|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
钨含量对固体超强酸催化剂pd-so42-/zro2-wo3异构化性能的影响
, PP. 487-493
Keywords: 固体超强酸,催化剂,钨,含量,异构化
Abstract:
？为了研究pd-so42-/zro2-wo3型固体超强酸催化剂的异构化性能,以正戊烷异构化为探针反应,考察了钨(w)含量对催化剂异构化性能的影响。采用x射线衍射(xrd)、ft-ir、h2-tpr、比表面积测定(bet)、热重-差热分析(tg-dta)和氨-程序升温脱附(nh3-tpd)手段对催化剂进行了表征,分析了wo3含量对催化剂酸性、比表面积、氧化还原能力以及晶体结构的影响。结果表明,当wo3的质量分数为13%焙烧温度为600℃时,pd-so42-/zro2-wo3固体超强酸催化剂的催化活性最好。在反应温度260℃,压力2.0mpa,质量空速1.0h-1,氢油比为4.0时,异物烷产率为40.1%。在80h内异戊烷收率可稳定在38%左右,选择性在95.3％以上。
| [1] | 高滋,华伟明,陈建民,唐颐.正戊烷异构化反应表征固体超强酸性[j].物理化学学报,1994,10:897~902.(gaozi,huawei-ming,chenjian-min,tangyi.characterizationofsolidsuperaciditybypentaneisomerizationreaction[j].actaphysico-chimicasinica,1994,10:897-902.)
|
| [2] | 黄凯,乔宏琴.so42-/zro2型固体超强酸催化剂的改性[j].东南大学学报(自然科学版),2010,40(5):1003-1008.(huangkai,qiaohong-qin.modificationofso42-/zro2solidsuperacidcatalysts[j].journalofsoutheastuniversity(naturalscienceedition),2010,40(5):1003-1008.)
|
| [3] | hinom,aratak.synthesisofsolidsuperacidoftungstenoxidesupportedonzirconiaanditscatalyticactionforreactionsofbutaneandpentane[j].jchemsoc,chemcommun,1988,12:1259-1260.
|
| [4] | 孙闻东,赵振波,楚文玲,郭川,叶兴凯,吴越.wo3/zro2固体强酸催化剂上异丁烷-丁烯烷基化反应的研究:iw负载量和焙烧温度的影响[j].高等学校化学学报2000,21(3):448-452.(sunwen-dong,zhaozhen-bo,chuwen-ling,guochuan,yexing-kai,wuyue.studiesonthealkylationofisobutanewithbuteneoverwo3/zro2strongsolidacid:ⅰeffectofpreparation,loadofwo3andcalcinationtemperature[j].chemicalresearchinchineseuniversities,2000,21(3):448-452.)
|
| [5] | vijays,wolfee,millerjt,kropfaj.ahighlyactiveandstableplatinum-modifiedsulfatedzirconiacatalyst:1preparationandactivityforn-pentaneisomerization[j].applcatala,2004,264(1):117-124.
|
| [6] | morterrac,cerratog,dicieros,signorettom,pinnaf,serukulg.platinum-promotedandunprometedsulfatedzirconiacatalystspreparedbyaone-stepaerogelprocedure[j].jcatal,1997,165(2):172-183.
|
| [7] | reddyabm,sreekanthapm,yamadaby,kobayashibtj.surfacecharacterizationandcatalyticactivityofsulfate-,molybdate-andtungstate-promotedal2o3–zro2solidacidcatalysts[j].jmolcatala,2005,227(3):81-89.
|
| [8] | francoisd,gregoriop,nicolask,valeriek.activationandisomerizationofhydrocarbonsoverwo3/zro2catalysts:iiinfluenceoftungstenloadingoncatalyticactivity:mechanisticstudiesandcorrelationwithsurfacereducibilityandtungstensurfacespecies[j].jcatal,2008,256(2):159-171.
|
| [9] | martinsrl,schmalm.methaneactivationonsuperacidiccatalystsbasedonoxoanionmodifiedzirconiumoxide[j].applcatala,2006,308:143-152.
|
| [10] | reddybm,sreekanthpm,lakshmanana.sulfatedzirconiaasanefficientcatalystfororganicsynthesisandtransformationreactions[j].jmolcatala,2005,237:93-100.
|
| [11] | lopezde,goodwinjgjr,bruceda.esterificationandtransesterificationusingmodified-zirconiacatalysts[j].applcatala,2008,339(1):76-83.
|
| [12] | 黄银燕,赵壁英,谢有畅.复合固体超强酸催化剂so2-4/zro2-wo3的结构研究[j].物理化学学报1995,11(6):547-552.(csx]huangyin-yan,zhaobi-ying,xieyou-chang.structuralcharacterizationofsolidsuperacidcatalystso2-4/zro2-wo3[j].actaphysico-chimicasinica,1995,11(6):547-552.)
|
| [13] | 宋华,董鹏飞,张旭.al含量对pt-so42-/zro2-al2o3固体超强酸催化正戊烷异构化性能的影响[j].物理化学学报,2010,26(8):2229-2234.(songhua,dongpeng-fei,zhangxu.effectofalcontentonthen-pentaneisomerizationofthesolidsuperacidpt-so42-/zro2-al2o3[j].actaphysico-chimicasinica,2010,26(8):2229-2234.)
|
| [14] | 宋华,董鹏飞,张旭.al含量对pt-s2o82-/zro2-al2o3固体超强酸催化剂异构化性能的影响[j].高等学校化学学报,2010,31(7):1426-1430.(songhua,dongpeng-fei,zhangxu.effectofalcontentsontheisomerizationperformanceofsolidsuperacidpt-s2o82-/zro2-al2o3[j].chemicalresearchinchineseuniversities,2010,31(7):1426-1430.)
|
| [15] | 徐平.固体强酸wo3/zro2上的正庚烷异构化应用研究.北京:中国科学院研究生院,2005.(xuping.studyofn-heptaneisomerizationoverwo3/zro2solidsuperacid.beijing:graduateuniversityofchineseacademyofsciences,2005.)
|
| [16] | 徐平,徐云鹏,滕飞,胡胜,谭明伟,徐竹生,田志坚.固体强酸催化剂pd/wo3-zro2的制备及其对正庚烷异构化反应的催化性能[j].催化学报,2005,26(9):750-754.(xuping,xuyun-peng,tengfei,husheng,tanming-wei,xuzhu-sheng,tianzhi-jian.preparationofpd/wo3-zro2solidsuperacidcatalystanditscatalyticperformanceforn-heptanehydroisomerization[j].chinesejournalofcatalysis,2005,26(9):750-754.)
|
| [17] | 周晓龙,余国贤,金亚清.pt和al2o3改性so42-/zro2己烷异构化反应性能[j].华东理工大学学报(自然科学版),2007,33(3):309-13.(zhouxiao-long,yuguo-xian,jinya-qing.n-hexaneisomerizationoverptandal2o3-promotedso42-/zro2[j].journalofeastchinauniversityofscienceandtechnology,2007,33(3):309-313.)
|
| [18] | 姚瑞平,张铭金,杨俊,易德莲,徐君,邓风,岳勇,叶朝辉.so3/γ-al2o3固体酸催化剂的制备、结构与酸性表征[j].化学学报,2005,63(4):269-273.(yaorui-ping,zhangming-jin,yangjun,yide-lian,xujun,dengfeng,yueyong,yezhao-hui.preparationofso3/γ-al2o3solidacidcatalystandcharacterizationofitsstructureandacidity[j].actachimicasinica,2005,63(4):269-273.)
|
| [19] | 黄银燕,张改莲,张文朴.复合固体超强酸催化剂so42-/zro2-wo3的研究—合成及其酸性测定[j].北京师范大学学报(自然科学版),1992,28(1):78-82.(huangyin-yan,zhanggai-lian,zhangwen-pu.thestudyofacomplexsolidsuperacidcatalystso42-/zro2-wo3:thesynthesisandthecharacterizationofitsacidity[j].journalofbeijingnomaluniversity(naturalscienc),1992,28(1):78-82.)
|
| [20] | yadavgd,murkutead.preparationofthenovelmesoporoussolidacidcatalystudcat-4viasynergismofpersulfatedaluminaandzirconiaintohexagonalmesoporoussilicaforalkylationreactions[j].advsynthcatal,2004,346(4):389-394.
|
| [21] | sohnjr,leesh,limjs.newsolidsuperacidcatalystpreparedbydopingzro2withceandmodifyingwithsulfateanditscatalyticactivityforacidcatalysis[j].cataltoday,2006,116(2):143-150.
|
| [22] | 张存,马春艳,菅盘铭,刘晓勤.改进制备过程对wo3/zro2固体超强酸结构和酸性的影响[j].高校化学工程学报,2003,23(4):667-672.(zhangcun,machun-yan,jianpan-ming,liuxiao-qin.effectoftheimprovedpreparationmethodonthestructureandacidityofwo3/zro2solidsuperacid[j].journalofchemicalengineeringofchineseuniversities,2003,23(4):667-672.)
|
| [23] | digregoriof,kellerv.activationandisomerizationofhydrocarbonsoverwo3/zro2catalysts:ipreparation,characterization,andx-rayphotoelectronspectroscopystudies[j].jcatal,2004,225(1):45-55.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
