基于机会约束MINLP模型的多工况氢气网络操作优化技术  

Operation Optimization Technology of Multi-Condition Hydrogen Network Based on Chance Constrained MINLP Model

作　　者：潘登[1] 曹萃文[1] PAN Deng;CAO Cuiwen(Key Laboratory of Smart Manufacturing in Energy Chemical Process,Ministry of Education,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学能源化工过程智能制造教育部重点实验室,上海200237

出　　处：《石油学报（石油加工）》2023年第2期368-379,共12页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(61673175、61973120)资助。

摘　　要：随着日益严格的环保标准以及新能源需求的不断增加,氢气已经成为炼油厂的重要资源。针对炼油厂存在多种工况的情况,在氢源产氢量、氢阱耗氢量、市场价格不确定的环境下,以氢气网络运行与CO_(2)排放成本(TOEC)之和为目标,考虑氢源标况流量、氢阱标况流量、氢气含量、压缩机、变压吸附(PSA)装置、燃料和管道约束,建立了多工况机会约束混合整数非线性规划(MCC-MINLP)氢气网络操作优化模型。对某炼油厂涉氢装置运行数据进行拟合,得到不同工况下产氢量与耗氢量的分布情况后,在不同置信水平下求解MCC-MINLP模型,得到了各工况的氢气网络最优操作方案。计算结果表明,通过增加一套PSA装置以及对应管道,可以减少15.17%~16.68%的新氢使用量并优化原氢气网络结构,优化后氢气网络的TOEC降低了2.19%~2.34%。With the increasingly stringent environmental standards and the increasing demand for new energy,hydrogen has become an important resource for refineries.In view of the existence of multiple conditions in refineries in the uncertain conditions of hydrogen production from hydrogen sources,hydrogen consumption by hydrogen sinks and market price,and taking the sum of hydrogen network operation cost and CO_(2)emission cost(TOEC)as the target,a multi-condition chance constrained mixed integer nonlinear programming(MCC-MINLP)hydrogen network operation optimization model was established considering the constraints on the flow rate of hydrogen sources and hydrogen sinks in standard conditions,hydrogen content,compressor,pressure swing adsorption(PSA)unit,fuels and pipelines.The distribution of hydrogen production and consumption under different conditions was obtained by fitting the operation data of hydrogen-related units in a refinery,and the optimal operation schemes for hydrogen network under various conditions were obtained by solving the MCC-MINLP model at different confidence levels.The calculation result shows that by adding a set of PSA unit and corresponding pipelines,the consumption of fresh hydrogen can be reduced by 15.17%—16.68%,and the original hydrogen network structure can be optimized,so that TOEC of the optimized hydrogen network is reduced by 2.19%—2.34%.

关 键 词：氢气网络 机会约束规划 多工况 混合整数非线性规划(MINLP) 操作优化 

分 类 号：TQ021.8[化学工程]