学科分类
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32 个结果
  • 简介:在这篇论文,为提高轻采油的FCC合作催化剂被大音阶的第五音胶化方法准备,并且它击碎催化剂的残余的表演上的效果在结果显示了的CCFFBreactor.The测试被评估液体产品收益显然增加了,在FCC平衡催化剂的表面与干燥气体的co-catalyst.The收益被使妊娠以后,泥浆和焦炭减少了,当柴油机收益改变了slightly.And时残余的crackability被增加;催化剂表面上的焦炭免职的率被减少,与这些结果显示出的热裂开反应inhibited.All合作催化剂能改进酸地点的密度并且改变催化剂酸味,它能支持由在FCC平衡催化剂的表面上扔合作催化剂延长催化剂活动。

  • 标签: FCC 催化剂 催化裂解 石油炼制
  • 简介:Thedegradationpotentialofadiesel-degradingbacteria(HDMP1)isolatedfromtheoil-contaminatedmarineenvironmentwasexploredsystematicallybyanalyzingtheenvironmentalconditionsandsynergisticactionwithotherdiesel-degradingbacteria.TheresultindicatedthatHDMP1wasconfirmedasastrainofHalomonasbythemethodofstrainidentification.And,HDMP1showedgooddieseldegradationperformancewithadieseldegradationrateofupto79.59%after7days.ByanalyzingtheeffectofenvironmentalconditionsonHDMP1,thebestcarbonandnitrogensourceswerefoundtobelactoseandpeptone,respectively,atapHvalueof7.5andasalinityof4g/(100mL).Additionally,thesynergisticeffectofHDMP1combinedwithotherdiesel-degradingbacteriawasanalyzedbyorthogonalexperimentaldesign.TheinoculaofHDMP1,HDMP2,HDMP3andHDMB3wereoptimized,withthebestresultsequatingto0.4%,0.1%,0.4%and0.9%in100mLofMSM,respectively,whilethedegradationrateofdieselwasidentifiedtobe73.5%within5daysinthepresenceofoptimuminocula.

  • 标签: diesel-degrading BACTERIA SYNERGISTIC effect marine environment
  • 简介:Inthispaper,anabinitio,localdensityfunctional(LDF)methodwasusedtoexploretherelationshipbetweenthemolecularpropertiesofadditivesandthelubricatingperformanceofaluminumrollingoil.Thestructuralpropertiesofbutylstearate,dodecanol,docosanol,andmethyldodecanoatewerestudiedaccordingtothedensityfunctionaltheory.Thecalculateddatashowedthattheatomsinoraroundthefunctionalgroupsmightbelikelythereactingsites.Becauseofthedifferentfunctionalgroupsandstructureofesterandalcohol,twotypesofcomplexadditives,dodecanolandbutylstearate,methyldodecanoateandbutylstearate,respectively,werechosenforstudyingtheirtribologicalpropertiesandperformingaluminumcoldrollingexperiments.Thetestresultsagreedwiththecalculatedresultsverywell.Thecomplexester,viz.methyldodecanoateandbutylstearate,hadthebestlubricatingperformancewithafrictioncoefficientof0.0841andapermissive-rollingthicknessof0.040mmascomparedwiththatofdodecanol-butylstearate-baseoilformulation.

  • 标签: 复合添加剂 铝轧制油 润滑性能 分子特性 硬脂酸丁酯 密度泛函理论
  • 简介:Methyldiethanolaminefattyacidesters,viz.methyldiethanolamineoctanoateandmethyldiethanolamineoleate,wereprepared.Theirimpactsonthebiodegradabilityandtribologicalpropertiesofmineralbaseoil400SNwereevaluatedbyatesterforfastevaluatingthebiodegradabilityoflubricantsandbyafour-balltester,respectively.Theresultsshowedthatmethyldiethanolamineoctanoateandmethyldiethanolamineoleatebothcouldmarkedlypromotethebiodegradationoftheoilandimproveditstribologicalproperties.Theimprovementofbiodegradabilitywasattributedtotheenhancedgrowthandquantityofmicrobesbymethyldiethanolaminefattyacidesters.Thewornsurfaceswereanalyzedbyascanningelectronmicroscope(SEM)equippedwithanenergydispersivespectrometer(EDS)andanX-rayphotoelectronspectroscope(XPS).Theresultsindicatedthattheenhancementoffriction-reducingandanti-wearpropertiesofthemineraloilwasattributedtotheformationofcomplicatedboundarylubricationfilmscomposedofspeciessuchasFe2O3,Fe3O4andorganicnitrogen-containingcompoundswithastructureof–C-N-orR-NH2.

