酯交换法生产PET工艺流程设计院、部：学生姓名：指导教师：职称专业：班级：完成时间：摘要本设计是年产八万吨聚对苯二甲酸二乙醇脂（PET）合成的工艺设计。本文对PET的研究，生产进行了详细的概述，阐述了其在化学工业中的作用与地位。并介绍了PET的制备方法和确定了PET的生产工艺。在确定PET生产工艺的基础上进行了物料衡算，热量衡算，主要设备选型，工艺管路设计。利用AutoCAD软件绘制主要设备图，工艺流程图以及车间布置图。文中还对三废处理及废料回收、节能措施与安全防范、技术经济初步分析核算进行了简单的阐述。关键词：聚对苯二甲酸二乙醇脂；PET；AutoCADABSTRACTThisdesignisanannualoutputofeightythousandtonsofpolyethyleneterephthalate(PET)processdesign.Inthispaper,thePETstudy,adetailedoverviewoftheproduction,expoundsitsroleandpositionchemicalinindustry.AndintroducesthepreparationmethodofthePETandsetthePETproductiontechnology.IIndeterminingthePETproductiontechnologyisconductedonthebasisofthematerialbalancecalculations,heatbalancecalculations,themainequipmentselection,processpipingdesign.UseAutoCADsoftwaredrawthemainequipmentfigure,processflowdiagramandworkshoplayoutfigure.Thepaperalsoforwastetreatmentandrecycling,energysavingmeasuresandsafety,preliminaryanalysisontechnicalandeconomicaccountingsimplyexplained.Keywords:polyethyleneterephthalate;PET;AutoCADIII目录第一章绪论..........................................................11.1PET简介.....................................................11.1.2PET结构及性能.........................................31.1.3合成PET的副反应.......................................51.2聚酯的应用...................................................7第二章工艺流程和方案的说明及论证...................................72.1工艺路线的选择..............................................82.1.1合成原理...............................................82.1.2合成路线的选择及流程简述...............................82.1.3合成路线...............................................82.2工艺流程设计...............................................112.2.1连续缩聚..............................................112.2.2间歇缩聚..............................................112.3工艺参数的选择.............................................112.3.1催化剂................................................122.3.2稳定剂................................................122.3.3缩聚反应的温度与时间..................................122.3.4缩聚反应的压力........................................132.3.5搅拌的影响............................................132.3.6其他添加剂............................................142.4影响聚酯反应的因素.........................................152.4.1EG/DMT投料比........................................152.4.2反应温度..............................................152.4.3酯化反应时间..........................................152.4.4缩聚反应釜的真空度....................................162.4.5缩聚反应温度..........................................162.4.6缩聚反应时间..........................................162.5工艺流程图的绘制及说明.....................................162.5.1PET生产工艺流程简图.................................162.5.2生产工艺流程说明......................................17第三章物料衡算....................................................173.1酯交换阶段..................................................183.1.1第一酯交换器R101物料衡算.............................183.1.2第二酯交换器R102物料衡算....
