简介：<正>Inthisresearchwork,threekindsofactivatedbentoniteusedassolidacidcatalystshadbeensynthesizedandstudiedonremovalofolefinsfromthereformateoil.ActivatedbentonitesampleswereanalyzedusingtheBETandpyridine-FTIRmeasurementstoinvestigatetheirphysicalandchemicalproperties.Theresultsshowedthatbothtexturalpropertiesandsurfaceacidityofthebentonitecouldaffectthecatalyticactivity.Amongthecatalystsamples,onekindofbentonitepurchasedfromHubeiwithhighsurfacearea,highporevolumeandmoreacidsitesrevealedhighactivityinremovingolefinsfromthereformate.

简介：汽油的清洁与它的部件有关，properties.All广告汽油在引擎的注射者，吸入阀门和燃烧房间上建立存款，罐头它显著地降低引擎表演和影响用尽煤气的emissions.In这研究，吸入阀门存款(IVD)和燃烧房间存款(电荷耦合器件)从包含aromatics的21v-42v的燃料的燃烧生产了，石蜡的8v-31v被学习了使用de的福特引擎测试，和特征

简介：Thedensityofasphaltwasmeasuredwiththepycnometeranddensitometer.Creeppropertiesoftheasphaltwereinvestigatedwiththebendingbeamrheometerattemperaturesrangingfrom0℃to-36℃.Theasphaltdensitydatausedtocorrelatewiththecreeppropertieswerecalculatedfromtheregressionequationofdensityandtemperature.TheasphaltsampleusedtodeterminethecreeppropertywasagedbythestandardRTFOTtestandthePAVtest.Thetestresultsshowedthattheasphaltdensityhadalinearrelationshipwithtemperaturechanges.Thelogarithmofthecreepstiffnessandtheslopeofthelogarithmofthestiffnessat60secondsalldemonstratedalinearrelationshipwiththedensity,andtheregressioncoefficientofthesedatawasaround0.99.Thecreepstiffnessandtheslopeofthecreepstiffnesscanbecalculatedfromtheasphaltdensityatthesametemperature.

简介：这篇文章为综合盖住一个方法环境地友好的多功能的金属(钙，镁)有antioxidationproperty.These的油酸盐detergents多功能的金属(钙，镁)有antioxidation性质的油酸盐detergents用油可溶的液体抗氧化剂被综合(PPIBP，PPIBTSTBP，并且PPIBPDA)作为反应功能的materials.These，油可溶的液体抗氧化剂有潜力在综合为申请被用作功能的材料其它种s

简介：Inordertostudytheflammabilityandexplosionpropertyofgasesduringthepropaneoxidationtoacrylicacidprocess,theexplosionlimitsandthesafetyoxygencontentofgasesattherecyclegascompressoroutlet,thereactorinlet,andthereactoroutletweretheoreticallycalculatedandexperimentallytested.Finally,theinertlimitwasalsodetermined.Itshowedthatgasesattherecyclegascompressoroutletandthereactoroutletwerenonflammablebasedonthreeindicators:theexplosionlimits,thesafetyoxygencontentandtheinertlimit.TheC3H6andO2contentswerehigheratthereactorinlet,whichmadethemixedgaseseasilyignitable.However,thelargeamountofinertgasessuppressedthepossibilityofexplosioneffectively.Asaconsequence,noexplosionphenomenonwouldhappeninallthreelocations.Butgasesatthereactorinletaremostdangerous,wheremoresupervisionontheconcentrationofgasesandmorestrictcontrolonthetemperatureandpressureshouldbeimplemented.Besidesthis,openflame,hotsurfacesandothersourcesofignitionareprohibitedinworkingspaces.Theexperimentalresultscanbeappliedtosimilarprocessforoxidationofpropane.

简介：四川NeijiangTianke公司与在中国商业示范为从煤碳化在未加工的苯的25kt/a评估的未加工的苯的加氢联合起来构造第一的独立知识产权权利采用了国内技术。

简介：Thecommercialtestprojectratedat5kt/ahexane-1,onwhichPetroChinahastheindependentintellectualpropertyright,isunderconstructionintensivelyattheNo.2ChemicalPlantof