Naturalgasiscleanfuelcar.Naturalgasvehicleemissionpollutionismuchlowerthangasoline-fueledcars,donotcontainsulfurandleadintailgas,carbonmonoxideby80%,60%lowerhydrocarbons,nitrogenoxidesby70%.Therefore,manycountrieshavetodevelopnaturalgasvehicleasanimportantmeansofreducingairpollution.
首先与汽油相比,压缩天然气本身就是比较安全的燃料.这表现在:
Firstcomparedwithgasoline,compressednaturalgasfuelitselfisrelativelysafe.Itdisplaysin:
燃点高.天然气燃点在650.c以上,比汽油燃点(427.c)高出223.c,所以与汽油相比不易点燃.
Highflashpoint.Gasignitionpointin650.Thecabove,higherthangasolineignitionpoint(427c)223.C,socomparedwithgasolineisnoteasytoignite.
密度低.与空气的相对密度为0.48,泄漏气体很快在空气中散发,很难形成遇火燃烧的浓度.
Lowdensity.Therelativedensityof0.48,withairleakagegasintheairsoon,itisdifficulttoformwhentheconcentrationofthefireburning.
辛烷值高.可达130,比目前最好的96号汽车辛烷值高得多,济南汽车油改气抗爆性能好.
Highoctanerating.Upto130,higherthanthebestmotoroctanenumber96,jinancaroiltogasantiknockperformanceisgood.
