高浓度乙烯液相烷基化制备乙苯装置流程模拟与优化

发布时间：2018-03-07 07:54

本文选题：高浓度乙烯　切入点：乙苯　出处：《延边大学》2017年硕士论文　论文类型：学位论文

【摘要】：高浓度乙烯与苯的烷基化反应是合成乙苯的重要方法之一。此技术是由中科院大连物化所、抚顺石化分公司及中国寰球工程公司辽宁分公司共同进行开发的。高浓度乙烯烷基化技术采用液相烃化反应与液相反烃化反应,分别在两个反应器中进行,反应器中填充分子筛催化剂,该技术路线在生产制备乙苯方面具有众多优势。本文对目前广泛使用制乙苯技术做出介绍及对比。并针对高浓度乙烯烷基化制备乙苯技术路线并运用PRO/2流程模拟软件进行全装置的流程模拟计算与动力模型分析,并在此基础上对技术流程的分离指标和能量消耗进行对比与优化。PRO/2流程模拟软件中内部嵌套有Soace-Redichi-Kwong物性方程,此方程可以准确的计算出汽液平衡及物料性质等信息作为参考并选定合适的收敛方法、撕裂方程和设备计算顺序可以使流程快速收敛。将全套装置的流程模拟数据与实际数据进行对比,结果一致。
[Abstract]:The alkylation of high concentration ethylene with benzene is one of the most important methods for the synthesis of ethylbenzene. Fushun Petrochemical Company and Liaoning Branch of China Global Engineering Company jointly developed the alkylation technology of high concentration ethylene in two reactors, the liquid-phase alkylation reaction and the liquid-opposite alkylation reaction. The reactor was filled with molecular sieve catalysts, This technical route has many advantages in producing ethylbenzene. This paper introduces and compares the widely used ethylbenzene production technology at present, and simulates the ethylbenzene process by PRO/2 for ethylbenzene alkylation with high concentration. The software is used to simulate the process and analyze the dynamic model of the whole plant. On this basis, the separation index and energy consumption of the technical process are compared and optimized. The Soace-Redichi-Kwong physical property equation is embedded in the process simulation software. This equation can accurately calculate the information of vapor-liquid equilibrium and material properties as a reference and select a suitable convergence method. The tearing equation and the order of equipment calculation can make the process converge rapidly. The simulation data of the whole set of equipment are compared with the actual data, and the results are consistent.
【学位授予单位】：延边大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TQ241.1

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