简介：以固体超强酸S2O82-/ZrO2-SiO2作催化剂,用柠檬酸和正丁醇合成了柠檬酸三丁酯.考察了影响酯化反应的主要因素,确定了该酯化反应的最佳条件:柠檬酸用量为0.1mol,正丁醇与柠檬酸的摩尔比为4.8:1,催化剂用量(以柠檬酸质量计)1.4%,130～140℃下反应3.5h.此条件下柠檬酸的酯化率为95.1%.催化剂易与产物分离,再生后可重复使用.

简介：SZorbadsorptivedesulfurizationtechnologyisofgreatsignificanceontheproductionofcleangasolineinChina,buttheformationofZn2SiO4duringtheoperationinsorbentswouldbringforthnegativeimpactsonthedesulfurizationperformanceandthestabilityoftheprocessingunit.Byusingthein-situTPO,XRD,andIRtechniquestostudythemechanismofZn2SiO4formationunderoperatingconditions,itwasfoundthatthecoexistenceofacidandhydrothermalconditionscouldacceleratetheformationofZn2SiO4.Moreover,thestudyofZn2SiO4inhibitionmethodindicatedthatthedecreaseofoxygenconcentrationinregenerationgaswouldinhibittherateofZn2SiO4formation,andtheregenerationofZnSwouldtakeplaceinamildregenerationcondition.

简介：乌兹别克哈乌扎克和康德姆气田属于世界上典型的高含硫气田，试气作业中对高含H2S气井井控安全作业、硫化氢防护和设备防硫有着很高的要求。通过对硫化氢气体的成因、性质、危害的研究分析，总结出一整套安全防护技术措施。达到了降低施工风险、减少危害、延长设备使用寿命、有效控制硫化氢和保证安全施工的目的。对国内外其它高含硫气田试气作业也会起到借鉴作用。

简介：AninnovativeapproachtoH2Scapturehasbeendevelopedusingseveralmetal-basedionicliquids([Bmim]Cl·CuCl2,[Bmim]Cl·FeCl3,[Bmim]Cl·ZnCl2,[Bmim]Br·CuCl2,and[Bmim]Br·FeCl3)immobilizedonthesol-gelderivedsilica,whichissuperiortopurelyviscousionicliquidwithacruciallimitofhightemperature,lowmasstransferrate,andmassloss.TheadsorbentswerecharacterizedbytheFouriertransforminfraredspectrometer,transmissionelectronmicroscope,N2adsorption/desorption,X-rayphotoelectronspectroscopy,andthermalanalysistechniques.TheeffectsofthemetalandhalogeninIL,theloadingamountofIL,andtheadsorptiontemperaturewerestudiedbydynamicadsorptionexperimentsatagasflowrateof100mL/min.TheH2Sadsorptionresultshaveshowedthattheoptimaladsorbentandadsorptiontemperatureare5%[Bmim]Cl·CuCl2/silicageland20-50℃,respectively.H2Scanbecapturedandoxidizedtoelementalsulfur,and[Bmim]Cl·CuCl2/silicagelcanbereadilyregeneratedbyair.TheexcellentefficiencyofH2Sremovalmaybeattributedtotheformationofnano-scaledandhigh-concentration[Bmim]Cl·CuCl2confinedinsilicagel,indicatingthattheimmobilizationof[Bmim]Cl·CuCl2onthesol-gelderivedsilicacanbeusedforH2Sremovalpromisingly.

简介：本文梳理回顾了我国1号、2号、3号喷气燃料标准的制修订背景和过程,分析比较了不同版本标准在检验项目、技术指标设置、文本和编排方式等方面的变化。喷气燃料的质量要求高,生产要求非常严格,检验项目也比汽、柴油更全面[1-7]。由于飞机飞行的特殊性,喷气燃料必须具备良好的使用性能和可靠的安全性。

简介：以2，3－二氯萘醌与氨气为原料，甲醇作溶剂，制备了2－氨基－3－氯－1，4－茶醌。考察了反应条件对产品收率的影响，得到最件工艺条件：在二氯萘醌用量为0．1mol，氨与二氯萘醌的物质的量比为6，氨甲醇溶液含量15％～17％，反应温度20～25℃，反应时间4h，产品收率可达96％。

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简介：OnDecember27,2013thelastoneofprocessunits–theisomerizationunitinthe600kt/apara-xyleneprojectwasputonstreamattheHainanRefiningandChemicalCompanyatthefirstattempttodelivermassiveparaxylene

