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Dehydrogenation of long chain paraffins over supported Pt-Sn-K/Al2O3 catalysts: A study of the alumina support effect
He, Songbo1,2; Sun, Chenglin1; Bai, Ziwu3; Dai, Xihai3; Wang, Bin3; Sun CL(孙承林)
关键词Dehydrogenation Long Chain Paraffins Alumina Support Effect Pore Size Distribution Pt-sn Catalysts
刊名APPLIED CATALYSIS A-GENERAL
2009-03-01
DOI10.1016/j.apcata.2008.12.024
356期:1页:88-98
收录类别SCI
文章类型Article
部门归属9
项目归属902
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]Chemistry, Physical ; Environmental Sciences
研究领域[WOS]Chemistry ; Environmental Sciences & Ecology
关键词[WOS]PT-SN CATALYSTS ; NAPHTHA REFORMING CATALYSTS ; N-BUTANE DEHYDROGENATION ; PROPANE DEHYDROGENATION ; PT-SN/AL2O3 CATALYSTS ; STRUCTURAL-CHARACTERIZATION ; PT-SN/GAMMA-AL2O3 CATALYST ; ISOBUTANE DEHYDROGENATION ; MERCURY POROSIMETRY ; METAL PRECURSORS
英文摘要The support effect on the Pt-Sn-K/Al2O3 Catalysts for the long chain paraffins dehydrogenation to mono-olefins has been investigated by the test dehydrogenation reaction of n-octadecane. The catalysts were characterized by using different techniques: BET, MIP, XRD, TEM, SEM, CO-chemisorption, H-2-TPR, H-2-TPD, NH3-TPD and TG-DTA. Results show that the pore structure and the surface characteristic of the alumina supports strongly affect the catalytic performance. The support effect can be divided into three parts: (I) the BET and pore size distribution govern the Pt dispersion of the catalysts, resulting in influencing the dehydrogenation activity; (II) the inherent acidity controls the acidity of the catalysts, bringing on the different product selectivity: (III) the pore volume provides the effective capability for carbon deposition, thus changing the lifetime of the catalysts. These functions should be adjusted for the alumina supports to achieve an optimal catalytic performance. The ideal catalysts were selected to test the lifetime of the catalysts on the dehydrogenation of n-C-16-C-19. High activity (the average conversion is 11.6%) and perfect selectivity (the average selectivity is 92%) were exhibited during the reaction time of 960 h. (C) 2009 Published by Elsevier B.V.
语种英语
原文出处查看原文
WOS记录号WOS:000263981800012
引用统计
被引频次:63[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/101513
专题中国科学院大连化学物理研究所
通讯作者Sun CL(孙承林)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.PetroChina Fushun Petrochem Co, Fushun 113001, Liaoning, Peoples R China
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GB/T 7714
He, Songbo,Sun, Chenglin,Bai, Ziwu,et al. Dehydrogenation of long chain paraffins over supported Pt-Sn-K/Al2O3 catalysts: A study of the alumina support effect[J]. APPLIED CATALYSIS A-GENERAL,2009,356(1):88-98.
APA He, Songbo,Sun, Chenglin,Bai, Ziwu,Dai, Xihai,Wang, Bin,&孙承林.(2009).Dehydrogenation of long chain paraffins over supported Pt-Sn-K/Al2O3 catalysts: A study of the alumina support effect.APPLIED CATALYSIS A-GENERAL,356(1),88-98.
MLA He, Songbo,et al."Dehydrogenation of long chain paraffins over supported Pt-Sn-K/Al2O3 catalysts: A study of the alumina support effect".APPLIED CATALYSIS A-GENERAL 356.1(2009):88-98.
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