简介:ThekeyscienceandtechnologydevelopmentprojectofSINOPEC—thepilotscalestudyofsyngas-to-ethyleneglycolpackagetechnologyhaspassedtheexpertappraisalsponsoredbytheSINOPECScienceandTechnologyDivision.Thisprojectfacility,whichisjointlydevelopedbytheSINOPECShanghaiPetrochemicalResearchInstitute
简介:StartingJune2011theSINOPECBalingPetrochemicalBranchCompanyhasbeenapplyingitsself-developedoxidationtechnologywithoxygen-enrichedaironthe100kt/acyclohexanoneunit,resultinginsmoothoperationcoupledwitharound14%increaseinproductioncapacity,whiletheoxygenconcentrationinairstreamiscontrolledatlessthan24%,whichisby2%-3%higherthanthenormaloxygencontentinatmosphere.
简介:Bytheendof1998Chinaboasted220refinerieswithatotalcrudeprocessingcapacityof262Mt/a.Theaveragerefinerysizeatthattimewas1.194Mt/a.Refinerieswithprocessingcapacityexceeding5.0Mt/aaccountedforonly21.26%,whilethecapacityofsinglerefiningunitswerealsosmallthatcouldnotconformwiththeeconomyofscale.China'srefiningindustryisfacedwithatoughtaskofstructureadjustment.
简介:OnOctober8,2018,theHualuHengshengChemicalStockCo.,Ltd.(HHCSC)inShandongmadeanannouncementthatallfacilitiesofits0.5Mt/aethyleneglycolunithadbeenoperatingsmoothlyat70%offullload,whilecrankingoutqualityproduct(withthepremiumqualitycomplianceratereaching100%)tosymbolizethattheunitwasenteringatrialproductionstage.
简介:
简介:基于冷模型测试的结果,LPEC与新奇格子类型内幕在一个改革者为FCC催化剂的新生开发了一种技术以便加强在气体和固体之间的接触并且提高在regenerator.Testresults烧效率的焦炭表明了在与格子内幕装备的使流体化的床上的密度变化是相对同类的并且起泡的频率显然在邻近改革者墙的死了的使流体化的地区与明显的改进被减少,并且这台设备能在FCC改革者被用于催化剂的加强的新生。在在精炼厂A的0.8Mt/aRFCCU的这台设备的在工业上的应用显示了改革催化剂的碳含量从0.18%被归结为0.03%,并且烧的焦炭的数量被5%在改革者的烯释相节在改革者和某密度减小的主要的空中与明确的减小增加。
简介:Fordealingwithhigh-salinitywastewaterintherefinery,thehighcostofdrivingheatsourceisthedisadvantageofmulti-effectdistillation(MED)soitisofgreatimportancetoevaluatetheperformanceoflow-temperatureheatsourceforconductingMEDandselecttheoptimaltemperatureforit.BoththeMEDandthelow-temperatureheatsourcesstudiedinthispaperwerefromatypicalrefinerylocatedinnorthwesternChina.Besides,anewmethodologytoevaluateheatsourcesastheoptimalcandidatewasproposedforMEDbasedonthegreysystemtheory.Fiveprocessunits,whichincluded18fluidsoftherefinery,werenamedastheevaluationprojects.Threefactors,whichincludedsafetyeffects,totalcostsandcharacteristicsoflow-temperatureheatsourcesweredeterminedastheevaluationindexes,thevaluesofwhichwereestablishedthroughtheanalyses.Theresultsobtainedthroughthegreycorrelationanalyseshaverevealedthatthegreycorrelationdegreesoftheseunitswere0.661(AVDU),0.732(#1FCCU),0.618(#2FCCU),0.535(#1DCU),and0.572(#2DCU),respectively.Thus,theoptimalheatsourcewasprovidedfrom#1FCCU.Throughfurtheranalysesofthefluidsfrom#1FCCU,thegreycorrelationdegreesofthefluidswere0.597(oilandgasattopoftower),0.714(recycleoilandgas),and0.512(diesel),respectively.Thus,theoptimalheatsourcewastheoilandgasrecyclestream.
简介:Inthisstudy,titaniumdioxidesupportedbymulti-walledcarbonnanotubes(MWCNTs/TiO2)andCr-dopedTiO2supportedbyMWCNTs(MWNTs/Cr-TiO2)weresynthesizedbythesol-gelmethod.Thepreparedsampleswerecharacterizedbytransmissionelectronmicroscopy,X-rayphotoelectronspectroscopy,X-raydiffraction,theBrunauerEmmett-Telleranalysis,andtheRamanspectroscopy.TheoxidationandefficiencyforremovalofSO2inasimulatedfluegaswereinvestigatedexperimentallyinafixed-bedreactor.The15%MWCNTs/Cr-Ti02sampledisplayedexcellentadsorptionproperties,andaSO2removalrateequatingto30.4151mg/gfromthesimulatedfluegascontaining2300μg/gofSO2,8%of02,and5%ofH20wasachievedunderoptimalconditionscoveringatemperatureof333.15K,andaspacevelocityof1275h^-1.TheadsorptionprocesswasenhancedbecauseCrdopingmodifiedtheporestructureandinhibitedthegraingrowthofTiO2.Inaddition,theFreundlichandLangmuirmodelsrevealedthatSO2wasmainlyadsorbedthroughchemicaladsorptiononthesamplesurfaces,andthethermodynamicmodelanalysisindicatedthattheadsorptionwasaspontaneous,exothermic,andentropy-reducingprocess.TheadsorptionkineticsofSO2canbedescribedbythepseudosecond-orderkineticandtheBanghamdynamicsmodels.Thepossiblereactionmechanisminvolvedindesulfurizationprocesswasalsoproposed.