简介：TheS-RHTtechnologyisdevelopedbyFRIPPforresiduehydrotreatinginthefixedbedinordertoprocessthehighsulfurcrudeandincreasetheyieldoflightdistillates.Thetechnologycanbeusedfortreatingvariouskindsofatmosphericresidues(AR)orvacuumresidues(VR)withatotalmetalcontentlessthan150ppmundertheoperatingconditionsofatemperaturerangingfrom360-410℃,ahydrogenpartialpressureof14-15MPa,aLHSVof0.20-0.30h-1andahydrogentooilratioof700-1000.AcertainamountoflightproductscanbeobtainedandthehydrotreatedatmosphericresiduecanfullymeettheneedsforthefeedstocktoRFCCorablendingfeedstocktoFCC.BasedontheS-RHTtechnology,a2Mt/aresiduehydrotreatingunithasbeenconstructedandsuccessfullystartedupatMaomingPetrochemicalCompanybytheendof1999.

简介：根据JCW(2007年8月9日)，中国自称拥有5.4的一个全部的甲醇生产能力在2005的Mt/a和在2006的10Mt/a的一个全部的甲醇能力。与中国的快发展“s甲醇工业，包括存在单位的全部的甲醇能力，在建设中的单位和计划草根甲醇单位将到达60Mt/一旁边在2015的2010和70Mt/a。

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简介：短短几个月时间，曾经乱堆乱放的垃圾废料以及杂乱无章的库房、工具柜、办公桌悄然退出了枣庄27站的视线，取而代之的是干净、整洁。

简介：ThePetroChina’smeetingonappraisalof'TMPtechnologyfortwo-zoneriserFCCformaximizationofpropyleneyieldwhilepayingattentiontolightdistillateproduction'washeld

简介：Itislearnedfromthe2013SummitForumonStrategicDevelopmentofCoal-to-NaturalGasinChinathattheChinaSedinEngineeringCompany,Ltd.hasdevelopedwithindependentintellectualpropertyrightstwoexperimentalfurnacesforpressurizedgasificationofcrushedcoal,5min

简介：Thelargemethanolsynthesistowerindependentlydevel-opedbyHangzhouLindaChemicalTechnologyEngineer-ingCompanyaftersigningacontractinApril2008willbeappliedatthe600kt/amethanolprojectatNinxiaBaota

简介：The30-kt/aPXdemonstrationunitjointlydevelopedbySINOPECYangziPetrochemicalCompany,SPECandRIPPhasimplementedalltestitemsafterhavingsuccessfullysettingupitslastwing-theadsorptiveseparationtechnology.TherebySINOPEChasbecomeamajorpetrochemicalcompanycapableofprovidingpackagedaro

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简介：Anovelhighgravitymulti-concentriccylinderelectrodes-rotatingbed(MCCE-RB)wasdevelopedfortheelectrocatalyticdegradationofphenolwastewaterinordertoenhancethemasstransferwiththeself-madeRuO2-IrO2-SnO2/Tianodes.Theinfluencesofelectriccurrentdensity,inletliquidcirculationflowrate,highgravityfactor,sodiumchlorideconcentration,andinitialpHvalueonphenoldegradationefficiencywereinvestigated,withtheoptimaloperatingconditionsdetermined.Theresultsshowedthatundertheoptimaloperatingconditionscoveringacurrentdensityof35mA/cm^2,aninletliquidcirculationflowrateof48L/h,ahighgravityfactorof20,asodiumchlorideconcentrationof8.5g/L,aninitialpHvalueof6.5,areactiontimeof100min,andaninitialphenolconcentrationof500mg/L,theefficiencyforremovalofphenolreached99.7%,whichwasimprovedby10.4%ascomparedtothatachievedinthenormalgravityfield.Thetendencyregardingthechangeinefficiencyforremovalofphenol,totalorganiccarbon(TOC),andchemicaloxygendemand(COD)overtimewasstudied.Theintermediatesanddegradationpathwayofphenolwerededucedbyhighperformanceliquidchromatography(HPLC).

简介：TheethanecrackeratasteamcrackerofYangziPetrochemicalCompany(YPC)hasbeensafelyoperatingformorethan100dayssinceapplicationofdomesticN360cokeinhibitorstartingAugust28,2004tosetanewrecordontheoperatingcycleofethanecracker,whichhasrevealedgreatsuccessincommercialapplicationofthisinhibitor.

简介：OnJuly7,2014theprojectcoveringtheenlarged-scalepilottestandcommercialsidelinetestoftheMTPcatalystandPDPofthe1.8Mt/aSMTPpackagedtechnology,jointlyundertakenbytheSINOPEC’sShanghaiPetrochemicalResearchInstituteanditscooperativeinstitutions,hadpassedtherevieworganizedbytheSINOPEC