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OALib Journal期刊
ISSN: 2333-9721
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催化裂化条件下噻吩与改性y分子筛的作用机制
, PP. 862-869
Keywords: 噻吩,改性y分子筛,催化裂化,酸性,作用机制
Abstract:
？以hy、niy和稀土离子改性的y分子筛(rey)为研究对象,采用固定床装置评价噻吩模拟油催化裂化性能;运用气相色谱-氢火焰离子发光检测器(gc-fid)、气相色谱-硫化学发光检测器(gc-scd)和原位红外光谱技术分析产物,关联分子筛的酸性,研究催化裂化条件下噻吩与改性y分子筛的作用机制。实验结果表明,催化裂化条件下,噻吩与分子筛的作用机制差异主要取决于与b酸或l酸相关的非骨架铝物种或金属离子物种的存在形式。其中,niy分子筛中,噻吩主要是吸附在与nioh+物种相关的l酸中心,而ni4alo43+等物种减弱b酸性中心从而降低其裂化性能。对hy来说,噻吩易在与alo+等物种相邻的b酸中心上聚合形成三联噻吩,并发生一定的氢转移和裂化反应;而对rey而言,分子筛中与re物种相关的l酸位会促进噻吩在与非骨架铝羟基等物种(如al(oh)2+、al(oh)2+等)相邻的b酸中心形成的二联噻吩发生氢转移和裂化反应。
| [1] | 山红红,李春义,赵辉,杨朝合,张建芳.噻吩在usy沸石上的裂化脱硫反应机理探索[j].燃烧化学报,2001,29(6):481-485.(shanhong-hong,lichun-yi,zhaohui,yangchao-he,zhangjian-fang.discussionsonthemechanismofthiophenecrackingoverausyzeolite[j].jfuelchemtechnol,2001,29(6):481-485.)
|
| [2] | lib,guow,yuans,huj,wangj,jiaoh.atheoreticalinvestigationintothethiophene-crackingmechanismoverpurebrönstedacidiczeolites[j].jcatal,2008,253(1):212-220.
|
| [3] | pangx,zhangl,suns,liut,gaox.effectsofmetalmodificationsofyzeolitesonsulfurreductionperformanceinfluidcatalyticcrackingprocess[j].cataltoday,2007,125(3):173-177.
|
| [4] | 秦玉才,高雄厚,裴婷婷,郑兰歌,王琳,莫周胜,宋丽娟.噻吩在稀土离子改性y型分子筛上吸附与催化转化研究[j].燃料化学学报,2013,41(7):889-896.(qinyu-cai,gaoxiong-hou,peiting-ting,zhenglan-ge,wanglin,mozhou-sheng,songli-juan.adsorptionandcatalyticconversionofthiopheneony-typezeolitesmodifiedwithrare-earthmetalions[j].jfuelchemtechnol,2013,41(7):889-896.)
|
| [5] | 张畅,秦玉才,高雄厚,张海涛,莫周胜,初春雨,张晓彤,宋丽娟.ce改性对y型分子筛酸性及其催化转化性能的调变机制[j].物理化学学报,2015,31(2):344-352.(zhangchang,qinyu-cai,gaoxiong-hou,zhanghai-tao,mozhou-sheng,chuchun-yu,zhangxiao-tong,songli-juan.modulationmechanismsoftheacidityandcatalyticpropertiesofyzeolitesmodifiedbyceriumcations[j].actaphyschimsin,2015,31(2):344-352.)
|
| [6] | niwam,suzukik,isamotok.identificationandmeasurementsofstrongbrφnstedacidsiteinultrastabley(usy)zeolite[j].jphyschemb,2006,110(1):264-269.
|
| [7] | datkaj,gilb,baranp.irstudyofheterogeneityofohgroupsinzeolitehy-splittingofohandodbands[j].jmolstruct,2003,645(1):45-49.
|
| [8] | almutairismt,mezarib,filonenkoga.influenceofextraframeworkaluminumonthebrφnstedacidityandcatalyticreactivityoffaujasitezeolite[j].chemcatchem,2013,5(2):452-466.
|
| [9] | lis,zhenga,suy,zhangh,chenl,yangj,yec,dengf.brφnsted/lewisacidsynergyindealuminatedhyzeolite:acombinedsolid-statenmrandtheoreticalcalculationstudy[j].jamchemsoc,2007,129(36):11161-11171.
