|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
十元环分子筛在甲醇芳构化反应中催化性能的研究
, PP. 1119-1127
Keywords: 甲醇芳构化,十元环分子筛,zsm-5,zsm-22,eu-1,mcm-22,itq-13,积炭
Abstract:
？合成了zsm-5、zsm-22、eu-1、mcm-22和itq-13具有十元环孔道结构的5种分子筛，研究了分子筛结构、酸性分布等因素对其在甲醇芳构化反应中催化性能的影响。研究表明，不同结构分子筛的形貌、酸性及孔径均存在较大差异，进而影响了其在甲醇制芳烃反应中的催化活性和稳定性。研究的5种分子筛中，zsm-5表现出最佳的芳构化活性，芳烃收率达34.8％，mcm-22芳烃收率约为21.9%，而其他3种结构的分子筛催化剂基本未表现出甲醇芳构化活性。通过添加具有芳构化性能的ga物种对zsm-5和mcm-22进行改性，可显著提升芳烃收率，ga/zsm-5上芳烃收率达到40.8%，ga/mcm-22上芳烃收率可提高到27.1%。另外，采用tg/dta、gc等方法研究了失活催化剂的积炭情况，发现分子筛结构对积炭量、积炭组成及积炭分布存在显著影响。
| [1] | mokranit,scurrellm.gasconversiontoliquidfuelsandchemicals:themethanolroute-catalysisandprocessesdevelopment[j].catalrev,2009,51(1):1-145.
|
| [2] | briscoena,johnsondw,shannonmd.theframeworktopologyofzeoliteeu-1[j].zeolites,1988,8(1):74-76.
|
| [3] | baerlocherch,mccuskerlb,olsondh.atlasofzeoliteframeworktypessixthrevisededition[m].netherlands:elsevierscienceltd,2007.
|
| [4] | robsonh,lillerudkp.verifiedsynthesisofzeoliticmaterials[m].netherlands:elsevierscienceltd,2001.
|
| [5] | 苗青,董梅,牛宪军,王浩,樊卫斌,王建国,秦张峰.含镓zsm-5分子筛的制备及其在甲醇芳构化反应中的催化性能[j].燃料化学学报,2012,40(10):1230-1239.(miaoqing,dongmei,niuxian-jun,wanghao,fanwei-bin,wangjian-guo,qinzhang-feng.synthesisofgallium-containingzsm-5molecularsievesandtheircatalyticperformanceinmethanolaromatization[j].journaloffuelchemistryandtechnology,2012,40(10):1230-1239.)
|
| [6] | teketels.shapeselectivityintheconversionofmethanoltohydrocarbons:thecatalyticperformanceofone-dimensional10-ringzeolites:zsm-22,zsm-23,zsm-48,andeu-1[j].acscatal,2012,2(1):26-37.
|
| [7] | bjørgenm,olsbyeu,petersend,kolboes.themethanoltohydrocarbonsreaction:insightintothereactionmechanismfrom12cbenzeneand13cmethanolcoreactionsoverzeoliteh-beta[j].jcatal,2004,221(1):1-10.
|
| [8] | teketels,olsbyeu,lillerudkp,beatop,svelles.selectivitycontrolthroughfundamentalmechanisticinsightintheconversionofmethanoltohydrocarbonsoverzeolites[j].microporousmesoporousmater,2010,136(1/3):33-41.
|
| [9] | beeckmanjw,fromentgf.catalystdeactivationbyactivesitecoverageandporeblockage[j].indengchemfundam,1979,18(3):245-256.
|
| [10] | beeckmanjw,fromentgf.catalystdeactivationbysitecoverageandporeblockage:finiterateofgrowthofthecarbonaceousdeposit[j].chemengsci,1980,35(4):805-815.
|
| [11] | rollmannld,walshde.shapeselectivityandcarbonformationinzeolites[j].jcatal,1979,56(1):139-140.
|
| [12] | blekenf,skistadw,barberak,kustovam,bordigas,beatop,lillerudkp,svelles,olsbyeu.conversionofmethanolover10-ringzeoliteswithdifferingvolumesatchannelintersections:comparisonoftnu-9,im-5,zsm-11andzsm-5[j].physchemchemphys,2011,13(7):2539-2549.
|
| [13] | 刘中民,陈国权,王清遐,梁娟,蔡光宇.分子筛催化剂的失活与积炭[j].催化学报,1994,15(4):301-303.(liuzhong-min,chenguo-quan,wangqing-xia,liangjuan,caiguang-yu.deactivationandcokeformationonzeolitecatalysts[j].chinesejournalofcatalysis,1994,15(4):301-303.)
|
| [14] | bjørgenm,svelles,joensenf,nerlovj,kolboes,boninof,palumbol,bordigas,olsbyeu.conversionofmethanoltohydrocarbonsoverzeoliteh-zsm-5:ontheoriginoftheolefinicspecies[j].jcatal,2007,249(2):195-207.
|
| [15] | travallonil,gomesacl,gasparab,silvamap.methanolconversionoveracidsolidcatalysts[j].cataltoday,2008,133-135:406-412.
|
| [16] | chenjq,bozzanoa,gloverb,fuglerudt,kvisles.recentadvancementsinethyleneandpropyleneproductionusingtheuop/hydromtoprocess[j].cataltoday,2005,106(1/4):103-107.
|
| [17] | kumarr,ratnaswamyp.isomerizationandformationofxylenesoverzsm-5andzsm-23zeolites[j].jcatal,1989,116(2):440-448.
|
| [18] | boxit,puchem,camblorma.syntheticporouscrystallinematerial,usedascatalystandadsorbent,comprisessetsofgenerallyparallelchannelsdefinedbyspecificringsoftetrahedrallycoordinatedatoms,whichintersectmutually:us,6471941.2002.
|
| [19] | jolyjf,ajoth,merlene,raatzf,alariof.parametersaffectingthedispersionofthegalliumphaseofgalliumh-mfiaromatizationcatalysts[j].applcatala:gen,1991,79(2):249-263.
|
| [20] | stöckerm.methanoltohydrocarbons:catalyticmaterialsandtheirbehavior[j].microporousmesoporousmater,1999,29(1/2):3-48.
|
| [21] | kimj,choim,ryoor.effectofmesoporosityagainstthedeactivationofmfizeolitecatalystduringthemethanoltohydrocarbonconversionprocess[j].jcatal,2010,269(1):219-228.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
