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 analys...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.展开更多
The gasoline and diesel accorded with Euro Ⅲ standard,which has been continuously concerned by various fields,has entered into Beijing petrol stations on schedule. Since zero hour on the first of July,all of petrol s...The gasoline and diesel accorded with Euro Ⅲ standard,which has been continuously concerned by various fields,has entered into Beijing petrol stations on schedule. Since zero hour on the first of July,all of petrol stations in Beijing have changed to supply gasoline and diesel accorded with Euro Ⅲ stadard,and the vehicle-used oil products,展开更多
基金Supported by the National Natural Science Foundation of China(61590924,61673273,61521063)
文摘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.
文摘The gasoline and diesel accorded with Euro Ⅲ standard,which has been continuously concerned by various fields,has entered into Beijing petrol stations on schedule. Since zero hour on the first of July,all of petrol stations in Beijing have changed to supply gasoline and diesel accorded with Euro Ⅲ stadard,and the vehicle-used oil products,
