss are proposed. On the basis of ensuring the quality of petroleum products, the economic benefits can be improved by optimizing the controllable variables due to the fact that exergy cost is decreased.Exergy indicates the maximal energy that can do work effectively. Different from optimization of product quality or calculation of generic energy conservation in most previous studies, the application of exergy analysis and exergy cost optimization in petrochemical industry is of great economic and environmental significance. Based on the main fractionator in Jiujiang Petrochemical Complex No. 2 FCCU, an enhanced exergy cost optimization under different operating conditions by adjusting set points of temperature and valves opening degree for flow control is studied in this paper in order to reduce exergy cost and improve the quality of energy. A steadystate optimization algorithm to enhance exergy availability and an objective function comprehensively considering exergy loss are proposed. On the basis of ensuring the quality of petroleum products, the economic benefits can be improved by optimizing the controllable variables due to the fact that exergy cost is decreased.

关 键 词：EXERGY Optimization of operating conditions FRACTIONATOR FCCU Exergy Cost 

分 类 号：TE962[石油与天然气工程—石油机械设备]