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1、CharacteristicsandPreventionofRoadTransportLiquefiedNaturalGas(LNG)AccidentsJunweiZeng,MinWang,YufeiLiu,YongshengQian*SchoolofTrafficandTransportation,LanzhouJiaotongUniversity,Lanzhou730070,China;*E-mail:qianyongsheng@mail.lzjtu.cnKeywords:physicochemicalpropertiesofLNG;accidentcharacteristic
2、s;dangerousgoods;emergencyrelief2LNGroadtransportcharacteristicsAbstract2.1PhysicochemicalpropertiesofLNGBasedoncharacteristicsofroadtransport,thispaperNaturalgaswiththemaincomponentofmethane(CH4)investigatestheessentialroadcondition,stuffcondition,isformedbythedecompositionofburiedorganicmatt
3、er,vehicleconditionandnaturalconditionforroadtransportwhoseaveragemolecularweightis17.3.ThevolumeofLNGItthenputsforwardtheLNGleakagemodelinpercentageofeachcomponentis93.609%formethane,idealstate,andintroducestheDEGADISmodelusedfor4.1154%forethane,1.1973%forpropaneand1.0783%lowdensitygasleakage
4、Characteristicsofdifferentforothers(butane,pentane,nitrogen,carbondioxide,accidentsareanalyzedbasedonthemodelsandetc.).Theboilingpointis-161.9ćandthedensityisemergencyreliefprogramisgiventhereafter.0.772kg/m³undernormaltemperatureandpressureconditions.Withtherelativelystablechemicalproperties,
5、1Introductionnaturalgasiscolorless,odorless,non-toxic,non-[3,4]corrosiveandsoon.TheplacesofnaturalgasoriginofChinaaremainlylocatedinTarim,Qaidam,OrdosandSichuanBasinwithLNGcomesfromnaturalgasbeenacid-removed,water-atotalreserveof26trillionm3,accountingfor87%ofremoved,fractionatedandcondensedat
6、ultralowonshorenaturalgasresourcesofChina.West-Easttemperature.Thevolumepercentageofgasis1/625atpipelinedoesnotopenbeyondwestofXian,Sebei-ultralowtemperature˄-162°C˅andundernormalXiningpipelineislimitedbythehighaltitudeconditions,shippingLNGcannotmeetthelarge-scaleneedsoftheatmosphericpressure
7、.Thecriticaltemperatureis-mainland,andrailtransportandinlandshippingarenot82.42ć.ThedensityofLNGstoredintanksinroadallowedtobecarriersofLNG,allofwhichmakeroadtransportprocessis447kg/m³,whichis612.5~625timestransportthemainsupplymodeofLN
