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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 化工学院年产15.5万吨苯乙烯精馏工艺设计模拟计算毕业设计毕业论文
化工与材料工程学院毕业设计年产15.5万吨苯乙烯精馏模拟计算及工艺设计Anannualoutputof155,000tonsofstyrenedistillationsystemsimulationandprocessdesign学生学号091106学生姓名专业班级化工091106指导教师孙庆华高工联合指导教师王桂英教授完成日期2013.05.28吉林化工学院JilinInstituteofChemicalTechnology化工与材料工程学院毕业设计-I-摘要本设计的内容是年产15.5万吨苯乙烯精馏系统模拟计算及工艺设计,工艺采用连续精馏的方式,使用四个精馏塔,将来自400#工段的脱氢混合液精馏成纯度大于99.7%的苯乙烯产品以及循环乙苯、循环苯、甲苯副产品和苯乙烯焦油。本设计主要以中国石油吉林石化公司苯乙烯车间的工艺参数做参考,并根据吉林市的自然环境、原料来源、交通工具、电力供应等实际情况,对T0403塔所给各个组分的质量分数并经过PROⅡ软件模拟,得出各个塔的理论板数和回流比以及工艺条件,得出本套工艺装置的初试数据。同时本设计完成了苯乙烯精馏工序的物料衡算、热量衡算、并对苯乙烯回收塔(T0403)进行了严格的设备计算。对塔顶冷凝器、塔顶回流罐、所有精馏塔的管进行了详细计算和选型,同时对进料泵也进行了计算和选型。绘制了带控制点的工艺流程图、物料图、设备布置图及管道布置图。关键词:苯乙烯;精馏工艺;PROⅡ年产15.5万吨苯乙烯精馏模拟计算及工艺设计-II-AbstractThedesignofthecontentis15.5milliontonsofstyrenedistillationprocessdesign,thisprocessusingcontinuousdistillationmethods,withfourdistillationcolumnsandafilmevaporator,themixtureofdehydrogenationfrom400#sectiondistillationofstyreneintopuritymorethan99.7%ofproduction,andcycleofethylbenzene,thecycleofbenzene,tolueneandstyreneby-productoftar.Thedesign'smainbasisisJilinChemicalIndustrialCompanyLimited104-styreneplantparameters,andaccordingtothenaturalenvironmentofJilinCity,thesourceofrawmaterials,transport,powersupply,andsoontheactualsituation.AfterthesimulationofitsPROⅡsoftwareobtainedthesetofprocessequipmentdesign.Tocompletetheentireprocessofthematerialbalance,thestyreneseparationtower(T0403)forthestricttermsofequipment,.Thetopcondensercarriedoutadetailedcalculationandselection,thenapreliminaryproductdesignofbottomreboilers,pumpsandthebackflowcans.Drawingcraftprocessdiagrams,equipmentlayout,andlayoutofpipes.KeyWords:Styrene;TechnologyofDistillation;PROⅡ化工与材料工程学院毕业设计-1-目录摘要......................................................................IAbstract.....................................................................II第一篇设计说明书............................................................4第1章绪论..................................................................51.1设计说明..............................................................51.2产品概述..............................................................51.2.1苯乙烯的性质....................................................51.2.2苯乙烯的用途....................................................61.2.3苯乙烯生产原理和贮存............................................61.3设计地区的自然条件....................................................71.4厂址的选择............................................................71.5生产装置的选择........................................................71.6生产工艺流程..........................................................81.6.1全车间生产工艺流程..............................................81.6.2苯乙烯塔生产工艺流程............................................91.7本岗位主要设备及其作用................................................91.8三废的来源及处理......................................................9第二篇设计计算书............................................................11第1章物料衡算.............................................................12第2章热量衡算.............................................................162.1温度压力的确定.......................................................162.2热量衡算.............................................................16第3章T0403设备计算........................................................193.1平均密度的计算.......................................................193.2液相平均表面张力的计算...............................................203.3液相平均粘度的计算...................................................203.4理论板数的计算.......................................................203.5回流比的计算.........................................................203.6确定进料位置.........................................................203.7精馏塔的塔体工艺尺寸计算.............................................213.7.1塔径的计算.....................................................213.7.2精馏塔高度的有效计算...........................................223.7.3溢流装置计算...................................................23年产15.5万吨苯乙烯精馏模拟计算及工艺设计-2-3.7.4堰长Wl........................................................233.7.5流堰高度.......................................................233.7.6弓形降液管宽度dW和截面积fA...................................243.7.7降液管底隙高度0h...............................................243.8塔板布置.............................................................253.8.1边缘区宽度的确定...............................................253.8.2开孔区面积计算.................................................253.8.3浮阀数目及排列.................................................253.9浮阀的流体力学验算...................................................263.9.1塔板压降.......................................................263.9.2气体通过液层的阻力1h的计算.....................................273.9.3液体表面张力的阻力的计算.......................................273.9.4液面落差.......................................................283.9.5液沫夹带.......................................................283.9.6漏液...........................................................293.9.7液泛...........................................................293.10塔板负荷性能图......................................................303.10.1漏液线.......................................
本文标题:化工学院年产15.5万吨苯乙烯精馏工艺设计模拟计算毕业设计毕业论文
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