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题名: Effects of Ce addition on the Pt-Sn/gamma-Al2O3 catalyst for propane dehydrogenation to propylene
作者: Yu, Changlin;  Ge, Qingjie;  Xu, Hengyong;  Li, Wenzhao
关键词: Pt-Sn/gamma-Al2O3 catalyst ;  Ce addition ;  propane dehydrogenation to propylene
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2006-11-23
DOI: 10.1016/j.apcata.2006.08.038
卷: 315, 页:58-67
收录类别: SCI
文章类型: Article
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
英文摘要: The effects of Ce addition on the Pt-Sn/gamma-Al2O3 catalysts for propane dehydrogenation to propylene have been investigated by reaction tests and some physicochemical characterizations like XRD, BET, NH3-TPD, H-2-TPD, H-2-TPR, H-2-chemisorption, CO-FTIR and TPO. The results show that the Ce addition could greatly improve the catalytic performance and catalytic stability of the Pt-Sn/gamma-Al2O3, which is reported as the optimal catalyst for propane dehydrogenation to propylene. We could keep > 38% of propane conversion, > 98% propylene selectivity and > 37% propylene yield over 50 h in the reaction of propane dehydrogenation to propylene over Pt-Sn/Ce-Al2O3 catalysts at 576 degrees C, 3800 h(-1) and H-2/C3H8/Ar = 1/1/5. The presence of Ce in the Pt-Sn/Ce-Al2O3 catalysts could not only stabilize the active states of Pt, Sn and support, but could also suppress the coke accumulation on the catalyst during reaction, and further improve the catalytic performance of Pt-Sn/gamma-Al2O3. (c) 2006 Elsevier B.V. All fights reserved.
关键词[WOS]: TEMPERATURE-PROGRAMMED DESORPTION ;  AUTOMOTIVE EXHAUST CATALYSTS ;  TIN REFORMING CATALYSTS ;  SUPPORTED PLATINUM ;  CARBON-MONOXIDE ;  INFRARED-SPECTROSCOPY ;  BIMETALLIC CATALYSTS ;  POTASSIUM ADDITION ;  OXIDATION-STATE ;  OXYGEN STORAGE
语种: 英语
WOS记录号: WOS:000242775600007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140349
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Grad Sch, Appl Catalysis Lab, Dalian 116023, Peoples R China

Recommended Citation:
Yu, Changlin,Ge, Qingjie,Xu, Hengyong,et al. Effects of Ce addition on the Pt-Sn/gamma-Al2O3 catalyst for propane dehydrogenation to propylene[J]. APPLIED CATALYSIS A-GENERAL,2006,315:58-67.
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