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1、1LiteratureReview:1.1EthyleneoxideEthyleneoxide,alsocalledoxirane,istheorganiccompoundwiththeformulaC2H4O.Thiscolorlessflammablegaswithafaintlysweetodoristhesimplestepoxide,athree-memberedringconsistingoftwocarbonandoneoxygenatom.Itiscommonlyhandledandshippedasarefrigerate
2、dliquid.[1]Itisthechiefprecursortoethyleneglycolandotherhighvolumechemicalsbutisalsousedformedicalsterilization.1.2UsesEthyleneoxideisusedassterilant,althoughtheamountusedforthispurposeisminorcomparedtotheapplicationsinthechemicalindustry.Thegaskillsbacteria(andtheirendosp
3、ores),mold,andfungi.Itisusedtosterilizesubstancesthatwouldbedamagedbyhightemperaturetechniquessuchaspasteurization.Ethyleneoxideiswidelyusedtosterilizethemajorityofmedicalsuppliessuchasbandages,sutures,andsurgicalimplementsinatraditionalchambersterilizationmethod,whereacha
4、mberisfloodedwithamixtureofethyleneoxideandothergasesthatarelateraerated.Themorerecentgasdiffusionmethoddevelopedin1967reliesonabagthatwrapstheelementstobesterilizedandservesasamini-chamberinordertominimizegasconsumptionandmaketheprocesseconomicallyfeasibleforsmallloads.Ot
5、hernamesforthisalternativemethodforsmallloadsaretheAnprolenemethod,bagsterilizationmethodormicro-dosesterilizationmethod.2Straightmatter:2.1QuestionEthyleneoxideisproducedbyoxidationofethylenewithoxygenatcirca250°Coveracatalystcomprisingmetallicsilversupportedonalumina[4].
6、Typically,promoterssuchaschloridearealsoincluded.Pressuresusedareintheregionof1-2MPa.Theoverallchemicalequationis:r17H2C=CH2+6O2---→6C2H4O+2CO2+2H2OAsidereactionisreactatthesametime:r2C2H4+3O2---→2CO2+2H2OThereisareactor.Theflowoffeedmaterialis1000mole/handthereis10%Ethyle
7、newithmolefractioninthefeedmaterial.TheconversionrateofEthyleneis25%.TherateofthechoiceofEthylenegenerateproductis80%.Pleasecalculatecomponentsandflowofthematerialinthereactor’soutput.2.2Solution:ComponentC2H4O2N2C2H4OCO2H2ONumber123456Figure1Numberofthecomponentγ,φ2F1=100
8、0mol/hx11,x12,x13F2x21,x22,x23’x24,x25,x26r1,r2x11=0.1α=0.26581φ=0.8γ1=0.25ReactorFigure2
