摘要
简述了乙烯裂解炉模型建立的各种方法,并阐述了各种建模方法的优缺点,最终指出了乙烯裂解炉反应模型构建的研发方向.对乙烯裂解原料和产品进行精细的分子表征,构建乙烯裂解炉分子反应动力学模型,通过基于分子尺度反应动力学模型的乙烯裂解装置实时优化和仪表故障监测,实现优化控制过程自主执行,及时消除故障,最终实现基于分子模型的乙烯装置实时优化应用.通过模型应用表明:对乙烯装置全流程的实时优化和控制,实现了乙烯装置高附加值产品收率的提高和能源的有效利用,同时,可通过模型对故障仪表进行监测.
Abstract
Various methods of ethylene cracker model building are briefly described.The advantages and disadvantages of various modeling methods are elaborated.The research and development direction of ethylene cracker reaction model building are finally pointed out.Fine molecular characterization of raw materials and products of ethylene cracking is carried out,molecular reaction model of ethylene cracker is constructed.Through real-time optimization of ethylene installation and instrument failure monitoring based on molecular level reaction kinetic model,self-executing and timely eliminating the failure for optimizing control process are realized.The application of real-time optimization of ethylene cracking installation based on molecular model are ultimately realized.The model application results show that real-time optimization and control of the entire process of ethylene installation have increased the yield of high-value-added products and effectively utilized energy.Additionally,failure of instruments can be monitored by the model.
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