集成炼油企业生苍邡与能量系统的生产计划优化.pdf

第 66 卷 第 1 期 化 工 学 报 Vol.66 No.1 2015 年 1 月 CIESC Journal January 2015 集成炼油企业生产与能量系统的生产计划优化 赵浩，荣冈，冯毅萍 （浙江大学智能系统与控制研究所，工业控制技术国家重点实验室，浙江杭州 310027 ） 摘要：炼油企业通常由物料生产系统与能量系统组成。传统的企业生产计划优化通常以生产系统物流优化为主， 能量系统基于物料生产优化结果进行产能优化以满足企业级能源供需平衡。此种优化方法不仅压缩了企业整体优 化空间并且降低了燃料油与瓦斯等中间产品的利用率。基于装置能耗模型与能源供需以及中间产品的产耗质量平 衡关系，建立炼油企业生产系统与能源系统的集成优化模型，通过求解 MINLP 模型进而实现企业生产物流与能 流的集成优化。案例实践表明，相较于传统分步优化方法，集成优化方法不仅有效降低了全厂的生产成本，并且 实现了生产的节能减排。 关键词：过程系统；集成；优化；能源系统；公用工程；节能；减排 DOI ：10.11949/j.issn.0438-1157 中图分类号：TQ 021.8 文献标志码：A 文章编号：0438—1157 （2015 ）01—0228—09 Integrated optimization of production and utility system planning in refining industry ZHAO Hao, RONG Gang, FENG Yiping (State Key Laboratory of Industrial Control Technology, Institute of Cyber-Systems and Control, Zhejiang University, Hangzhou 310027, Zhejiang, China) Abstract: A typical refinery consists of the production system and the utility system. Traditional refinery-wide optimization is carried out in a sequential process which not only misses opportunities of increasing the overall refinery economic margin, but also leads to the economic losses of extra fuel gas vent and environmental cost of harmful gas emission. A novel integrated approach which couples the production system and the utility system is presented and optimized simultaneously in a refinery-wide mixed-integer nonlinear programming (MINLP) model. The production unit energy consumption model is introduced by considering the relationship of energy consumption, unit thr