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袁孝竞 高励成 何 杰 金 明 杨宏涛(,300072),:1818L.J.Thenard[1]19,,,,H2O245%,,H2O2,,H2O2240t/a(100%H2O2)[2],62t/a(27.5%H2O2)3%98%,35%,50%,70%90%,[3],,1,:(1);(2)pH,;(3)10,2.3;(4),,;(5),,H2O2,,,,;(6),,;(7)320380nm,H2O28%()H2O2,,52%,52%,8%,40%,,,,,26mol%,1[1]226mol%[4]221999271122,150.2100,50.2,90%()100%(),100%,,,H2O2,H2O2,,20%30%,,,,,,,,3Sulzer[5],50%,,3SulzerH2O280%,H2O223袁孝竞等 过氧化氢及其精馏沈缩0.61.6MPa,,,,,,H2O20.1%,,,,25%35%,3,,,,,[6]8.4m,,,,,,,,250Y50#,,,,,19982t(50%H2O2),,35024%,50%,70%4(1),,,(2)(3),,,1WCSchumb,CNSetterfield,RLWentworth.Hy-drogenPeroxide.NewYork:ReinholdPublishingCo,1995.2.,,,1997.3EncycolpediaofChemicalTechnology,13:12.4Ullimann'sEncyclopediaofIndustrialChemistry,A13:443.5JLQuenot,FPprtmann.SulzerTechnicalReview,1997,79[2]:24.6,.,1995,23[3]:5.241999271Thehydrodynamicsofanewcompoundtray-JetCoflowPackingTray(JCPT)arestudiedona1200mmcolumnwithair-watersystem.Itsmasstransferperformanceisinvestigatedona200mmexperimentalinstrumentwithethanol-watersystemalso.Correlationsforcalculatingpressuredrop,weeping,entrainmentflowratesandliquidliftupinasinglecapofthisdistillationtrayareobtainedundervariousgasandliquidloadsforindustrialdesign,andcomparisonsoftrayhydraulicparametersandmasstransferperformancearemadebetweenJCPTandNVST.JCPTisbetterinperformancethanNVSTbecauseofitslowpressuredrop,largeoperatingrangeandhighercapacityandefficiency.Itcanbewidelyusedinchemicalandpetrochemicalindustries.Keywords:JetCoflowPackingTray,hydrodynamics,masstransferperformanceStudyonSurfaceModificationofPolypropylenePlateCorrugatedPackingZhangJin(Dept.ofChem.andChem.Eng.,ShaanxiNormalUniversity,Xian710062)WangLi(Dept.ofChem.Eng.,XianJiaotongUniversity)Theliquidchemicalmethodwasappliedtomodifythesurfaceofpolypropyleneplatecorrugatedpackingandtheperformancetestwasgiventothemodifiedpacking.Theresultsshowedthatinthemodifiedpacking,thesurfacecoarsedegreewasincreased,someoxygenpolargroupsweredemonstrat-ed,thewatercontactanglewasdecreasedfrom88to45,thecriticalsurfacetensionwasraisedfrom2810-3N/mto5510-3N/mandgastotaltransferunitnumberwasincreasedby24%ontheaver-age.Keywords:towerpacking,polypropylenepacking,surfacemodificationConcentrationofHydrogenPeroxidebyDistillationYuanXiaojing,GaoLicheng,HeJie,JinMing,YangHongtao(TianjinUniversityModernPackedTowerTechnologyCompany,Tianjin300072)Hydrogenperoxideiseasytodecompoundandmaycausesafetyproblems.Duetothesecharacter-istics,thispaperintroducesanenergysavingandsafedistillationflowsheetandahighefficiencypackeddistillationcolumn.Keywords:hydrogenperoxide,concentration,packedcolumn,packing2CHEMICALENGINEERING(CHINA)Vol.27,No.1,1999