3万吨每年粗苯精制工艺设计

毕业设计[论文]题目：3万吨每年粗苯精制工艺设计学院：化学与材料工程学院专业：煤炭深加工与利用姓名：学号：指导老师：完成时间：2013年5月27日设计说明粗苯精制工艺，是将粗苯经化学加工转换为气体，液体和固体产物，并将气体和液体产物进一步加工成一系列化学产品地过程.目前粗苯精制工艺过程有：酸洗精制法和加氢精制法.酸洗精制法工艺简单，该法在我国焦化厂得到广泛应用.加氢精制法工艺复杂，对设备材质和自动控制要求高，该法在我国也得到一定地应用.本设计采用酸洗精制对粗苯精制工艺进行了设计计算，着重设计计算了粗苯精制过程地关键设备.主要包括物料衡算，主要塔设备地工艺尺寸计算，并对关键设备进行了机械强度校核.通过物料衡算得到苯每小时产量为4.17t/h；按清晰分割计算得：轻苯进料量为5.796t/h；酸洗反应器进料量为5.723t/h；吹苯塔进料量为5.715t/h；按非清晰分割计算得：纯苯塔进料量为5.4863t/h甲苯塔进料量为1.3125t/h；二甲苯塔进料量为0.5302t/h.通过对关键设备工艺尺寸计算得到：吹苯塔塔高H=27.45m；纯苯塔塔高为17.966m，塔径为1.1m.通过对关键设备机械强度校核得到：纯苯塔质量载荷为7942.18Kg；风载荷：1-1截面为84503.059N·m.关键字：粗苯、精制、苯通过设计计算，得到以下主设备图纸2DesignspecificationCrudebenzolrefiningprocess,isthechemicalprocessingofcrudebenzolisconvertedintoagas,liquidandsolidproducts,andthegasandliquidproductisfurtherprocessedintoaseriesofchemicalproducts.CrudeBenzolcurrentlyrefiningprocessare:Picklingandrefinedmethodofhydrogenation.Picklingrefinedmethodofsimple,butthereareliquidwaste.ThelawinChina'scokeplantiswidelyused.Hydrogenationprocessofcomplex,materialandequipmentforautomaticcontrolrequirements.ThelawinChinahasbeenapplied.Thisdesignusespicklingcrudebenzolrefiningprocessofrefiningadesign,thefocusondesignandcalculationoftheprocessofrefiningcrudebenzolkeyequipment.Includingmaterialbalance,themaintowerofthesizeofequipment,andkeyequipmenttocheckthemechanicalstrength.Getthroughthematerialbalancefortheproductionofbenzene4.17perhour。Calculatedinaccordancewithacleardivision:benzeneintothelightfeedtrafficto5.796。picklingreactorfeedtrafficto5.723。benzenetowerblownthefeedtrafficto5.715。Onnon-clearsegmentationinthecalculation:Refiningbenzenetowerintothefeedtrafficto5.4863toluenetapintofeedtrafficto1.3125。xylenetowerintothefeedtrafficto0.5302.Throughthekeyequipmentofsizecalculated:highwindsbenzenehightowerH=26.35m。Refiningbenzenehightoweras27.45m,TowerDrivefor1.1m.ThroughthemechanicalstrengthofkeyequipmentcheckbyRefiningbenzenetowerloadforthequalityof7942.18Kg。windload:across-sectionof84503.509Nm.Keywords:Crudebenzol、Benzene、Refining2目录设计说明...........................................................................................................................IDesignspecification..........................................................................................................I主要符号说明..................................................................................................................ii引言...................................................................................................................................11设计总论........................................................................................................................21.1概述.....................................................................................................................21.1.1粗苯地主要组分及性质..........................................................................21.1.2粗苯精制产品及用途..............................................................................21.1.3粗苯精制地意义......................................................................................31.2文献综述.............................................................................................................31.3设计任务地依据.................................................................................................31.3.1反应温度..................................................................................................31.3.2硫酸浓度..................................................................................................41.3.3酸化反应时间..........................................................................................41.4主要原材料及公用工程情况.............................................................................42生产流程确定................................................................................................................53生产流程说明................................................................................................................64物料衡算........................................................................................................................74.1初馏塔物料衡算.................................................................................................74.2酸洗反应器物料衡算.........................................................................................84.3吹苯塔物料衡算.................................................................................................84.4纯苯塔物料衡算...............................................................................................104.4.1纯苯塔产品产量核算............................................................................114.4.2吹苯塔产品产量核算............................................................................124.4.3酸洗塔产品产量核算............................................................................144.5甲苯塔物料衡算...............................................................................................154.6二甲苯塔物料衡算...........................................................................................185能量衡算................................................................