炼化企业中氢气管网的中间等级设置与优化分析  

Analysis and optimization on installation of intermediate levels for a hydrogen distribution network in a refinery

作　　者：张亮[1] 刘永忠[1] 闫哲[1] 

机构地区：[1]西安交通大学化学工程系,陕西西安710049

出　　处：《计算机与应用化学》2010年第10期1361-1364,共4页Computers and Applied Chemistry

基　　金：国家自然科学基金项目(No.20936004;No.20876123).

摘　　要：为了提高炼化企业氢气系统的可扩充性和简化管网结构,本文在综合考虑系统中氢阱所需求的氢气压力和纯度基础上,提出了适配氢阱需求的中间等级确定方法,并考虑氢气压缩机投资费用与标称气量的关系建立了数学规划模型。通过所建立的数学规划模型可以确定氢气分配管网中中间等级的级数、压力和氢气纯度等状态变量。本文还针对某炼化企业氢气分配系统进行了中间等级的实例分析。研究表明:氢气系统中间等级的数量和状态的设置需权衡系统的经济性和网络结构的复杂性,而中间等级数量的增加并不一定能够提高系统的经济性。To improve scalability and simplify network structure of hydrogen distribution systems in refineries,a systematic method for optimization of intermediate levels in hydrogen distribution systems,which features meeting demands of hydrogen sinks in the system,was proposed.A mathematical programming model was established,in which the relationship between the capital cost of compressors and the nominal capacity was embedded.The states of the intermediate levels in the system,including stages,pressures and purities of the intermediate levels,were determined through the mathematical programming model.A practical case study was used to illustrate the proposed method.It shows that the trade-off between the economical performance of the system and the complexity of the network should be taken into consideration.Increasing the level numbers may be not able to improve the economical performance of the system.

关 键 词：氢气分配系统 中间等级 优化 

分 类 号：TQ021.8[化学工程]