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OALib Journal期刊
ISSN: 2333-9721
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zsm-5分子筛的粒径可控合成及其在甲醇转化中的催化作用
, PP. 576-582
Keywords: zsm-5,粒径,甲醇转化,碳氢化合物,催化稳定性,产物分布
Abstract:
？以四丙基氢氧化胺为模板剂、聚乙二醇为添加剂,水热合成了粒径在0.1～14μm且分布均一的zsm-5分子筛,并采用xrd、sem、bet、py-ir、nh3-tpd和icp等技术对其进行了表征,考察了不同粒径分子筛在甲醇转化制碳氢化合物反应中的催化作用。结果表明,通过调变peg添加量、硅源种类和水含量以及控制陈化和晶化条件,可以在较大范围内调变分子筛晶粒尺寸。随着粒径的减小,zsm-5晶粒的聚集程度、比表面积和si/al比提高,而结晶度、br？nsted酸浓度和总酸量有所下降。在甲醇催化转化制碳氢化合物的反应中,粒径为0.1μm的分子筛催化稳定性最好;随着粒径的增大,其稳定性逐渐下降,粒径为14μm的分子筛催化剂寿命明显降低。同时,粒径对甲醇转化产物分布也有较大影响;小粒径分子筛有利于生成轻质烃类(c1～c4),而大粒径分子筛对c5以上烷烃和芳烃的选择性较高。
| [1] | 张素红,张变玲,高志贤,韩怡卓.晶粒大小对zsm-5分子筛甲醇制低碳烯烃催化性能的影响[j].燃料化学学报,2010,38(4).483-489.(zhangsu-hong,zhangbian-ling,gaozhi-xian,hanyi-zhuo.effectofzeolitecrystalsizeonthecatalyticperformanceofhzsm-5inthereactionofmethanoltolightolefins[j].journaloffuelchemistryandtechnology,2010,38(4):483-489.)
|
| [2] | sugimotom,katsunoh,takatsuk,kawatan.correlationbetweenthecrystalsizeandcatalyticpropertiesofzsm-5zeolites[j].zeolites,1987,7(6):503-507.
|
| [3] | firoozim,baghalham,asadim.theeffectofmicroandnanoparticlesizesofh-zsm-5ontheselectivityofmtpreaction[j].catalcommun,2009,10(12):1582-1585.
|
| [4] | perssonae,schoemanbj,stertej,ottesstedtje.thesynthesisofdiscretecolloidalparticlesoftpa-silicalite-1[j].zeolites,1994,14(7):557-567.
|
| [5] | perssonae,schoemanbj,stertej,otterstedtje.synthesisofstablesuspensionsofdiscretecolloidalzeolite(na,tpa)zsm-5crystals[j].zeolites,1995,15(7):611-619.
|
| [6] | huy,liuc,zhangyh,renn,tangy.microwave-assistedhydrothermalsynthesisofnanozeoliteswithcontrollablesize[j].microporousmesoporousmater,2009,119(1/3):306-314.
|
| [7] | myattgj,buddpm,pricec,hollwayf,carrsw.theinfluenceofsurfactantsandwatersolublepolymersonthecrystallizationofzeolitenaa[j].zeolites1994,14(3):190-197.
|
| [8] | songw,justicere,jonesca,grassianvh,larsensc.synthesis,characterization,andadsorptionpropertiesofnanocrystallinezsm-5[j].langmuir,2004,20(19):8301-8306.
|
| [9] | 徐如人,庞文琴,于吉红,霍启升,陈接胜.分子筛与多孔材料化学[m].北京:科学出版社,2004.(xuru-ren,pangwen-qin,yuji-hong,huoqi-sheng,chenjie-sheng.chemistry-zeolitesandporousmaterials[m].beijing:sciencepress,2004.)
|
| [10] | vangriekenr,sotelojl,menendezjm,meleroja.anomalouscrystallizationmechanisminthesynthesisofnanocrystallinezsm-5[j].microporousmesoporousmater,2000,39(1/2):135-147.
|
| [11] | simon-masserona,marquesjp,lopesjm,ribeirofr,generi,guisnetm.influenceofthesi/alratioandcrystalsizeontheacidityandactivityofhbeazeolites[j].applcatala,2007,316(1):75-82.
|
| [12] | chouyh,cundycs,garforthaa,zholobenkovl.mesoporouszsm-5catalysts:preparation,characterisationandcatalyticproperties:particomparisonofdifferentsynthesisroutes[j].microporousmesoporousmater,2006,89(1/3):78-87.
|
| [13] | meic,wenp,liuz,liuh,wangy,yangw,xiez,huaw,gaoz.selectiveproductionofpropylenefrommethanol:mesoporositydevelopmentinhighsilicahzsm-5[j].jcatal,2008,258(1):243-249.
|
| [14] | kimjh,kuniedat,niwam.generationofshape-selectivityofp-xyleneformationinthesynthesizedzsm-5zeolites[j].jcatal,1998,173(2):433-439.
|
| [15] | venutopb.organiccatalysisoverzeolites-aperspectiveonreactionpathswithinmicropores[j].microporousmater,1994,2(5):297-411.
|
| [16] | 倪小明,谭猗生,韩怡卓.甲醇在hy分子筛上合成异构烃的研究[j].燃料化学学报,2006,34(5):637-639.(nixiao-ming,tanyi-sheng,hanyi-zhuo.studyonthesynthesisofisoalkanesbythereactionofmethanoloverhycatalyst[j].journaloffuelchemistryandtechnology,2006,34(5):637-639.)
|
| [17] | bjorgenm,joensenf,holmms,olsbysu,lillerudkp,svelles.methanoltogasolineoverzeoliteh-zsm-5:improvedcatalystperformancebytreatmentwithnaoh[j].applcatala,2008,345(1):43-50.
|
| [18] | stockerm.methanol-to-hydrocarbons:catalyticmaterialsandtheirbehavior[j].microporousmesoporousmater,1999,29(1/2):3-48.
|
| [19] | keilfj.methanol-to-hydrocarbons:processtechnology[j].microporousmesoporousmater,1999,29(1/2):49-66.
|
| [20] | nishiyaman,kawaguchim,hirotay,vanvud,egashiray,ueyamak.sizecontrolofsapo-34crystalsandtheircatalystlifetimeinthemethanol-to-olefinreaction[j].applcatala,2009,362(1/2):193-199.
|
| [21] | hirotay,muratak,miyamotom,egashiray,nishiyaman.lightolefinssynthesisfrommethanolanddimethyletheroversapo-34nanocrystals[j].catallett,2010,140(1/2):22-26.
|
| [22] | 王锋,贾鑫龙,胡津仙,任杰,李永旺,孙予罕.形貌、晶粒大小不同的zsm-5分子筛的表征及催化性能的研究[j].分子催化,2003,17(2):140-145.(wangfeng,jiaxin-long,hujiex,renjie,liyong-wang,sunyu-han.characteristicsandcatalyticperformanceofzsm-5zeoliteswithdifferentcrystalsizeandmorphology[j].joumalofmolecularcatalysis(china),2003,17(2):140-145.)
|
| [23] | brandenbergers,krochero,wokauna,tisslera,aithoffr.theroleofbronstedacidityintheselectivecatalyticreductionofnowithammoniaoverfe-zsm-5[j].jcatal,2009,268(2):297-306.
|
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