×Nmd粗苯焦化厂回收车间工艺毕业设计（完整版）(文档可以直接使用，也可根据实际需要修改使用,可编辑欢迎下载）本科生毕业设计说明书题目：4.7×105Nm3/d粗苯焦化厂回收车间工艺设计学生姓名：学号：专业：化学工程与工艺班级：指导教师：摘要本设计主要是对粗苯回收工段的各项参数进行设计及计算。从终冷工段来的的粗煤气经过洗苯塔，管式炉，再生器，脱苯塔等一系列设备后，得到净化后的煤气和循环所用的贫油。净化后的煤气主要是进入下一工段，还有部分供给管式炉,用于对于富油的加热；而再生后的贫油则用于整个系统的循环使用。粗苯回收工艺中最常用的方法是洗油吸收法，因为其工艺简单，经济可靠。同时，随着科学技术的发展和进步，粗苯工艺已得到很好的完善，洗油吸收法发展到现在，已经可以在常压下操作，而且其吸收率也非常高，一般在93％～95％之间。本设计的粗煤气经终冷后进入洗苯塔，经过洗苯塔后，煤气得到净化，而贫油经过洗苯塔后变成富油，富油经管式炉加热，再生器再生，脱苯塔脱苯，后又可以在系统中进行循环。设计中主要是围绕物质的物料衡算，热量衡算等进行的，而设备的选型及工艺条件则可参照经验值。关键词：粗煤气；粗苯回收；富油；物料衡算；热量衡算AbstractThisdesignmainlyforbenzenerecoverysectionofthedesignparametersandcalculation.Fromthefinalcoolingsectiontothegasthroughthewashingofcrudebenzol,tubefurnace,regenerator,benzenetoweroffafteraseriesofmajorequipment,getpurifiedgasandrecyclingusedoil-poor.Afterpurificationthegasismainlyintothenextsteps,andsomesupplytubefurnaceforheatingoil-richThisdesignmainlyforbenzenerecoverysectionofthedesignparametersandcalculation,throughregeneratedleanoilisrecycledfortheentiresystem.CrudeBenzolrecoveryprocessmostcommonlyusedmethodiswashingtheoilabsorptionmethod,becauseprocessissimple,economicalandreliable.Meanwhile,withthedevelopmentandprogressofscienceandtechnology,benzeneprocesshasbeenverygoodsound,washoilabsorptionofprogress,alreadyoperatingatatmosphericpressure,anditsabsorptionrateisveryhigh,generally93%～95%.Thedesignofthecrudegasbytheendofthecoldintothewashafterbenzol,benzolafterwashing,thegastopurifythebenzenetowerleanafterwashingthroughintotheoil-rich,oil-richadministeredbythefurnaceheatingtheregenerator,offbenzenetowerremovalofbenzene,thenitcanloopinthesystem.Designismainlyaroundthematerialmassbalance,heatbalance,etc,whiletheequipmentselectionandprocessconditionsmaybethevalueofthelightofexperience.Thisdesignmainlyforbenzenerecoverysectionofthedesignparametersandcalculation.Fromthefinalcoolingsectiontothegasthroughthewashingofcrudebenzol,tubefurnace,regenerator,benzenetoweroffafteraseriesofmajorequipment,getpurifiedgasandr