简介:Theconsumptionofsteamasatraditionalmeansforfeedstockatomizationaccountsforarelativelylargeshareintheprocessenergyuseandmakesupthemainpartofsulfurcontainingwastewater.ThisarticleonthebasisofcomprehensiveanalysisputsforwardapropositiononusingtheFCCoffgasasthemediumforatomizingtheFCCfeed,whichwouldplayarealisticroleforenergyconservationandenvironmentalprotectionofFCCprocess.
简介:ThevanadiumspecieswerecontaminatedonFCCcatalystsbyusingtheMitchellmethod.AfterthehydrothermaldeactivationoftheFCCcatalysts,thecrackingreactionwasperformedonthesecatalystsamples.ThetestresultsrevealedthattheconversionoffeedstockandthegasolineyieldobtainedovertheFCCcatalystswithvanadiumtrappingcomponentswereobviouslyhigherthanthosewithoutadditionofvanadiumtrappingcomponents.TheresultsalsoshowedthatthedrygasandcokeselectivityontheFCCcatalystscontainingvanadiumtrappingcomponentswasimproved.TheX-Raydiffractionresultsprovedthatthezeolitecrystalstructurewaswellprotectedbythevanadiumtrappingcomponentsduringitshydrothermaldeactivationstep.TheresultsofSEM-EDXmappingdisclosedthatthevanadiumwasenrichedonthevanadiumtrappingcomponentswhichverifiedthepositivefunctionofvanadiumtrappingcomponents.
简介:Inordertomeettheurgentneedforreducingolefincontentincrackednaphtha,theinfluenceoffeedstockcharacteristicsontheolefincontentwasdiscussed.ThedifferenttypesandperformanceofcatalystsdevelopedbyRIPPwereintroduced.Moreover,someeffectiveoperationapproachesincommercialunitswerepresentedtoserveasareferencetotherefinersforcatalystselection.
简介:ThestrontiummodifiedwasteFCCcatalystwaspreparedbymagneticstirringmethodandcharacterizedbyXraydiffractometry(XRD),UV-Visdiffusereflectancespectrometry(DRS),X-rayphotoelectronspectroscopy(XPS)andscanningelectronmicroscopy(SEM).Meanwhile,itsphotocatalyticdenitrogenationperformancewasevaluatedintermsofitsabilitytodegradetheN-containingsimulationoilundervisiblelight.Amixtureofstrontiumnitratesolution(withaconcentrationof0.5mol/L)andwasteFCCcatalystwascalcinedat400℃for5hpriortotakingpartinthephotocatalyticdenitrogenationreaction.ThetestresultsshowedthatthephotocatalyticdegradationrateofpyridinecontainedinsimulationoilinthepresenceofthestrontiummodifiedFCCcatalystcouldreach92.0%undervisiblelightirradiationfor2.5h.
简介:在FCC汽油的硫混合物的形成上的石蜡的效果在在从400~500的温度联合起来的一张小规模的固定的使流体化的床(FFB)上被学习,重量时时10h-1的空间速度(WHSV),和6的催化剂/油比率。结果证明在FCC汽油包含的C4-C6石蜡能与H2S反应主要形成thiophenes,alkyl-thiophenes以及thiols的部分数量,当象heptene那样的大分子的石蜡能与形成benzothiophenes的氢硫化物反应时。在不同催化剂上在不同温度形成的硫混合物的数量与在化工物品的石蜡的集体部分成比例,与在REUSY催化剂超过上形成的硫混合物的数量,那些在石蜡变换的度上由于催化剂性能的效果和催化剂的影响在形状上形成了选择沸石催化剂。因为为硫的形成的热力学、运动的常数上的温度的影响,在450点的最大值和在400点的最小象在石蜡变换degree.Based上一样加重在上的产生的硫混合物和他们到达的增加的数量上述学习,为与H2S在FCC汽油在石蜡的反应之上产生的硫混合物的预言的一个反应网络和一个模型被建立。
简介:<正>Drivenbytheincreasingsupplyofheavyoilswithdeterioratingquality,ahighnickel-resistantcatalystforcatalyticcrackingofinferiorcrudeoilswasdevelopedbytheResearchInstituteofPetroleumProcessing(RIPP).Catalystperformancewasevaluatedinalaboratoryfixedfluidizedbedreactor.Thetestresultsshowedthatthehighnickelresistancecatalystexhibitedgoodbottomscrackability,goodnickelresistance,andgoodadaptabilitytochangesinoperatingparameters,whichhadnoadverseeffectontheproductdistribution,indicatingtoamostpromisingprospectforapplicationofthiscatalystincatalyticcrackingofinferiorcrudeoil.
简介:Inthisarticle,theFCCdieselfuelischemicallytreatedwithGZreagent.Theexistentgum,insolublesafteroxidation,andiodinemunberaregreatlyreducedafterchermicaltreatment.Thismethodhasagoodeffectandissimple.Thismethodischaracterizedbyhighrecoveryrateoffuel(>99.7?andlowcost.Thepropertyofthemixtureofchemicallytreateddieselfuelwithstraight-rundieselfuelcanmeettherequirementsofnationalstandardGB252-2000.Thecolorandoxidationstabilityofthemixedfuelafterhavingbeenstoredforthreemonthswerestilllowerthanthevaluesspecifiedinthenationalstandard.
简介:为FCC石油的选择hydrodesulfurization(HDS)的催化剂的反应上的催化剂,添加剂和催化剂准备方法的活跃金属部件的影响被调查,并且有高HDS性能的RSDS-21催化剂和有高选择的RSDS-22催化剂被RIPP开发。为FCC汽油的选择HDS的催化剂的一个新系列的合成装载表明了优秀desulfurization活动和选择,在常规hydrotreating下面,条件能生产在抗爆索引满足国家排放标准和与更少的损失标准的欧元排放的干净汽油产品。在为FCC石油的选择HDS被采用之上的FCC催化剂的使结束的新系列与好稳定性一起有好适应性到不同化工物品。
简介:TheproductdistributionandgasolinequalityofFCCprocess,especiallytheolefincontent,heavilydependsonthecatalystperformanceintermsofselective/non-selectivehydrogentransferreactionselectivity.Areliableexperimentalprotocolhasbeenestablishedbyusingn-dodecaneasaprobemoleculetocharacterizetheselectivehydrogentransferabilityofcatalyticmaterials.Theresultsobtainedhavebeencorrelatedwiththeperformanceofthepracticalcatalysts.
简介:<正>Anadvancedsilica-dominatedmatrixtechnologyplatformanditsapplicationwereintroducedinthispaper.Throughnovelproprietaryprocessing,theadvancedsilica-dominatedmatrixwaspreparedfromtheuniquesilicasolandpseudo-boehmite.Thematrixporesizedistributionandaciditycanbetailoredtoprovideoptimalcoke-selectivityandbottoms-crackingabilitymatchedtofeedstockcharacteristics.AnovelFCCcatalyst(RSC-2006)forreducingcokeandslurryyieldswasdevelopedbasedonthesilica-dominatedmatrixtechnologyplatform.TheresultsofcommercialapplicationofthesaidtechnologyindicatedthattheRSC-2006catalystexhibitedexcellentperformanceonbottomscracking,cokeselectivityandhighvalueproductsyields.