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1、设计说明稳定汽油吸收炼油厂催化裂化产生的富气，本设计任务是富气年处理量为10万吨，关键组分丙烯的吸收分率大于等于94%。此吸收属于物理吸收法。采用常规逆流操作流程，见附图1。填料塔设备见附图2，带控制点的流程图见附图3。设计计算的大致步骤如下：首先，据富气处理量及关键组分的吸收分率，求出塔顶尾气的量为301.96936，吸收剂用量865.4及塔底吸收液的量1080.43，因进出物料吸收和释放的能量没有达到平衡，所以格外凝聚根据设计需要一个热负荷为换热器。再据富气及吸收剂的特性选择合适的填料（种类、材质、规格），该设计选取了直径的拉西环填料（乱堆
2、填料），由此求取塔径及填料层高度。再由吸收条件富气进料温度，塔顶出料温度为，操作压力为(绝),根据设计的要求和经济的合理性，选择合适的钢号——筒体和封头都选用。其次，塔部构件及附属构件的设计与选取：液体分布器、液体再分布器、塔底支承板、塔顶压板、人孔、泵。再次，各种接管的求取及法兰规格的查取，裙座、封头的设计求算等。即完成设计。最后，整体论证该塔的可行性及经济价值。关键词：C2C3乱堆泵DesignelucidationStablegasabsorptionrefineryFCCproducesrichgas,thisdesigntaskisr
3、ichgasfor10milliontonsperyear,keycomponentsofpropyleneabsorptionpointsrategreaterthanorequalto94%.Thisabsorbingbelongtophysicalabsorptionmethod.Theconventionalcounter-currentoperationflow,seefigure1.Packedtowerequipmentcontrol,toseefigure2flowchartseesattachedfigure3.Designc
4、alculationroughlystepsasfollows:Firstofall,accordingtorichgasproductivityandkeycomponentsabsorptionpointsoutthetoprate,theamountofexhaustgas301.96936,absorbagentfor865.4andtheamountofthetowerbottomabsorbingliquid,because1080.43andmaterialabsorbandreleaseenergydidnotreachbala
5、nce,soparticularlycondensedaccordingtodesignneedsaheatloadforheatexchanger.Thenaccordingtotherichgasandabsorbentcharacteristicschooseappropriatepacking(type,materialqualitative,specifications),thisdesignselectedthediameterraschingringfiller(heapspacking),thusderivingtowerdia
6、meterand7%theheight.Againbyabsorptionconditionsrichgasdischargeincomingtemperature,temperature,towerforoperatingpressurerejects),for(accordingtothedesignrequirementsandeconomicrationality,chooseappropriateGangHao-cylinderandsealingheadchooses.Secondly,towerinternalsandsubsid
7、iarycomponentdesignandselection:liquiddistributor,liquidtodistributorandbottomplate,columntopclips,manhole,pump.Again,allsortsofoverderivingandflangespecificationsofcollect,skirtseat,sealingheaddesigncalculate,etc.Designiscompleted.Finally,thefeasibilityofthetower'soverallar
8、gumentandeconomicvalue.Keywords:C2C3heapspump目录设计说明I主要符号说明iii引言11正文21.1设计题目
