次氯酸钠氧化去除气田水中COD研究杜国勇

COD杜国勇(西南石油学院化学化工学院)　　　　简要分析了四川气田水的水质状况,提出了电解气田水产生NaClO氧化其中的COD的思路。对温度、停留时间、pH值及NaClO浓度等对气田水中COD氧化的影响进行了实验,得出NaClO浓度是影响COD降解的主要因素。根据实验结果,对气田水中COD中有机物进行了初步分类,并对各类有机物消耗氧化剂的量进行了分析。　COD　气田水　氧化　次氯酸钠　　Cl-COD,Cl-(1.2～110)×103mg/l,NaCl2%～18%,COD100～580mg/l,Cl-/COD。CODCl-1。1　CODCl-　COD,mg/lCl-,×103mg/lCl-/CODA5102650.9B10214137.2C14020142.8D1251296.0E13015115.4F14016114.3G1801688.8H4002152.0I12535280.0J13020153.8K580110189.6COD,。,NaClOCOD,。NaClOCOD,COD,。1　电解气田水产生NaClO的可能性　　,。,,,OH-,OH-。NaClONaCl2%～3%[1],,Cl-NaClO。,,NaClO2。2　NaClO,min351030NaClO,g/l2.53.87.511.0　　注:电解时间增长,气田水温度升高,NaClO分解速率加快。　　2:NaClO,。2　NaClO氧化气田水中COD的条件试验2.1　NaClOCOD60℃,,,(20℃)、(40℃)(60℃),NaClOCOD,3。3　NaClOCOD　,℃20～2339～4158～60COD,mg/l257252259COD,%33.434.732.9NaClO,g/l2.51.6～1.80.1～0.5　　试验条件:反应时间为2h,原水COD值386mg/l,NaClO浓度3.5g/l。　　3:20～60℃,COD;,NaClO,;NaClO,NaClO,NaClOCOD。2.2　NaClOCOD185第32卷　第3期　　　　　　　　　　　　　　　　石油与天然气化工,[1]。4COD。4　NaClOCOD　(:mg/l)0.5～1hCOD2682552702694hCOD27026426626224hCOD266246261259　　试验条件:NaClO浓度3.5g/l,常温。　　4:COD0.5～1h,,NaClOCOD,0.5～1h。[2]。2.3　pHNaClOCODNaClO,pHNaClOCOD,5。5　pHNaClOCODpH35791113COD,mg/l227234224217219223COD,%47.746.148.350.049.548.6　　注:原水COD值为434mg/l。试验条件:常温,反应时间为1h,NaClO浓度为3.1g/l。　　5:pHNaClONaClOCOD。,NaClOCODpH。2.4　NaClOCOD:NaClOCOD,pH、。NaClO3.5g/l,GB8978-1996,NaClO,COD。NaClOCOD(COD434mg/l),,COD6。6　NaClOCODNaClO(g/l)1.5～2.03.1～3.54.1～4.55.1～5.55.8～6.17.2～7.5COD(mg/l)25424617016514363COD(%)41.543.360.861.967.085.56:,COD。CODNaClO。NaClO1.5～3.5g/l,COD41.5%～43%;NaClO4.1～6.1g/l,COD61%～67%;NaClO7.2g/l,COD85%。:,,(1.5g/l)(40%);,(4g/l)(20%～25%);,(7.2g/l)(20%～25%)。,;;。,,,COD。3　结　论　　(1)NaClOCOD。(2)COD,COD,NaClO。1　Dr.CharlesAppliedwatertechnology.p202-2042　..,1987(2):,1964,1996,。。。:2003-01-26;:(上接第184页)3　,..,2001,27(9):27～314　,..,2002,28(1):20～245　DanielA.Crowl,JosephF.Louvar.ChemicalProcessSafetyFundamentalswithApplication.NewJersey:PrenticeHall,19906　PanXuhai,JiangJuncheng,WangZhirong,FengShiyuan.NumericalAnal-ysisofDiffusionProcessofFlammableandToxicGasesDischargingAcci-dent.ProgressinSafetyScienceandTechnology,Beijing:ChemicalIndustryPress,2000,297～3017　,,...2001(6):32～37:,1977,。。:2003-01-20;:2003-04-10;:186次氯酸钠氧化去除气田水中COD研究　　　　　　　　　　　　　　　　　2003ZhangYunqiang(OilExtractionEngineeringTechnologyResearchInstituteofZhongyuanOilField).CHEMICALEN-GINEERINGOFOIL&GAS,VOL.32,NO.3,pp173～175,2003(ISSN1007-3426,INCHINESE)ABSTRACT:ThispaperresearchescorrosionfactorsofHubuzhaiGasField.Throughmanysimulationtests,theeffectoncorrosionofthesefactorsisstudied.Acorrosioninhibitorofgasproductionwellisconfected.Manytestsus-ingthisinhibitorweretakeninthegasfield,andthesetestsprovedthatthisinhibitorhasfamouseffectofpreventcorro-sionongaswell.SUBJECTHEADINGS:gasproductionfield,studyofcorrosion,preventingfromcorrosionTHEMODELSELECTIONOFFLOWMETERANDTHEDEVELOPMENTTENDENCYOFNATURLGASMEASUREZhangHongbing,LiuZhilin,DengYunping(SouthwestPetroleumInstitute).CHEMICALENGINEERINGOFOIL&GAS,VOL.32,NO.3,pp176～177,2003(ISSN1007-3426,INCHINESE)ABSTRACT:Asnaturalgasisahighqualityenergyresourceandchemicalrawmaterial,peoplewidelyattachimportancetotheaccuracyofmeasuringit.Thispaperintro-ducestheadvantageanddisadvantageofseveralflowmetersandhowtochoosesuitableflowmetersunderdifferentcir-cumstancesandthecurrentdevelopmenttendencyofnaturalgasmeasure.Finally,theauthorputsforwardsomesugges-tionsformeasuring.SUBJECTHEADINGS:naturalgasmeasure,flowmeter,selection,developmenttendencyTHECOMPAREOFANALYSISFORHYDROGENSULFIDECONTENTINNATURALGASTangMeng1,WangXiaoqing1,LiZhenyi2,FanHao3(1.RINGT,PetroChinaSouthwestOilandGasfieldCompa-ny;2.ChongqingGasGeologicalResearchInstitute,PetroChinaSouthwestOilandGasfieldCompany;3.MeterStationofPurificationGeneralPlant,PetroChinaSouthwestOilandGasfieldCompany).CHEMICALENGINEERINGOFOIL&GAS,VOL.32,NO.3,pp178～180,2003(ISSN1007-3426,INCHINESE)ABSTRACT:Atpresent,4kindsofChinanationalstandardsandoneindustrialstandardfordeterminingthecontentofhydrogensulfideinnaturalgaswerepublished,Thesestandardsincludethemethodsofidometrictitration,methyleneblue,molybdenumblue,leadacetatereactionrateandoxidativemicrocoulometry.Inordertoexecutethesestandardsbetter,sometestsweremadetocomparethediffer-entmethodsofthestandards.Theresultsareshowingthat,theanalysisresultsaccordwiththerequirementsofprecisionforrelevantstandards,undertherequiredconditionofeachstandard.Thecodenumbersofthesestandardsaregivenasfollows:GB/T11060.1,GB/T11060.2,GB/T11061,GB/T18605.1andSY/T6537.SUBJECTHEADINGS:hydrogensulfide,naturalgas,determination,standard,compareofanalysisRESEARCHONTHEAPPLICATIONOFSIMULA-TIONASSESSMENTINHEALTHANDSAFETYE-VALUATIONWangZhirong,JiangJuncheng,PanXuhai(InstituteofSafetyEngineering,NanjingUniversityofChemicalTech-nology).CHEMICALENGINEERINGOFOIL&GAS,VOL.32,NO.3,pp181～184,2003(ISSN1007-3426,INCHI-NESE)ABSTRACTS:AnewmethodofHealthandSafetyE-valuationisputforwardbasedonthemaincharactersofthedangeroussourcesinpetro-chemicalplants.Inthepaper,researchworkisdoneontheapplicationofsimulationas-sessmentinHealthandSafetyEvaluation,includingas-sumptionsoftheaccidents,simulationmo