简介：三角形的matrixing修改了松驰模型方程为合成被建立与催化蒸馏过程，和一种新加速的集中技术平淡被采用。合成上的模拟平淡证明计算数据与试验性的结果同意了很好。

简介：Inthispaperthemodernelectron-opticalequipmentisusedtotranslatetheclearimageofspeed-movingbubblesinbubblingliquidonasievetrayintothedigitalinformationstoredincomputer,andthecomputeraidedimage-processingtechniqueisutillizedtomeasurethebubblesizedistributionsandinterfacialareasundervariousoperatingcondtions.Andthedynamicbehaviorofbubblesintrubulentliquidisanalyzedtheoretically;themechnaismofbubbledeformationandbreakageisexploredonthebasisofKolmogorff'sisotropicturbulencehypothesis;themathematicalmodelforpredictingthegas-liquidinterfacialareaisproposed,Thecomparisonbetweenthesimulatedresultsandtheexperimentaldatashowthatthemodelishigherinaccuracy,simpleinformandconvenientinuse.

简介：Thecorrugatedpackingispronetobreakdowneasily,whichcanaffectthetowerefficiencysubstantially.Itistheinnerenvironmentofthevacuumdistillationtowerincludingthetemperatureandchemicalnatureoffluidthatleadtothepackingdamage.Thetheoreticalanalysisindicatesthatitistheinnermaterialflowofvacuumdistillationtowerthatleadstothevibrationofpacking,whichcanaffectthecorrosionfatigueofpackingsignificantly.Meanwhile,themodalshapeandinherentfrequencyofpackingunderprestresscanbeobtainedbymeansofmathematicalanalysis.Basedonthetwokindsofanalysis,theflowinducedvibrationandcorrosionfatigueareaccountableforthefailureofpacking.

简介：为2-propanol/water/ethanediol/KAc系统的咸包含的引得出的蒸馏列和咸包含的代理人恢复列被NRTL模型和修改罗斯松驰方法模仿。模拟结果证明在蒸汽液体平衡和NRTL参数的关联方法(TDCM)的盐效果的预言对说的系统合适。四个不同蒸馏技术过程被调查；结果证明咸包含的引得出的蒸馏过程是最好的。引得出的蒸馏列的模仿的设计在不同全部的阶段数字的条件下面被执行，喂地点，倒流比率，混合代理人的数量和KAc的集中。结果证明象17个阶段，在第9舞台的一个喂的地点，1.2的倒流比率，和喂的一个混合代理人的如此的因素1.141kmol/h评价，最好可能被适合操作条件。模仿的设计也为恢复咸包含的代理人为列被做。咸包含的引得出的蒸馏的模拟方法在这个工作简单、有效。

简介：Inordertoseparatemethylacetateandmethanolazeotrope,theionicliquid(IL)1,3-dimethylimidazoliumdimethylphosphate([DMIM]DMP)wasusedasthesolvent.TheAspenPlussoftwarewasusedtodesignandoptimizetheextractivedistillationprocess.Undertheoptimizedconditions,themassfractionsofmethylacetateandmethanolwerebothabove99.5%.Comparedwiththedimethylsulfoxide(DMSO)process,the[DMIM]DMPprocesshastheadvantagesofsavingenergyandlowerequipmentinvestmentcost.Theresultshowsthatusing[DMIM]DMPasthesolventtoseparateamethylacetateandmethanolazeotropehasbetterprospectinindustrialapplication.

简介：Monodispersecrosslinkedpoly(chloromethylstyrene-co-divinylbenzene)(poly(CMSt-co-DVB))microsphereswerepreparedbydistillation-precipitationcopolymerizationofchloromethylstyrene(CMSt)anddivinylbenzene(DVB)inneatacetonitrile.Thepolymerparticleshadcleansurfacesduetotheabsenceofanyaddedstabilizer.Thesizeoftheparticlesrangesfrom2.59μmto3.19μmandwithmono-dispersityaround1.002-1.014.Theeffectsofmonomerfeedincopolymerizationonthemicrosphereformationweredescribed.ThepolymermicrosphereswerecharacterizedbySEMandchlorinityelementalanalysis.

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.

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简介：TheDalianInstituteofChemicalPhysics(DICP)ofCAShasdevelopedthetechnologyformanufactureofDMEthroughtwo-stepdehydrationofmethanoland

简介：Thispaperhasstudiedthevapor-liquidequilibrium(VLE)forthesalt-containingextractivedistillationofthe1-propanol/watersystem.BinaryVLEdataweremeasuredforthesystemsof1-propanol(1)/KAc(4),ethanediol(3)/KAc(4),and1-propanol(1)/ethanediol(3),withtheVLEdatacorrelatedwiththeNRTLmodelinordertoobtainthemodelparametersofthesebinarysystems.ThebinaryVLEdatacitedintechnicalliteraturewerecorrelatedtoobtainthemodelparametersforotherbinarysystems.VLEdataofternaryandquaternarysystemspredictedbytheNRTLmodelagreedwellwiththeliteraturedata.TheinfluenceofKAc,ethanediol,andtheKAc/ethanediolmixtureonvolatilitybetween1-propanolandwaterwasinvestigatedrespectively.Testresultsshowedthattheabove-mentionedmaterials(KAc,ethanediol)andtheirmixture(KAcandethanediol)havedifferentinfluenceonthevolatility.Whenx3=0.5,andx4=0.05,theazeotropicpointcanbeeliminated.TheNRTLmodelmethodofsalt-containingVLEissimpleandeffectiveforthepredictionofthesystem’sVLEdata.

简介：ThemoleculartransformationsofcarboxylicacidsinheavyacidicSLcrudebeforeandaftertrueboilingpointdistillationwereexaminedbyultra-highresolutionnegative-ionelectrosprayionization(ESI)Fouriertransformioncyclotronresonancemassspectrometry(FT-ICRMS).Theacidclass(heteroatomnumber),type(znumbers)andcarbonnumberdistributionswerepositivelycharacterized.Itwasfoundoutthatthetotalacidnumber(TAN)ofSLcrudedecreasedaftertrueboilingpointdistillation,andtheabundanceofO2classinmassspectrawasalsofoundtobereducedfrom67.6%to34.5%inSLTBPmixedcrudeasmeasuredbyMSspectra,indicatingtoapotentialcarboxylicaciddecomposition.However,itwasinterestingthatthecarboxylicacidstypedistributioninbothoilswasalmostthesamealthoughtheirrelativeabundanceinSLTBPmixedcrudeturnedtobemuchlower,suggestingthatvariouspetroleumcarboxylicacidtypeshavethesimilarthermaldecompositionreactionbehavior.Furthermore,foreachO2typeofacidsinSLTBPmixedcrude,theabundanceofcarboxylicacidswithcarbonnumberhigherthan35wasreducedgreatly,especiallyforthosewithcarbonnumberhigherthan60,themasspeaksofwhichwerenearlytotallyremoved,indicatingthatthelargecarboxylicacidmoleculesinheavyfractionsdecomposedmoresignificantlybecauseoflongerheatingtimeduringthetrueboilingpointdistillationprocess.Asaresult,thereductionofTANmaybecausedbythethermaldecompositionofcarboxylicacidsespeciallythosewithhighcarbonnumber,suggestingthatquickdistillationormuchlowerpressureisrequiredtoavoidthethermaldecomposition.

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