年产8万吨丙烯腈废水处理工段

1齐齐哈尔大学毕业设计（论文）题目年产8万吨丙烯腈废水处理工段的初步设计学院化学与化学工程学院专业班级化工084班学生姓名指导教师成绩2012年5月23日齐齐哈尔大学毕业设计（论文）I摘要本设计完成了年产8万吨丙烯腈废水处理工段的初步设计。首先，说明书简单介绍了产品丙烯腈的意义与作用以及在国内外的发展现状。近年来随着丙烯腈在国内外需求量的攀升，极大的推动了丙烯腈的生产，但是，在丙烯腈生产过程中的污染问题也在日益凸显，尤其是在丙烯腈的合成和精制车间,将会产生大量含有氢氰酸、低聚物以及氰化物的高浓度有毒物质的废水，根据废水中有毒物质的沸点不同，在工艺选择上，通过查阅相关资料和文献，确定了用四效蒸发—生物降解法对有毒物质进行浓缩和降解。根据以往生产资料作为车间设计的经验数据，对工艺进行了大量的计算，包括物料衡算、热量衡算；并对主要的设备进行了Aspen模拟和计算选型。最后用AutoCAD绘制了带控制点的工艺流程图、主要设备图、以及用手绘制车间平立面布置图。关键词：丙烯腈；废水；有毒物质；Aspen；工艺路线齐齐哈尔大学毕业设计（论文）IIAbstractInthedesign,thepreliminarydesignoftheeightythousandtons/yearacrylonitrilewastewatertreatmentsectionwascompleted.Firstofall,thesignificanceandfunctionsofacrylonitrileandthedevelopmentofthesituationathomeandabroadwereintroduced.Inrecentyears,acrylonitrileriseinthedomesticandforeign,Promotetheproductionofacrylonitrile.Atthesametime,Pollutionproblemsarealsobecomingincreasinglyprominentintheproductionofacrylonitrileprocess.Especiallyinthesynthesisandpurificationworkshopofacrylonitrile.Intheprocesswillproducealargenumberoftoxicsubstanceswastewatersuchashydrogencyanideandacetonitrile.Accordingtothedifferenceofboilingpointoftoxicsubstancesinthewastewater.Inthetechnologychoice,Throughtheaccessrelevantinformationandliterature.Toxicsubstancesconcentrateanddegradatewithfour-effectevaporation-thebiodegradation,Basedonthepreviousinformation,theplantdesignwasdesignedbyempiricaldata,hecontentoftheprocess,Includingmaterialbalanceandheatbalance.AndthemajorequipmentwassimulatedbyAspenandcalculatedselection.LastdrawthemainequipmentfigurewithAutoCADandflowchartwithcontrolpointplanandtheprocessoftheworkshoplayoutwasdrawnbyhand.Keywords:Acrylonitrile;Wastewater;Toxicsubstances;Aspen;Processroute齐齐哈尔大学毕业设计（论文）III目录摘要...........................................................................................................................................IAbstract.....................................................................................................................................II第1章总论............................................................................................................................11.1概述................................................................................................................................11.1.1产品的意义与作用.................................................................................................11.1.2国内外的现状及发展前景.....................................................................................11.1.3产品的性质和特点.................................................................................................21.1.4生产方法的概述.....................................................................................................21.1.5处理工艺概述.........................................................................................................31.2设计依据........................................................................................................................41.3厂址选择........................................................................................................................51.3.1厂址选择的重要性.................................................................................................51.3.2厂址选择的基本要求.............................................................................................51.3.3本次厂址选择.........................................................................................................61.4设计规模与生产制度....................................................................................................71.4.1设计规模.................................................................................................................71.4.2生产制度.................................................................................................................71.5原料及产品规格................................................................................................................81.5.1主要原料规格及技术指标.....................................................................................81.5.2产品规格.................................................................................................................81.6经济核算表......................................................................................................................8第2章工艺设计与计算......................................................................................................102.1工艺原理......................................................................................................................102.2工艺路线的选择..........................................................................................................102.3工艺流程简述..............................................................................................................112.3.1工艺流程示意图......................................................................错误!未定义书签。2.3.2工艺流程简述.......................................................................................................122.4工艺参数.....................................................................................