超临界水氧化技术张敏华

WATERPURIFICATIONTECHNOLOGYVol.24No.62005(天津大学石油技术开发中心,绿色合成与转化教育部重点实验室,天津300072),,,,,,,SupercriticalWaterOxidationTechnologyZhangMinhuaGeJianpingWangJingdong(R&DCenterforPetrochemicalTechnique,KeyLaboratoryforGreenChemicalTechnology,TianjinUniversity,Tianjin300072China)AbstractSupercriticalwateroxidation(SCWO)isanewandpromisingenvironmentalprotectiontechniqueforultimatedestructionorganiccompds,whichusessupercriticalwaterasreactionmedium.Thisarticleprovidesanoverviewofthecharacteristicofsupercriticalwater,fundamentalprinciple,processflowofSCWO.TheexistingproblemofSCWOsuchasmaterialcorrosionandsaltprecipitationwerediscussedandpossiblesolutionswereanalyzed.AtlasttheprospectforthedeveolpmentofSCWOwasalsoexpounded.Keywordssupercriticalwateroxidationcorrosionsaltprecipitation(SCWO),,80Modell[1],,[2~5];,,,1(374,22.1Mpa),,,,,,,,,,1:1水的不同状态的物理性质比较[6]T/25400400P/MPa0.125~500.1/kgm3998170~5800.3/MPaS0.893~71020.0278.53~101pKw14.011.9~19.4,,,,238Vol.24No.62005,(),[7],CO2H2ON2,,O2H2O2O2(R)(HO2);H2O2(HO)RH+O2R+HO2(1)RH+HO2R+H2O2(2)H2O2+M2HO(3)M(HO),RH+HOR+H2O(4)(R),R+O2ROO(5)ROO+RHROOH+R(6),,CO2(HO)(HO2)H,H[3]:(1)(99%),,CO2H2ON2(2),(3),,1min,(4),(5),,:,Modell1,,1SCWO7:3,[8],,,3.1,,,;,,,,,:,,,,[9]::375.8,()[10]3.2,(1~100mg/L),,,,,3.3,39Vol.24No.620054,,,,,,,,:4.1,,,YukihikoMatsumura[11~12],400,25Mpa,,,:,,O239%65%,JianliYu[13],CuO/A12O3,CO2,,CuO/A12O3,CuOMnO2TiO2,,CuOCuO,100hJianliYu[14],,,,CuO/ZnO/CoOCuO/A12O3MnO2TiO24.2,,,,;,,,,[15][16],[17],[18],,,,[19]6,1Cr18Ni9Ti316U2SAF2507Sanicr028Ni825,,Sanicr028Ni825,1Cr18Ni9Ti4.3,,Na2CO3;,Na2CO3,Na2CO3Na2CO3,2Na2CO311.5kcal/molNa2CO32.44kcal/mol,10.4kcal/mol7.5kcal/mol,,Na2CO3Na2CO3,,Na2CO3,Na2CO3[20]G.LeeT.Nunoura[21]NaOH2,,23.8910-3and5.3103mol/L(H2O2),NaOH2-,H2O2NaOHNaOH(1,4,,2,4)2-:NaOH2-540Vol.24No.62005,1955Modal950L,10,1994Texas20014,Texas,9.8[22],,[23],300;;650;;,,10%,23MPa(),,,,,1ModellM.Processingmethodsfortheoxidationoforganicsinsupercriticalwater[P],U.S.Patent.4338199,1982762Baiker,Superfluidsinheterogeneouscatalysis[J].Chem.Rev.1999,(99):453~4733Savage,PhillipE.Heterogeneouscatalysisinsupercriticalwater[J].CatalysisToday2000,(62):167~1734Hauthal,WernerH.Advanceswithsupercriticalfluids[review][J].Chemosphere2001,(43):123~1355P.E.Savage,Organicchemicalreactionsinsupercriticalwater[J].Chem.Rev.1999(99):603~6216PetraKrammer,SabineMittelstabt,HerbertVogel,Investigationthesymthesispotentialinsupercriticalwater[J],Chemicalengineeringtechnology,1999(22):126~1307,,(SCWO)[J]..2002,20(4):21~268PeterKritzer,EckhardDinjusAnassessmentofsupercriticalwateroxidation(SCWO)Existingproblems,possiblesolutionsandnewreactorconcepts[J].ChemicalEngineeringJournal,2001,(83):207~2149PeterKritzerJ.Corrosioninhightemperatureandsupercriticalwaterandaqueoussolutions:areview[J].J.ofSupercriticalFluids,2004,29:1~2910TinaM.Hayward,IgorM.Svishchev,RameshC.Makhija,Stainlesssteelflowreactorforsupercriticalwateroxidation:corrosiontests[J],J.ofSupercriticalFluids,2003,(27):275~28111YukihikoMatsumura,TaroUrase,KazuoYamamoto,TeppeiNunoura,Carboncatalyzedsupercriticalwateroxidationofphenol[J].JournalofSupercriticalFluids,2002(22):149~15612T.Nunoura,G.H.Lee,Y.Matsumura,K.YamamotoModelingofsupercriticalwateroxidationofphenolcatalyzedbyactivatedcarbon[J].ChemicalEngineeringScience,2002,(57):3061~307113JianliYu,PhillipE.Savage,PhenoloxidationoverCuO/A12O3insupercriticalwater[J].AppliedCatalysisB:Environmental,2000(28):275~28814JianliYu,PhillipE.SavageKineticofMnO2catalyedaceticacidoxidationinsupercriticalwater[J].Ind.Eng.Chem.Res,2000,39:4014~401915,,.[J].20034(2):41~4316..:98241717.9,1998.10.2217..:00137125.8,2000.12.3018..:01226906.9,2001.06.0819,.[J]..2001,22(5)187~19020PoongunranMuthukumaran,RamB.Gupta.Sodiumcarbonateassistedsupercriticalwateroxidationofchlorinatedwaste[J].Ind.Eng.Chem.Res,2000,39:4555~456321G.Lee,T.Nunoura,Y.Matsumura,K.YamamotoComparisonoftheeffectsoftheadditionofNaOHonthedecompositionof2chlorophenolandphenolinsupercriticalwaterandundersupercriticalwateroxidationconditions[J].JournalofSupercriticalFluids,2002(24):239~25022Griffith,JanesW.Raymond,DennisH,Thefirstcommercialsupercriticalwateroxidationsludgeprocessingplant[J].WasteManagement,2002(22):453~45923CoceroMJ,SanzmTF,Studyofalternativesforthedesignofamobileunitforwastewatertreatmentbysupercriticalwateroxidation[J].ChemTechBio,2001,76(3):257~264:2005120:,1963,,,,:02227406583,Email:[e-mail].41