毕业设计说明书(庞永强)522 (S)1

广西科技大学毕业设计说明书课题名称年产25000吨碳酸二甲酯生产车间工艺设计英文名称TheProcessDesignofProductionWorkshopwithAnnualOutputof25000TonDimethylCarbonate学院生物与化学工程学院专业化学工程与工艺班级化工092学号200900601064姓名庞永强指导教师姚志湘二零一三年五月二十日广西科技大学毕业设计说明书1摘要碳酸二甲酯（DMC）是一种重要的工业原料，被认为是新近崛起的极具发展前景的绿色化工产品，在溶剂、汽油柴油添加剂、锂离子电解液以及化学合成等领域广泛应用。通过对几种碳酸二甲酯工业生产工艺比较，采用以氮气为保护气，甲醇气相氧化羰基化法制碳酸二甲酯工艺，该法是一种较为绿色的合成方法。本课题进行的是年产25000吨碳酸二甲酯车间的工艺设计，主要对以氧气、甲醇、一氧化碳为原料制取碳酸二甲酯的工艺过程进行设计，并根据相关条件进行物料衡算和热量衡算。根据工艺流程与操作条件对工序中的主要设备进行了计算与选型，设计还包括车间布置设计、经济分析、劳动保护、安全生产与“三废”处理等内容。设计所得成果主要有设计说明书和相应的图纸,其中图纸包括车间平面布置图、带控制点的工艺流程图和主设备图。关键词：碳酸二甲酯；生产工艺；车间设计广西科技大学毕业设计说明书2AbstractDimethylcarbonate(DMC)isanimportantindustrialrawmaterial,isconsideredtobeverypromisingnewlyemerginggreenchemicalproducts,solvents,gasoline,dieselfueladditives,lithium-ionelectrolyte,andotherwidelyusedinchemicalsynthesis.Dimethylcarbonatebyseveralindustrialprocessesusedtocomparewithnitrogenasprotectivegas,methanolvaporphaseoxidativecarbonylationofdimethylcarbonatelegalprocess,themethodisamoregreensynthesismethod.Thistopicistheannualoutputof25,000tonsfordimethylcarbonateplantprocessdesign,mainlywithoxygen,methanol,carbonmonoxideasrawmaterialsdimethylcarbonateprocessdesign,andinaccordancewiththerelevantconditionsofmaterialbalanceandheataccountancy.Accordingtoprocessandoperatingconditionsontheprocessofthemainequipmentforthecalculationandselection,designalsoincludesplantlayoutdesign,economicanalysis,laborprotection,safetyproductionandthe“threewastes”treatmentandsoon.Designresultsachievedmainlydesignspecificationandthecorrespondingdrawings,whichdrawingsincludeworkshopsfloorplanwithcontrolpointsandthemainequipmentflowchartdiagram.Keyword:DimethylCarbonate;ProductionProcess;PlantDesign年产25000吨碳酸二甲酯生产车间工艺设计3目录摘要....................................................................................................................................1Abstract................................................................................................................................21绪论............................................................................................................................51.1选题的意义和作用..........................................................................................51.2碳酸二甲酯的性质及用途..............................................................................51.2.1DMC的物理性质和化学性质................................................................51.2.2碳酸二甲酯的用途..................................................................................61.2.3中国碳酸二甲酯的产量分析..................................................................61.3碳酸二甲酯的生产方法及工艺简介..............................................................61.3.1已工业化的工艺过程及其研究状况......................................................61.3.2碳酸二甲酯生产工艺的评述..................................................................91.4计算机在设计中的应用..................................................................................91.5工艺选取和工艺流程简介............................................................................121.5.1本设计的工艺选取................................................................................121.5.2工艺流程简介........................................................................................122工艺计算....................................................................................................................162.1工艺参数........................................................................................................162.2物料衡算........................................................................................................162.2.1列管式固定床反应器的物料衡算........................................................182.2.2闪蒸罐的物料衡算................................................................................202.2.3预精馏塔物料衡算................................................................................212.2.4废水精馏塔的物料衡算........................................................................222.2.5DMC精馏塔的物料衡算......................................................................232.2.6甲缩醛精馏塔的物料衡算....................................................................242.3热量衡算........................................................................................................252.3.1原料预处理热量衡算............................................................................252.3.2列管式固定床反应器的热量衡算........................................................262.3.3闪蒸罐的热量衡算................................................................................292.3.4预精馏塔的热量衡算............................................................................292.3.5废水精馏塔的热量衡算........................................................................312.3.6DMC精馏塔热量衡算..........................................................................322.3.7甲缩醛精馏塔的热量衡算....................................................................333列管式固定床反应器的设计....................................................................................353.1反应器的简介................................................................................................353.