Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (8): 1750-1757.DOI: 10.1016/j.cjche.2018.06.013
• Selected Papers from the 28th Chinese Process Control Conference • 上一篇 下一篇
Chonglin Zhong1, Yi Zheng1, Shenghu Xu2, Shaoyuan Li1
Chonglin Zhong1, Yi Zheng1, Shenghu Xu2, Shaoyuan Li1
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.