炼油厂燃料气系统的优化方法与应用
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摘要
在深入分析炼化企业燃料气系统运行特征的基础上,通过加热炉燃料热值与效率关联分析,获取加热炉的最佳燃料热值需求。引入夹点分析法,构建基于热值的燃料气系统分析与网络优化方法,指导燃料气管网的优化改造。充分考虑炼油厂副产燃料气高附加值组分的回收过程,以燃料气系统运行效益最大化为目标,以各加热炉热值及耗量为约束,构建调度优化模型,指导燃料气系统的调度优化。某石化企业的应用表明,相关方法有效提升了燃料气系统的调度及管理水平,并取得了显著的节能减排效果。
On the basis of in-depth analysis of operating characteristics of the fuel gas system in refinery and petrochemical enterprises,the optimum fuel calorific value demand is obtained by using the correlation analysis between the fuel heating value and efficiency of the furnace. The pinch analysis method is introduced to build a method of fuel gas system analysis and network optimization based on the flow and calorific value of fuel gas to guide the optimization and reform of fuel gas piping network. Fully considering the recovery process of high value-added components in by-product fuel gas from refinery; with maximizing the operating efficiency of the fuel gas system as the goal,and the heating value and consumption of each heating furnace as constraints,the scheduling optimization model is constructed to guide the scheduling optimization of the fuel gas system. The related technology has applied in a petrochemical enterprise,which effectively improves the scheduling and management level of fuel gas system,and achieves significant effects of energy saving and emission reduction.
On the basis of in-depth analysis of operating characteristics of the fuel gas system in refinery and petrochemical enterprises,the optimum fuel calorific value demand is obtained by using the correlation analysis between the fuel heating value and efficiency of the furnace. The pinch analysis method is introduced to build a method of fuel gas system analysis and network optimization based on the flow and calorific value of fuel gas to guide the optimization and reform of fuel gas piping network. Fully considering the recovery process of high value-added components in by-product fuel gas from refinery; with maximizing the operating efficiency of the fuel gas system as the goal,and the heating value and consumption of each heating furnace as constraints,the scheduling optimization model is constructed to guide the scheduling optimization of the fuel gas system. The related technology has applied in a petrochemical enterprise,which effectively improves the scheduling and management level of fuel gas system,and achieves significant effects of energy saving and emission reduction.
引文
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[10]陈思.炼油厂火炬气补充燃料气系统优化改造[J].炼油技术与工程,2015,45(7):15-17.
[11]王珏.回收炼厂干气中高浓度C2工艺开发及经济性评价[D].天津:天津大学,2015.
[12]贾小平,刘彩洪,钱宇.化工过程系统多目标夹点分析方法的案例研究[J].计算机与应用化学,2011,28(12):1573-1576.
[2]ROSSITER A P,JONES B P.20.Fuel gas management and energy efficiency in oil refineries[M].New Jersey:John Wiley&Sons,Inc,2015:251-259.
[3]吴斌超,马青山.优化燃料气系统,实现炼厂节能减排[C]//中国石油石化节能减排技术交流大会,2013.
[4]陈坚.炼厂瓦斯气体综合利用的途径和实践[C]//国际甲烷市场化大会暨展览会,2007.
[5]MIVECHIAN A,PAKIZEH M.Hydrogen recovery from Tehran refinery off-gas using pressure swing adsorption,gas absorption and membrane separation technologies:Simulation and economic evaluation[J].Korean Journal of Chemical Engineering,2013,30(4):937-948.
[6]DRNEVICH R F,HERZOG J O.Integrated olefin recovery and hydrogen production from refinery off-gases:US7041271[P].2006.
[7]侯卫锋,古勇,洪志刚,等.气柜负荷预测设备和方法以及瓦斯调度系统和方法:CN102032443A[P].2011.
[8]ZHANG J D,RONG G.A MILP model for multi-period optimization of fuel gas system scheduling in refinery and its marginal value analysis[J].Chemical Engineering Research&Design,2008,86(2):141-151.
[9]黄德先,张伟勇,吕文祥,等.加热炉热效率多区域智能在线优化控制方法:CN101881563A[P].2010.
[10]陈思.炼油厂火炬气补充燃料气系统优化改造[J].炼油技术与工程,2015,45(7):15-17.
[11]王珏.回收炼厂干气中高浓度C2工艺开发及经济性评价[D].天津:天津大学,2015.
[12]贾小平,刘彩洪,钱宇.化工过程系统多目标夹点分析方法的案例研究[J].计算机与应用化学,2011,28(12):1573-1576.