  • 标签: BIODEGRADATION wear friction METHYL DIETHANOLAMINE fatty
  • 简介:PurificationoforiginalcrudeglycerolobtainedfrombiodieselproductionwasconductedinalaboratoryscaleequipmentbymeansofacombinedchemicalandphysicaltreatmentmethodbaseduponrepeatedcyclesofacidificationofliquidphasetothedesiredpHvaluebyusing5.85%H3PO4solutionforpHvalueadjustment,andthemixturewaskeptat70℃for60mintomakephaseseparationforobtainingaglycerol-richmiddlephase.Theyieldofcrudeglycerolreached81.2%.Subsequently,uponreactionoftheobtainedglycerolphasewith0.03%ofsodiumoxalateat80℃for30mintheimpurityremovalratewasequalto19.8%.Thefractionboilingbetween164℃and200℃wascollectedbyvacuumdistillationfollowedbydecolorizationwith2%ofactivecarbonat80℃fortwotimestoyieldtheproductglycerolwithanacceptablepurityof98.10%.

  • 标签: 生物柴油 粗甘油 正交试验法 废食用油 纯化 生产
  • 简介:因为高粘性和重oil.The微波技术的高树脂内容,在额外粘滞的原油包含的水的移动是相当困难的在接口的希腊语的第六个字母潜力面对钠acetate.The减少从高粘性的原油为水的分离被介绍,原油的粘性为负责在微波irradiation.The下面的水的加速的分离在样品钠醋酸盐的集中影响,照耀pres

  • 标签: 盐水分离 微波辐射 最佳工艺条件 高粘度原油 无机 粘性
  • 简介:这篇文章为在Yangzi石油化学的公司在1.0Mt/a氢化裂解器升级尾巴油的质量和RN-32V/RHC-1催化剂的第一商业应用集中于氢化裂解技术,它在2008年9月成功地被开始在上面。在氢化裂解单位的启动以后的一个月,评估操作为估计催化剂表演被进行了。技术刻度结果证明RN-32V/RHC-1催化剂举办了高活动,并且产品收益分发是合理的。氢化裂解器能为下游地芳香的生产单位并且乙烯生产联合起来提供丰富的化工物品。

  • 标签: 扬子石化公司 商业应用 加氢裂化工艺 油质量 加氢装置 加氢裂化装置
  • 简介:SINOPECResearchInstituteofPetroleumProcessing(RIPP)hasdevelopedthedieselengineoilAPICJ-4,afterhavingpassedthe9enginetestsrequiredbytherelevantAPIspecificationstofillChina’sgapintheindependentdevelopmentofformulationsfordieselengineoilCJ-4,whichisasuccessfulattemptinbreakingtheforeigncompanies’technicalmonopolyonhigh-gradedieselengineoils.

  • 标签: RESEARCH Institute DIESEL ENGINE specifications
  • 简介:作者在这工业使用了二个普通方法,我。e。“消费系数方法”和“弹性系数趋势方法”,在2010预报精制的油产品需求。通过分析并且比较二预报结果,对在2010的完成的产品油的要求一年将在220~240百万吨的范围,这被投射。另外,从关于总数的担心给产品消费上油在2020超过6亿吨/年,作者提出针对油产品的保存和其他的燃料的申请的建议和措施。

  • 标签: 精制油 石油消费 中国 石油市场
  • 简介:ThepolycrystallinephaseWO3/g-C3N4wassynthesizedunderstirringusingtungstenicacid(H2WO4)andgraphiticcarbonnitride(g-C3N4)asrawmaterials.ThecatalystwascharacterizedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),energydispersivespectroscopy(EDS),theFouriertransforminfraredspectroscopy(FT-IR),andtheBrunauer-Emmett-Telleranalysis(BET).ThepolycrystallinephaseWO3/g-C3N4wasdeterminedbyXRDtechnique.TheoxidativedesulfurizationprocesswasinvestigatedusingWO3/g-C3N4asthecatalyst,30%hydrogenperoxide(H202)astheoxidant,and1-butyl-3-methylimidazoliumtetrafluoroborate([bmim]BF4)ionicliquids(ILs)astheextractant.Theoperatingconditions,includingH2WO4amount,ILdose,H2O2volume,temperature,catalystdosage,andtypesofsulfurcompounds,weresystematicallyresearched.Thedesulfurizationratecouldreach98.46%forremovingdibenzothiophene(DBT)fromthemodeloilunderoptimalreactionconditions.Inaddition,thecatalyticactivitywasslightlydecreasedafterfiverecyclesofcatalysts.Thereactionkineticsanalysisshowsthattheoxidativedesulfurizationsystemwasinaccordwiththefirst-orderreactionkineticsequation.Themechanismofoxidativedesulfurizationwasproposed.

  • 标签: oxidative DESULFURIZATION WO3/g-C3N4 heterogeneous CATALYSIS EXTRACTANT
  • 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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