石化火炬气回收方法多目标优化计算分析  

Multi-objective optimization calculation and analysis for selecting petrochemical flare gas recovery method under variation scenario

作　　者：陈坚红[1] 张开基 陈庆乐 杨帅 方伟 CHEN Jianhong;ZHANG Kaiji;CHEN Qingle;YANG Shuai;FANG Wei(College of Energy Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China;China Petroleum&Chemical Corporation,Thermal Power Department of Anqing Petrochemical,Anqing 246002,Anhui,China)

机构地区：[1]浙江大学能源工程学院,浙江杭州310027 [2]中国石油化工股份有限公司安庆石化热电部,安徽安庆246002

出　　处：《化工进展》2025年第3期1218-1227,共10页Chemical Industry and Engineering Progress

摘　　要：火炬气回收过程涉及能源、经济、环境等多学科,各学科依据自身的研究方法而存在各自不同的追求目标与评价指标,不同学科追求的目标间存在着矛盾性、给出的指标间亦存在着不可公度性,由此给火炬气回收方法的多目标择优定量计算分析带来困难,现有文献鲜有这方面的深入研究。本文探讨基于货币形式的矛盾性平衡与不可公度性解决策略,提出将多学科各自追求的目标和给出的指标进一步转化为用统一货币形式表示,并结合经济学中的成本收益分析法构建目标函数,得到了将矛盾性的平衡与不可公度性的解决转变为对目标函数值寻优的多目标优化计算方法。以某石化企业在火炬气量变化情况下的回收方法择优问题为例,应用该策略和方法进行定量计算分析,结果表明:该策略和方法具有客观且直观的特点,并具备较高合理性;火炬气量与回收系统初投资对回收方法的择优有重要影响。The process of flare gas recovery encompasses an interdisciplinary spectrum,incorporating elements of energy,economics,and environmental studies.Based on the inherent methodologies of these disciplines,different disciplines have different focus points,objectives and evaluation indicators;there are contradictions among the objectives pursued by different disciplines,and incommensurability among the indicators provided by different disciplines due to different meanings and units.This brings difficulties to the quantitative analysis of multi-objective optimization for selecting flare gas recovery methods,yet there are few in-depth studies in existing literature on this aspect.The strategy for balancing the contradictions among the objectives and resolving the incommensurability among indicators based on the monetary form was discussed,it was proposed that the objectives and indicators be further transformed into a uniform monetary form.Therefore,a multi-objective optimization calculation method was developed which transformed the balance of contradictions among multiple objectives and the resolution of incommensurability among indicators into the analysis of the objective function value.Taking the optimization problem for FGR method selecting under varying flare gas emission volumes in a petrochemical enterprise as an example,the strategy and method were applied for quantitative calculation and analysis,and then the optimal solutions corresponding to different flare gas volume were obtained.The analysis showed that the strategy and method had objective,intuitive characteristics and were highly rational.Analysis also showed that the flare gas emission volume and initial investment of recovery system had a significant impact on the optimization for selecting recovery methods.

关 键 词：火炬气回收 4E分析模型 多学科分析 多目标优化 不可公度性 

分 类 号：TE01[石油与天然气工程]