中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Performance of Pt/MgAPO-11 catalysts in the hydroisomerization of n-dodecane
作者: Yang, XM;  Xu, ZS;  Tian, ZJ;  Ma, HJ;  Xu, YP;  Qu, W;  Lin, LW
通讯作者: 田志坚
关键词: hydroisomerization ;  n-dodecane ;  MgAPO-11 ;  AEL molecular sieves
刊名: CATALYSIS LETTERS
发表日期: 2006-07-01
DOI: 10.1007/s10562-006-0070-6
卷: 109, 期:3-4, 页:139-145
收录类别: SCI
文章类型: Article
部门归属: 8
项目归属: 802
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: MgAPO-11 molecular sieves with varying Mg contents synthesized by the hydrothermal method were used as supports for bifunctional Pt/MgAPO-11 catalysts. MgAPO-11 molecular sieves and the corresponding catalysts were characterized by X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), temperature-programmed desorption of NH3 (NH3-TPD), differential thermogravimetric (DTG) analysis, temperature-programmed reduction of H-2 (H-2-TPR), H-2 chemisorption and catalytic reaction evaluation. The results indicated that the acidity generated via the substitution of Mg2+ for Al3+ in the framework increased with the Mg content. Acting as acidic components, the MgAPO-11 molecular sieves loaded with Pt were tested in the hydroisomerization of n-dodecane. Optimum isomer yield was obtained over the Pt/MgAPO-11 catalyst that had neither the highest acidity nor the highest Pt loading among the tested catalysts. In fact, the activity and the isomer yield both could attain a maximum on 0.5 wt.% Pt/MgAPO-11 catalysts with differing Mg contents. A lower Mg content resulted in an insufficient acidity, whilst a higher Mg content weakened the dehydrogenation/hydrogenation function of the Pt. These inappropriate balances between the acidic and the metallic functions of the catalysts would lead to low activities and isomer yields. On the other hand, the 0.5 wt.% Pt/MgAPO-11(3) catalyst was found to have a good balance between the acidic and the metallic functions, and thus exhibited both high activity and isomer yield in comparison with the conventional 0.5 wt.% Pt/SAPO-11 catalyst.
关键词[WOS]: MOLECULAR-SIEVES ;  ACID STRENGTH ;  HEPTANE ;  HYDROCRACKING ;  ISOMERIZATION ;  PT/SAPO-11 ;  SAPO-11 ;  DECANE ;  HYDROCONVERSION ;  DEHYDRATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000238155200004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97947
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Yang, XM,Xu, ZS,Tian, ZJ,et al. Performance of Pt/MgAPO-11 catalysts in the hydroisomerization of n-dodecane[J]. CATALYSIS LETTERS,2006,109(3-4):139-145.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Yang, XM]'s Articles
 [Xu, ZS]'s Articles
 [Tian, ZJ]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Yang, XM]‘s Articles
 [Xu, ZS]‘s Articles
 [Tian, ZJ]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace