【英文标准名称】:TestMethodforDeterminationofIndividualComponentsinSparkIgnitionEngineFuelsbyHighResolutionGasChromatography
【原文标准名称】:高分辨气相色谱法测定火花点火发动机燃料中单一成分的试验方法
【标准号】:ASTMD6623-2001
【标准状态】:作废
【国别】:
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:detailedhydrocarbonanalysis;DHA;DHC;gaschromatography;hydrocarbons;IHA;opentubularcolumn;oxygenates;PIANO;PONA;gaschromatograph;gasoline;individualhydrocarbonanalysis;oxygenatedfuels;spark-ignitionenginefuels;detailedhydrocarbon
【摘要】:1.1ProceduresAandB:1.1.1TestProceduresAandBprovideforthedeterminationofindividualhydrocarboncomponentsofspark-ignitionenginefuelsandtheirmixturescontainingoxygenateblends(MTBE,ETBE,ethanol,andsoforth.)withboilingrangesupto225oC.Otherlightliquidhydrocarbonmixturestypicallyencounteredinpetroleumrefiningoperations,suchas,blendingstocks(naphthas,reformates,alkylates,andsoforth.)mayalsobeanalyzed;however,statisticaldatawasobtainedonlywithblendedspark-ignitionenginefuels.1.1.2Basedonthecooperativestudyresults,individualcomponentconcentrationsandprecisionaredeterminedintherangeof0.01toapproximately30%masspercent.Theproceduresmaybeapplicabletohigherandlowerconcentrationsfortheindividualcomponents;however,theusershallverifytheaccuracyiftheproceduresareusedforcomponentswithconcentrationsoutsidethespecifiedranges.1.1.3TestProceduresAandBalsodeterminemethanol,ethanol,t-butanolmethylt-butylether(MTBE),ethylt-butylether(ETBE),t-amyl-methyl-ether(TAME)insparkignitionenginefuelsintheconcentrationrangeof1to30mass%.However,thecooperativestudydataprovidedsufficientstatisticaldataforMTBEinProcedureBonly.1.1.4Althoughamajorityoftheindividualhydrocarbonspresentaredetermined,someco-elutionofcompoundsisencountered.Ifthistestmethodisutilizedtoestimatebulkhydrocarbongroup-typecomposition(PONA)theuserofsuchdatashouldbecautionedthatsomeerrorwillbeencounteredduetoco-elutionandalackofidentificationofallcomponentspresent.Samplescontainingsignificantamountsofolefinicornaphthenic,orboth(forexample,virginnaphthas)constituentsaboveN-octanemayreflectsignificanterrorsinPONAtypegroupings.Basedonthegasolinesamplesintheinterlaboratorycooperativestudy,theseproceduresareapplicabletoconcentrationsofolefinstolessthan25mass%.However,someinterferingcoelutionwiththeolefinsaboveC7ispossible,particularlyifblendingcomponentsortheirhigherboilingcutssuchasthosederivedfromfluidcatalyticcracking(FCC)areanalyzed,andthetotalolefincontentmaynotbeaccurate.AppendixX1ofthistestmethodcomparesresultsofthetestprocedureswithothertestmethodsforselectedcomponents,includingolefins,andseveralgrouptypesforseveralinterlaboratorycooperativestudysamples.Althoughbenzene,tolueneandseveraloxygenatesaredetermined,whendoubtfulastotheanalyticalresultsofthesecomponents,confirmatoryanalysiscanbeobtainedbyusingthespecifictestmethodslistedinthereferencesection.Totalolefinsinthesamplesmaybeobtainedorconfirmed,orboth,ifnecessary,byTestMethodD1319(volume%)orothertestmethods,suchasthosebasedonmultidimentionalPONAtypeofinstruments.1.1.5Ifwaterisorissuspectedofbeingpresent,itsconcentrationmaybedetermined,ifdesired,bytheuseofTestMethodD1744orequivalent.Othercompoundscontainingoxygen,sulfur,nitrogen,andsoforthmayalsobepresent,andmayco-elutewiththehydrocarbons.Ifdeterminationofthesespecificcompoundsisrequired,itisrecommendedthattestmethodsforthesespecificmaterialsbeused,suchasTestMethodsD4815andD5599foroxygenates,andTestMethodD5623forsulfurcompoundsorequivalent.1.2ProcedureC1.2.1TestProcedureCprovidesforthedeterminationofindividualhydrocarboncomponentsofspark-ignitionenginefuelswithboilingrangesupto225oC.Otherlightliquidhydrocarbonmixturestypicallyencounteredinpetroleumrefiningoperations,suchas,blendingstocks(naphthas,reformates,alkylates,andsoforth)mayalsobeanalyzed;however,statisticaldatawasobtainedonlywithblendedspark-ignitionenginefuels.Thetablesrel......
【中国标准分类号】:E31
【国际标准分类号】:71_040_50
【页数】:109P.;A4
【正文语种】: