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简介：ThemaindisadvantageofmicroporousSSZ-13catalystusedinthemethanoltoolefins(MTO)processisitsrapiddeactivationduetoitsrelativelylowcokeresistance.Meanwhile,thehierarchicalzeolitesusuallyexhibitimprovedcatalyticstabilitythankstotheirbettermasstransferability.Herein,thehierarchicallynanoporousSSZ-13zeoliteswereone-potsynthesizedbyusingN,N,N-trimethyl-1-adamantanammoniumhydroxideasamicroporousstructuredirectingagentandC18H37N+(CH3)2C6H12N+(CH3)2C6H13(Br-)2(hereinafterabbreviatedasC18-6-6Br2)asamesoporogen.ThehierarchicallynanoporousSSZ-13catalystwascharacterizedbyXRD,N2physisorption,SEM,TEM,TG-DTG,27Aland29SiNMRspectroscopyandNH3-TPDtechniques.TheresultsshowedthatthehierarchicalSSZ-13zeolitesynthesizedinthepresenceoftheC18-6-6Br2surfactantexhibitsaggregatesofprimarynanocrystalsandcontainsthewell-developedmesoporesandexcellentacidity.Comparedtoitsconventionalcounterpart,thehierarchicalSSZ-13zeolitehaslongercatalyticlifetimeandhigherselectivityforethyleneandpropyleneintheMTOreaction,whichcanbeattributedtothesynergisticeffectoftheirgoodacidityandimproveddiffusionpropertiesresultedfromthehierarchicalporestructure.

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：TheYangziPetrochemicalCompanyisthefirstoneamongdomesticaromaticsmanufacturerstoadopttheUOP’slatestnoveladsorbentduringqualityupgradingofitsNo.2xyleneunit.OnOctober23,2013thisunithasbeencontinuouslydeliveringxyleneproductwithapurityof

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简介：ThenickelcatalystSHN-01/Fforone-stagehydrotreatingofpyrolysisgasolinedevelopedbySINOPECShanghaiPetrochemicalResearchInstitutehassuccessfullycompletedcommercialtests,symbolizingthebeginningofcommercialapplicationphaseofthisnickel-basedcatalystforone-stagehydrotreatingofpyrolysisgasolinewithSINOPEC'sindependentintellectualpropertyrights.

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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。

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简介：2013年，我国炼油生产能力有望突破6亿吨.目前我国炼化生产规模仅次于美国，已经稳居全球第二。如果放在几年前，这样的数字、这样的速度、这样的规模肯定会成为爆炸性新闻，占据主流媒体的头版头条，掀起一波有声有势的传播热潮。

简介：根据新成立的海湾石化和化工协会（GPCA）宣称，海湾合作集团（GCC）国家在2007年期间将可能向全球市场出售超过6千万吨的石油化工产品。SABIC的副总裁和首席执行官AlMady兼任GPCA的主席，他说，GCC国家对于全球的石化和化学工业具有极端重要的意义。估计到2010年前这一地区这两个工业领域将增长13％。GCC在石化、化工领域的优势得益于原料的充沛供应、最新型的技术及其处于美洲、亚洲和世界其他地区交叉点上的优越地理位置。而且该地区市场上资金充足，更增加了其竞争力。而建设和劳务费用又相对低廉，对外国投资者的税收政策也很优惠。

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