|
| [10] | lis,zhenga,suy,fangh,shenw,yuz,chenl,dengf.extra-frameworkaluminiumspeciesinhydratedfaujasitezeoliteasinvestigatedbytwo-dimensionalsolid-statenmrspectroscopyandtheoreticalcalculations[j].physchemchemphys,2010,12(15):3895-3903.
|
| [11] | wardjw.spectroscopicstudyofthesurfaceofzeolitey.ii.infraredspectraofstructuralhydroxylgroupsandadsorbedwateronalkali,alkalineearth,andrareearthion-exchangedzeolites[j].jphyschem,1968,72(12):4211-4223.
|
| [12] | wardjw.spectroscopicstudyofthesurfaceofzeolitey.part4.—infraredstudiesofstructuralhydroxylgroupsandadsorbedwateronsometransitionmetalion-exchangedzeolites[j].transfaradaysoc,1971,67:1489-1499.
|
| [13] | 宋丽娟,潘明雪,秦玉才,鞠秀芳,段林海,陈晓陆.niy分子筛选择性吸附脱硫性能及作用机理[j].高等学校化学学报,2011,32(3):787-792.(songli-juan,panming-xue,qinyu-cai,juxiu-fang,duanlin-hai,chenxiao-lu.selectiveadsorptiondesulfurizationperformanceandadsorptivemechanismsofniyzeolites[j].chemjchinuniv,2011,32(3):787-792.)
|
| [14] | migdalma,mikulie,dziembajr,majdad,hetmanczykl.thermaldecompositionof(no3)2,(no3)2and(no3)2[j].thermochimacta,2004,419(1):223-229.
|
| [15] | 李宣文,佘励勤,刘兴云.lahy表面与naoh的作用及酸性表面性质研究[j].催化学报,1983,4(1):43-50.(lixuan-wen,sheli-qin,liuxing-yun.studiesontheinteractionbetweennaohandacidicsitesonlahysurfaceandthenatureofacidicsurfaceoflahy[j].chinjcatal,1983,4(1):43-50.)
|
| [16] | niwam,suzukik,isamotok,katadan.identificationandmeasurementsofstrongbrφnstedacidsiteinultrastabley(usy)zeolite[j].jphyschemb,2006,110(1):264-269.
|
| [17] | shiy,zhangw,zhangh,tianf,jiac,cheny.effectofcyclohexeneonthiopheneadsorptionovernayandlanayzeolites[j].fuelprocesstechnol,2013,110:24-32.
|
| [18] | 殷长龙,夏道宏.催化裂化汽油中类型硫含量分布[j].燃料化学学报,2001,29(3):256-258.(yinchang-long,xiadao-hong.distributionofsulfurcompoundsinthefull-rangefccandrfccgasoline[j].jfuelchemtechnol,2001,29(3):256-258.)
|
| [19] | whitinggt,meirerf,valenciad,weckhuysenbertm.selectivestainingofbrönstedacidityinzeolitezsm-5-basedcatalystextrudatesusingthiopheneasaprobe[j].physchemchemphys,2014,16(39):21531-21542.
|
| [20] | jaimesl,delasah.catalyticconversionofthiopheneundermildconditionsoverazsm-5catalyst.akineticmodel[j].indengchemres,2009,48(16):7505-7516.
|
| [21] | yusy,wakut,iglesiae.catalyticdesulfurizationofthiopheneonh-zsm5usingalkanesasco-reactants[j].applcatala:gen,2003,242(1):111-121.
|
| [22] | potapenkoov,doroninvp,sorokinatp.transformationsofthiophenecompoundsundercatalyticcrackingconditions[j].applcatalb:environ,2012,117:177-184.
|
| [23] | 董世伟,秦玉才,阮艳军,王源,于文广,张磊,范跃超,宋丽娟.改性y型分子筛对fcc汽油脱硫性能的研究[j].燃料化学学报,2013,41(3):341-346.(dongshi-wei,qinyu-cai,ruanyan-jun,wangyuan,yuwen-guang,zhanglei,fanyue-chao,songli-juan.performanceofadsorptivedesulfurizationforfccgasolineovermodifiedyzeolites[j].jfuelchemtechnol,2013,41(3):341-346.)
|
| [24] | seosm,parkm,chungdy,limwt.preparationofexcessivelyni2+-exchangedzeolitey(fau,si/al=1.70)anditssingle-crystalstructure[j].jporousmater,2014,21(5):521-530.
|
| [25] | eisenbachd,galleie.infraredspectroscopicinvestigationsrelatingtocokeformationonzeolites:i.adsorptionofhexene-1andn-hexaneonzeolitesoftypey[j].jcatal,1979,56(3):377-389.
|
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