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1、年產(chǎn)16萬(wàn)噸甲醇精餾工段設(shè)計(jì)摘要甲醇作為一種用途廣泛的有機(jī)化工產(chǎn)品,醇還能與有機(jī)酸、無(wú)機(jī)酸、氨、苯、一氧化碳、乙炔、金屬鈉、苯胺等作用。即可發(fā)生氧化反應(yīng)、氨化反應(yīng)、酯化反應(yīng)、羰基化反應(yīng)、鹵化反應(yīng)等多種化學(xué)反應(yīng),甲醇生產(chǎn)越來(lái)越受到重視。仔細(xì)研究工藝設(shè)計(jì)任務(wù)書(shū),明確設(shè)計(jì)任務(wù)后,查閱相關(guān)資料,選擇了甲醇精餾的工藝流程。對(duì)工藝流程中的主塔進(jìn)行工藝計(jì)算,即回流比及塔板數(shù)的計(jì)算、精餾塔的塔體工藝尺寸計(jì)算、塔板的主要工藝尺寸的計(jì)算、流體力學(xué)驗(yàn)算、繪制塔板負(fù)荷性能圖,最后需要編寫設(shè)計(jì)說(shuō)明書(shū),并繪制主塔設(shè)備圖。通
2、過(guò)物料衡算,得出了主要的物料流量及塔溫;對(duì)工藝結(jié)構(gòu)進(jìn)行設(shè)計(jì),實(shí)際塔板數(shù)為20塊,每層塔板高度為0.40m,總的塔高數(shù)為19.14m,塔徑為3.2m;接著進(jìn)行了流體力學(xué)驗(yàn)算,并繪制了操作性能圖,結(jié)果表明計(jì)算符合要求;然后對(duì)主要接管和輔助設(shè)備根據(jù)要求進(jìn)行了選擇;其次對(duì)設(shè)計(jì)結(jié)果進(jìn)行了列表;最后繪制了精餾塔設(shè)備圖。通過(guò)這次設(shè)計(jì),進(jìn)一步的鞏固了化工原理課程中的相關(guān)知識(shí),且學(xué)會(huì)了對(duì)化工設(shè)備的設(shè)計(jì),為今后從事化工打下了一定的基礎(chǔ)。關(guān)鍵詞:甲醇;精餾;工藝設(shè)計(jì)TheProcessDesignofSectionA
3、nnualOutputof16TonsofMethanolDistillationAbstract:Methanolasaversatileorganicchemicalproducts,alcoholandalsoorganicacids,inorganicacids,ammonia,benzene,carbonmonoxide,acetylene,metallicsodium,anilineandsoon.Oxidationreactioncanoccur,variouschemicalre
4、actionsamination,esterificationreaction,carbonizationreaction,halogenationsreaction,methanolproductionmoreandmoreattention.Carefulstudyoftheprocessdesigntaskbook,cleardesigntask,accesstorelevantinformation,selectthemethanoldistillationprocess.Themain
5、towerontheprocessforprocesscalculations,namelyrefluxratiocalculationandplatenumber,rectifyingcolumntowerbodysizecalculationprocess,plateofthemaintechnicalsizecalculation,fluidchecking,drawingtrayloadperformancechartFinally,youneedtowritedesignspecifi
6、cations,anddrawthemaintowermap.Wecanobtaintheflowofthemainmaterialofthetowerbythemeansofcalculatingofmaterialandheat.Whenwedesigntheprocessstructure,weshoulduse20piecesoftowerplate,whichhasitsstandards:theheightofeachlayeris0.40m,theheightis19.14m,th
7、etowerdiameteris3.2m;thenweshouldcarryonthefluidmchanicscalculation,anddrawtheperformancechart,andfinallywewillfindthecalculationmeetstherequirements;thenextstepsareasfollowing,firstly,havingaselectionaccordingtotherequirementsofmainpipeandaccessorye
8、quipment,Secondly,listingthedesignresults,finally,drawingtherectificationtowerequipmentWecanfurtherstrengthentherelevantknowledgeofchemicalprinciplescoursesafterthisdesign,andwecanlearnthedesignofchemicalequipment,andthenlayacertainfoundationintheche