【英文标准名称】:StandardTestMethodforBoilingPointDistributionofSampleswithResiduesSuchasCrudeOilsandAtmosphericandVacuumResiduesbyHighTemperatureGasChromatography
【原文标准名称】:用高温气相色谱法测定带有类似原油和大气以及真空残留物的样品的沸点分布的标准试验方法
【标准号】:ASTMD7169-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D02.04.0H
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:高温;气相色谱法;气体;大气的;残留物;物理化学法;分配;分析方法;试样;沸点;原油;真空的;试验
【英文主题词】:boilingpointdistribution;crudeoils;cutpointintervals;distillationresidues;lubricants;residues;simulateddistillation
【摘要】:Thedeterminationoftheboilingpointdistributionofcrudeoilsandvacuumresidues,aswellasotherpetroleumfractions,yieldsimportantinformationforrefineryoperation.Theseboilingpointdistributionsprovideinformationastothepotentialmasspercentyieldofproducts.Thistestmethodmayprovideusefulinformationthatcanaidinestablishingoperationalconditionsintherefinery.Knowledgeoftheamountofresidueproducedisimportantindeterminingtheeconomicsoftherefiningprocess.1.1Thistestmethodcoversthedeterminationoftheboilingpointdistributionandcutpointintervalsofcrudeoilsandresiduesbyusinghightemperaturegaschromatography.Theamountofresidue(orsamplerecovery)isdeterminedusinganexternalstandard.1.2Thistestmethodextendstheapplicabilityofsimulateddistillationtosamplesthatdonotelutecompletelyfromthechromatographicsystem.Thistestmethodisusedtodeterminetheboilingpointdistributionthroughatemperatureof720C.Thistemperaturecorrespondstotheelutionofn-C100.1.3Thistestmethodisusedforthedeterminationofboilingpointdistributionofcrudeoils.Thistestmethodusescapillarycolumnswiththinfilms,whichresultsintheincompleteseparationofC4-C8inthepresenceoflargeamountsofcarbondisulfide,andthusyieldsanunreliableboilingpointdistributioncorrespondingtothiselutioninterval.Inaddition,quenchingoftheresponseofthedetectoremployedtohydrocarbonselutingduringcarbondisulfideelution,resultsinunreliablequantitativeanalysisoftheboilingdistributionintheC4-C8region.Sincethedetectordoesnotquantitativelymeasurethecarbondisulfide,itssubtractionfromthesampleusingasolvent-onlyinjectionandcorrectionstothisregionviaquenchingfactors,resultsinanapproximatedeterminationofthenetchromatographicarea.Aseparate,higherresolutiongaschromatograph(GC)analysisofthelightendportionofthesamplemaybenecessaryinordertoobtainamoreaccuratedescriptionoftheboilingpointcurveintheintervalinquestion(see).1.4Thistestmethodisalsodesignedtoobtaintheboilingpointdistributionofotherincompletelyelutingsamplessuchasatmosphericresidues,vacuumresidues,etc.,thatarecharacterizedbythefactthatthesamplecomponentsareresolvedfromthesolvent.1.5Thistestmethodisnotapplicablefortheanalysisofmaterialscontainingaheterogeneouscomponentsuchaspolyestersandpolyolefins.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificwarningstatementsaregiveninSection8.
【中国标准分类号】:Z15
【国际标准分类号】:71_040_50
【页数】:17P.;A4
【正文语种】: