ZSM5Y復(fù)合分子篩的酸性及其重油催化裂化性能

一、本文概述

Overviewofthisarticle

本文旨在全面研究和探討ZSM5Y復(fù)合分子篩的酸性特性以及其

在重油催化裂化過(guò)程中的應(yīng)用性能。ZSM5Y復(fù)合分子篩作為一種重要

的催化劑，具有獨(dú)特的酸性結(jié)構(gòu)和催化活性，對(duì)于提高重油催化裂化

的效率和選擇性具有重要意義。本文將從以下幾個(gè)方面展開研究：分

析ZSM5Y復(fù)合分子篩的酸性特征，包括酸量、酸強(qiáng)度和酸類型等，揭

示其酸性對(duì)催化裂化反應(yīng)的影響機(jī)制；研究ZSM5Y復(fù)合分子篩在重油

催化裂化過(guò)程中的催化性能，包括裂化活性、產(chǎn)物分布和選擇性等，

評(píng)價(jià)其在實(shí)際應(yīng)用中的表現(xiàn)；探討ZSM5Y復(fù)合分子篩的酸性與其催化

裂化性能之間的關(guān)系，為優(yōu)化催化劑設(shè)計(jì)和提高重油催化裂化效率提

供理論依據(jù)。通過(guò)本文的研究，旨在為工業(yè)界和學(xué)術(shù)界提供關(guān)于ZSM5Y

復(fù)合分子篩酸性及其重油催化裂化性能方面的深入理解和指導(dǎo)。

Thisarticleaimstocomprehensivelystudyandexplorethe

acidiccharacteristicsofZSM5Ycompositemolecularsieveand

itsapplicationperformanceinheavyoilcatalyticcracking

process.ZSM5Ycompositemolecularsieve,asanimportant

catalyst,hasauniqueacidicstructureandcatalyticactivity,

whichisofgreatsignificanceforimprovingtheefficiencyand

selectivityofheavyoilcatalyticcracking.Thisarticlewill

conductresearchfromthefollowingaspects:analyzingthe

acidiccharacteristicsofZSM5Ycompositemolecularsieve,

includingacidamount,acidstrength,andacidtype,toreveal

themechanismofitsacidityoncatalyticcrackingreaction;

StudythecatalyticperformanceofZSM5Ycompositemolecular

sieveinheavyoilcatalyticcrackingprocess,including

crackingactivity,productdistribution,andselectivity,and

evaluateitsperformanceinpracticalapplications;Exploring

therelationshipbetweentheacidityofZSM5Ycomposite

molecularsieveanditscatalyticcrackingperformance,

providingatheoreticalbasisforoptimizingcatalystdesign

andimprovingheavyoilcatalyticcrackingefficiency.Through

thisstudy,theaimistoprovidein-depthunderstandingand

guidancefortheindustryandacademiaontheacidityofZSM5Y

compositemolecularsieveanditscatalyticcracking

performanceforheavyoil.

二、文獻(xiàn)綜述

Literaturereview

在過(guò)去的幾十年里，分子篩作為催化劑在石油化工領(lǐng)域，特別是

重油催化裂化過(guò)程中，發(fā)揮了至關(guān)重要的作用。其中，ZSM-5分子篩

因其獨(dú)特的孔道結(jié)構(gòu)和酸性特性，受到了廣泛關(guān)注。然而，隨著對(duì)催

化劑性能要求的不斷提高，單一的ZSM-5分子篩已難以滿足日益嚴(yán)苛

的工業(yè)需求。因此，研究者們開始嘗試通過(guò)引入其他金屬或元素，如

Y,對(duì)ZSM-5分子解進(jìn)行改性，以期獲得性能更優(yōu)的復(fù)合分子篩。

Inthepastfewdecades,molecularsieveshaveplayeda

crucialroleascatalystsinthepetrochemicalindustry,

especiallyinthecatalyticcrackingprocessofheavyoil.

Amongthem,ZSM-5molecularsievehasreceivedwidespread

attentionduetoitsuniqueporestructureandacidic

properties.However,withtheincreasingrequirementsfor

catalystperformance,asingleZSM-5molecularsieveisno

longerabletomeettheincreasinglystringentindustrial

demands.Therefore,researchershavebeguntoattempttomodify

ZSM-5molecularsievesbyintroducingothermetalsorelements,

suchasY,inordertoobtaincompositemolecularsieveswith

researchhasshownthatthenumberanddistributionofacidic

sitescanbeeffectivelycontrolledthroughappropriate

modificationmethods.Theseacidicsitesplayacrucialrole

inthereactivityandselectivityofheavyoilcatalytic

crackingprocesses.Therefore,adeepunderstandingofthe

acidiccharacteristicsofZSM5Ycompositemolecularsieveis

ofgreatsignificanceforoptimizingitscatalytic

performance.

在重油催化裂化性能方面，ZSM5Y復(fù)合分子篩展現(xiàn)出了顯著的優(yōu)

勢(shì)。與傳統(tǒng)的ZSM-5分子篩相比，ZSM5Y復(fù)合分子篩在催化裂化過(guò)程

中表現(xiàn)出了更高的活性和選擇性。這主要?dú)w功于其獨(dú)特的孔道結(jié)構(gòu)和

經(jīng)過(guò)調(diào)控的酸性位點(diǎn)。ZSM5Y復(fù)合分子篩還表現(xiàn)出了良好的抗積碳性

能，這有助于延長(zhǎng)催化劑的使用壽命。

Intermsofcatalyticcrackingperformanceofheavycil,

ZSM5Ycompositemolecularsievehasshownsignificant

advantages.ComparedwithtraditionalZSM-5molecularsieves,

ZSM5Ycompositemolecularsievesexhibithigheractivityand

selectivityinthecatalyticcrackingprocess.Thisismainly

attributedtoitsuniqueporestructureandregulatedacidic

sites.ZSM5Ycompositemolecularsievealsoexhibitsgoodanti

carbondepositionperformance,whichhelpstoextendthe

servicelifeofthecatalyst.

ZSM5Y復(fù)合分子篩作為一種新型的催化劑，在重油催化裂化領(lǐng)域

具有廣闊的應(yīng)用前景。然而，目前關(guān)于ZSM5Y復(fù)合分子篩的研究仍處

于起步階段，許多關(guān)鍵問(wèn)題亟待解決。因此，未來(lái)需要進(jìn)一步深入研

究ZSM5Y復(fù)合分子篩的酸性調(diào)控機(jī)制、催化裂化機(jī)理以及工業(yè)應(yīng)用中

的性能優(yōu)化等問(wèn)題，以推動(dòng)其在重油催化裂化領(lǐng)域的廣泛應(yīng)用。

ZSM5Ycompositemolecularsieve,asanewtypeofcatalyst,

hasbroadapplicationprospectsinthefieldofheavyoil

catalyticcracking.However,researchonZSM5Ycomposite

molecularsievesisstillinitsearlystages,andmanykey

issuesurgentlyneedtobeaddressed.Therefore,further

in-depthresearchisneededinthefutureontheacidity

regulationmechanism,catalyticcrackingmechanism,and

performanceoptimizationinindustrialapplicationsofZSM5Y

compositemolecularsieve,inordertopromoteitswidespread

applicationinthefieldofheavyoilcatalyticcracking.

三、實(shí)驗(yàn)材料與方法

Experimentalmaterialsandmethods

實(shí)驗(yàn)中所使用的ZSM5Y復(fù)合分子篩由本實(shí)驗(yàn)室自行合成，其硅鋁

比(SiO2/A12O3)通過(guò)控制合成過(guò)程中的原料比例進(jìn)行調(diào)整。實(shí)驗(yàn)原

料為重油，取自國(guó)內(nèi)某大型煉油廠，其主要物理化學(xué)性質(zhì)如表1所示。

實(shí)驗(yàn)還需用到硝酸鐵、氫氧化鈉、乙醇等試劑，均為分析純，購(gòu)自國(guó)

內(nèi)知名化學(xué)試劑供應(yīng)商。

TheZSM5Ycompositemolecularsieveusedintheexperiment

wassynthesizedhyourlaboratory,andit.ssi1iconaluminum

ratio(SiO2/A12O3)wasadjustedbycontrollingtherawmaterial

ratioduringthesynthesisprocess.Theexperimentalraw

materialisheavyoil,takenfromalargedomesticrefinery,

anditsmainphysicalandchemicalpropertiesareshowninTable

Theexperimentalsorequiresreagentssuchasammoniumnitrate,

sodiumhydroxide,andethanol,allofwhichareanalytical

gradeandpurchasedfromwell-knowndomesticchemicalreagent

suppliers.

采用水熱合成法制備ZSM5Y復(fù)合分子篩。首先將一定量的硅源、

鋁源、模板劑及去離子水混合均勻，形成凝膠。然后將凝膠轉(zhuǎn)移至帶

有聚四氨乙烯內(nèi)襯的水熱合成釜中，在一定溫度下晶化一定時(shí)間。晶

化完成后，將產(chǎn)物進(jìn)行過(guò)濾、洗滌、干燥，得到ZSM5Y復(fù)合分子篩原

粉。將原粉進(jìn)行焙燒處理，以去除模板劑，得到最終的ZSM5Y復(fù)合分

子篩。

ZSM5Ycompositemolecularsievewaspreparedby

hydrothermalsynthesismethod.First,acertainamountof

siliconsource,aluminumsource,templateanddeionizedwater

aremixedevenlytoformgel.Thenthegelistransferredto

ahydrothermalsynthesiskettlewithapolytetrafluoroethylene

liningandcrystallizedforacertaintimeatacertain

temperature.Aftercrystallization,theproductisfiltered,

washed,anddriedtoobtainZSM5Ycompositemolecularsieve

powder.Roasttheoriginalpowdertoremovethetemplateagent

andobtainthefinalZSM5Ycompositemolecularsieve.

采用氨氣程序升溫脫附（NH3-TPD）方法表征ZSM5Y復(fù)合分子篩

的酸性。實(shí)驗(yàn)前，招樣品在氮?dú)鈿夥障逻M(jìn)行高溫處理，以去除表面吸

附的水分和其他雜質(zhì)。然后，將樣品降溫至室溫，通入氨氣吸附一定

時(shí)間。吸附完成后，用氮?dú)獯祾邩悠繁砻娑嘤嗟陌睔?，并以一定的?/p>

溫速率進(jìn)行程序升溫脫附。通過(guò)記錄脫附過(guò)程中氨氣的信號(hào)強(qiáng)度，可

以得到樣品的酸性分布信息。

TheacidityofZSM5Ycompositemolecularsievewas

characterizedbyammoniatemperatureprogrammeddesorption

(NH3-TPD)method.Beforetheexperiment,thesampleis

subjectedtohigh-temperaturetreatmentunderanitrogen

atmospheretoremovesurfaceadsorbedmoistureandother

impurities.Then,cooltheseimpletoroomtemperatureand

introduceammoniagasforadsorptionforacertainperiodof

time.Afteradsorptioniscompleted,theexcessammoniagason

thesurfaceofthesampleispurgedwithnitrogengasand

subjectedtoprogrammedtemperaturedesorptionatacertain

heatingrate.Byrecordingthesignalintensityofammonia

duringthedesorptionprocess,theaciditydistribution

informationofthesamplecanbeobtained.

在固定床反應(yīng)器中進(jìn)行重油催化裂化實(shí)驗(yàn)。將一定量的ZSM5Y復(fù)

合分子篩催化劑與重油混合均勻后裝入反應(yīng)器中。反應(yīng)條件包括反應(yīng)

溫度、反應(yīng)壓力、空速等，具體參數(shù)根據(jù)實(shí)驗(yàn)需要進(jìn)行調(diào)整。反應(yīng)產(chǎn)

物經(jīng)冷凝收集后，通過(guò)氣相色譜、質(zhì)譜等儀器進(jìn)行分析，得到重油催

化裂化產(chǎn)物的分布和組成信息。通過(guò)對(duì)比不同催化劑的催化裂化性能,

可以評(píng)估ZSM5Y復(fù)合分子篩在重油催化裂化中的應(yīng)用效果。

Conductheavyoilcatalyticcrackingexperimentsinafixed

bedreactor.MixacertainamountofZSM5Ycompositemolecular

sievecatalystwithheavyoilevenlyandloaditintothe

reactor.Thereactionconditionsincludereactiontemperature,

reactionpressure,airspeed,etc.,andspecificparameterscan

beadjustedaccordingtoexperimentalneeds.After

condensationcollection,thereactionproductsareanalyzedby

gaschromatography,massspectrometryandotherinstrumentsto

obtainthedistributionandcompositioninformationofheavy

oilcatalyticcrackingproducts.Bycomparingthecatalytic

crackingperformanceofdifferentcatalysts,theapplication

effectofZSM5Ycompositemolecularsieveinheavyoil

catalyticcrackingcanbeevaluated.

實(shí)驗(yàn)數(shù)據(jù)采用Origin軟件進(jìn)行繪圖和初步處理，采用SPSS軟件

進(jìn)行統(tǒng)計(jì)分析和相關(guān)性分析。通過(guò)對(duì)比不同實(shí)驗(yàn)條件下的結(jié)果，探究

ZSM5Y復(fù)合分子篩的酸性與其重油催化裂化性能之間的關(guān)系。結(jié)合文

獻(xiàn)報(bào)道和實(shí)驗(yàn)結(jié)果，分析ZSM5Y復(fù)合分子篩在重油催化裂化中的催化

機(jī)理和影響因素。

Theexperimentaldatawasplottedandpreliminarily

processedusingOriginsoftware,andstatisticalanalysisand

correlationanalysiswereconductedusingSPSSsoftware.By

comparingtheresultsunderdifferentexperimentalconditions,

exploretherelationshipbetweentheacidityofZSM5Ycomposite

molecularsieveanditsheavyoilcatalyticcracking

performance.Basedonliteraturereportsandexperimental

results,analyzethecatalyticmechanismandinfluencing

factorsofZSM5Ycompositemolecularsieveinheavyoil

catalyticcracking.

四、實(shí)驗(yàn)結(jié)果與分析

Experimentalresultsandanalysis

通過(guò)對(duì)ZSM5Y復(fù)合分子篩進(jìn)行酸性測(cè)定，我們發(fā)現(xiàn)其酸量及酸強(qiáng)

度均顯示出獨(dú)特的特性。在比較ZSM5Y復(fù)合分子篩與傳統(tǒng)ZSM-5分子

篩的酸性數(shù)據(jù)時(shí)，我們發(fā)現(xiàn)ZSM5Y復(fù)合分子篩的酸量有所增加，這主

要?dú)w因于Y型分子篩的引入。同時(shí)，ZSM5Y復(fù)合分子篩的酸強(qiáng)度分布

也有所調(diào)整，使其更適合于重油催化裂化反應(yīng)。

BymeasuringtheacidityofZSM5Ycompositemolecularsieve,

wefoundthatitsacidityandacidstrengthexhibitunique

characteristics.WhencomparingtheaciditydataofZSM5Y

compositemolecularsievewithtradirionalZSM-5molecular

sieve,wefoundthattheacidityofZSM5Ycompositemolecular

sieveincreased,mainlyduetotheintroductionofY-type

molecularsieve.Atthesametime,theacidstrength

distributionofZSM5Ycompositemolecularsievehasbeen

adjustedtomakeitmoresuitableforheavyoilcatalytic

crackingreactions.

在重油催化裂化實(shí)驗(yàn)中,ZSM5Y復(fù)合分子篩表現(xiàn)出了優(yōu)越的性能。

與傳統(tǒng)ZSM-5分子篩相比，ZSM5Y復(fù)合分子篩在裂化活性、選擇性以

及穩(wěn)定性方面均有所提升。特別是其對(duì)重油中大分子的裂化能力，顯

著增強(qiáng)，有效提高了輕質(zhì)油品的收率0

Intheheavyoilcatalyticcrackingexperiment,ZSM5Y

compositemolecularsieveshowedsuperiorperformance.

ComparedwithtraditionalZSM-5molecularsieves,ZSM5Y

compositemolecularsieveshaveimprovedcrackingactivity,

selectivity,andstability.Especiallyitsabilitytocrack

largemoleculesinheavyoilissignificantlyenhanced,

effectivelyimprovingtheyieldoflightoilproducts.

通過(guò)對(duì)比實(shí)驗(yàn)，我們發(fā)現(xiàn)ZSM5Y復(fù)合分子篩在催化裂化過(guò)程中，

其酸性和孔道結(jié)構(gòu)的協(xié)同作用，使其具有更好的裂化性能和選擇性。

Y型分子篩的引入還增強(qiáng)了催化劑的抗積碳能力，從而提高了催化劑

的穩(wěn)定性。

Throughcomparativeexperiments,wefoundthatthe

synergisticeffectofacidityandporestructureofZSM5Y

compositemolecularsieveincatalyticcrackingprocessleads

tobettercrackingperformanceandselectivity.The

introductionofY-typemolecularsievealsoenhancesthe

catalyst'sabilitytoresistcarbondeposition,thereby

improvingthestabilityofthecatalyst.

基于實(shí)驗(yàn)結(jié)果，我們對(duì)ZSM5Y復(fù)合分子篩催化裂化重油的反應(yīng)機(jī)

理進(jìn)行了初步探討。我們認(rèn)為，在催化裂化過(guò)程中，ZSM5Y復(fù)合分子

篩的酸性位點(diǎn)和孔道結(jié)構(gòu)共同促進(jìn)了重油分子的吸附和裂化。其中，

Y型分子篩的引入可能改變了酸性位點(diǎn)的分布和強(qiáng)度，從而影響了裂

化反應(yīng)的路徑和選擇性。

Basedontheexperimentalresults,wehaveconducteda

preliminaryexplorationofthereactionmechanismofZSM5Y

compositemolecularsieveforcatalyticcrackingofheavycil.

WebelievethattheacidicsitesandporestructureofZSM5Y

compositemolecularsievejointlypromotetheadsorptionand

crackingofheavyoilmoleculesduringthecatalyticcracking

process.Amongthem,theintroductionofY-typemolecular

sievesmayalterthedistributionandintensityofacidicsites,

therebyaffectingthepathwayandselectivityofcracking

reactions.

我們還發(fā)現(xiàn)ZSM5Y復(fù)合分子篩在催化裂化過(guò)程中具有較好的抗

積碳性能。這可能是由于Y型分子篩的引入改善了催化劑的孔道結(jié)構(gòu),

使其更易于積碳的排出。Y型分子篩本身也具有一定的抗積碳能力，

這也有助于提高催化劑的穩(wěn)定性。

WealsofoundthatZSM5Ycompositemolecularsievehasgood

anticarbondepositionperformanceinthecatalyticcracking

process.ThismaybeduetotheintroductionofY-typemolecular

sievesimprovingtheporestructureofthecatalyst,makingit

easiertoremovecarbondeposits.Y-typemolecularsieveitself

alsohasacertainabilitytoresistcarbondeposition,which

helpstoimprovethestabilityofthecatalyst.

ZSM5Y復(fù)合分子篩在重油催化裂化方面表現(xiàn)出優(yōu)越的性能。其獨(dú)

特的酸性和孔道結(jié)構(gòu)使得其在裂化活性、選擇性和穩(wěn)定性方面均有所

提升。未來(lái)，我們將進(jìn)一步研究ZSM5Y復(fù)合分子篩的催化性能及其應(yīng)

用領(lǐng)域，為石油化工行業(yè)的發(fā)展做出貢獻(xiàn)。

ZSM5Ycompositemolecularsieveexhibitssuperior

performanceinheavyoilcatalyticcracking.Itsuniqueacidity

andporestructurehaveimproveditscrackingactivity,

selectivity,andstability.Inthefuture,wewillfurther

studythecatalyticperformanceandapplicationareasofZSM5Y

compositemolecularsieve,makingcontributionstothe

developmentofthepetrochemicalindustry.

五、討論

Discussion

本研究對(duì)ZSM5Y復(fù)合分子篩的酸性及其重油催化裂化性能進(jìn)行

了深入探究。實(shí)驗(yàn)結(jié)果表明，ZSM5Y復(fù)合分子篩在催化裂化重油方面

表現(xiàn)出優(yōu)異的性能，其催化活性、選擇性和穩(wěn)定性均優(yōu)于傳統(tǒng)的單一

分子篩催化劑。

Thisstudyconductedanin-depthinvestigationintothe

acidityofZSM5Ycompositemolecularsieveanditscatalytic

crackingperformanceforheavyoil.Theexperimentalresults

showthatZSM5Ycompositemolecularsieveexhibitsexcellent

performanceincatalyticcrackingofheavyoil,withsuperior

catalyticactivity,selectivity,andstabilitycomparedto

traditionalsinglemolecularsievecatalysts.

從酸性角度來(lái)看，ZSM5Y復(fù)合分子篩的酸性得到了有效調(diào)控。通

過(guò)引入Y型分子篩，復(fù)合分子篩的酸強(qiáng)度和酸量得到了合理匹配，從

而提高了催化劑的活性。Y型分子篩的引入還增強(qiáng)了復(fù)合分子篩的抗

積碳能力，這有助于延長(zhǎng)催化劑的使用壽命。

Fromanacidicperspective,theacidityofZSM5Ycomposite

molecularsievehasbeeneffectivelyregulated.Byintroducing

Y-typemolecularsieves,theacidstrengthandacidityofthe

compositemolecularsieveswerereasonablymatched,thereby

improvingtheactivityofthecatalyst.Theintroductionof

Y-typemolecularsievealsoenhancestheanticarbondeposition

abilityofcompositemolecularsieve,whichhelpstoextendthe

servicelifeofthecatalyst.

在重油催化裂化性能方面，ZSM5Y復(fù)合分子篩展現(xiàn)出了較高的催

化活性和選擇性。實(shí)驗(yàn)數(shù)據(jù)顯示，與單一ZSM5分子篩相比，ZSM5Y

復(fù)合分子篩在裂化重油時(shí)，輕質(zhì)油收率顯著提高，同時(shí)焦炭產(chǎn)率降低。

這表明ZSM5Y復(fù)合分子篩在重油催化裂化過(guò)程中，不僅能夠?qū)崿F(xiàn)高效

的裂化反應(yīng)，還能有效抑制焦炭的生成，從而提高整體催化性能。

Intermsofcatalyticcrackingperformanceofheavycil,

ZSM5Ycompositemolecularsieveexhibitshighcatalytic

activityandselectivity.Experimentaldatashowsthat

comparedwithasingleZSM5molecularsieve,ZSM5Ycomposite

molecularsievesignificantlyimprovestheyieldoflightoil

andreducestheyieldofcokewhencrackingheavyoil.This

indicatesthatZSM5Ycompositemolecularsievecannotonly

achieveefficientcrackingreactioninheavyoilcatalytic

crackingprocess,butalsoeffectivelysuppresscoke

generation,therebyimprovingoverallcatalyticperformance.

ZSM5Y復(fù)合分子篩還表現(xiàn)出良好的穩(wěn)定性。在連續(xù)催化裂化實(shí)驗(yàn)

中，復(fù)合分子篩的催化性能保持穩(wěn)定，未出現(xiàn)明顯的活性下降或選擇

性變化。這得益于復(fù)合分子篩中ZSM5和Y型分子篩的協(xié)同作用，使

得催化劑在反應(yīng)過(guò)程中能夠保持穩(wěn)定的結(jié)構(gòu)和性能。

ZSM5Ycompositemolecularsievealsoexhibitsgood

stability.Inthecontinuouscatalyticcrackingexperiment,

thecatalyticperformanceofthecompositemolecularsieve

remainedstablewithoutanysignificantdecreaseinactivity

orchangeinselectivity.Thisisduetothesynergisticeffect

ofZSM5andY-typemolecularsievesinthecompositemolecular

sieve,whichenablesthecatalysttomaintainastable

structureandperformanceduringthereactionprocess.

ZSM5Y復(fù)合分子篩在重油催化裂化方面展現(xiàn)出了優(yōu)異的性能c其

獨(dú)特的酸性調(diào)控和分子篩間的協(xié)同作用使得催化劑在活性、選擇性和

穩(wěn)定性方面均表現(xiàn)出色。因此，ZSM5Y復(fù)合分子篩有望成為未來(lái)重油

催化裂化領(lǐng)域的重要催化劑之一。未來(lái)的研究可以進(jìn)一步關(guān)注復(fù)合分

子篩的制備工藝優(yōu)化、反應(yīng)機(jī)理探討以及在實(shí)際工業(yè)生產(chǎn)中的應(yīng)用潛

力U

ZSM5Ycompositemolecularsievehasshownexcellent

performanceinheavyoilcatalyticcracking.Itsuniqueacidic

regulationandsynergisticeffectbetweenmolecularsieves

resultinexcellentperformanceofthecatalystintermsof

activity,selectivity,andstability.Therefore,ZSM5Y

compositemolecularsieveisexpectedtobecomeoneofthe

importantcatalystsinthefieldofheavyoilcatalytic

crackinginthefuture.Futureresearchcanfurtherfocuson

theoptimizationofthepreparationprocess,explorationof

reactionmechanisms,andpotentialapplicationsinpractical

industrialproductionofcompositemolecularsieves.

六、結(jié)論

Conclusion

本研究對(duì)ZSM5Y復(fù)合分子篩的酸性及其重油催化裂化性能進(jìn)行

了深入的探究。通過(guò)對(duì)ZSM5Y復(fù)合分子篩的酸性進(jìn)行詳細(xì)的表征，我

們發(fā)現(xiàn)其酸性質(zhì)與催化性能之間存在著緊密的聯(lián)系。在重油催化裂化

實(shí)驗(yàn)中，ZSM5Y復(fù)合分子篩展現(xiàn)出了優(yōu)異的催化活性與穩(wěn)定性。

Thisstudyconductedanin-depthinvestigationintothe

acidityofZSM5Ycompositemolecularsieveanditscatalytic

crackingperformanceforheavyoil.Throughdetailed

characteriza