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Influence of oxygen addition on the reaction of propane catalytic dehydrogenation to propylene over modified Pt-based catalysts
Yu, Changlin; Ge, Qingjie; Xu, Hengyong; Li, Wenzhao; Xu HY(徐恒泳); Xu HY(徐恒泳)
刊名INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
2007-12-05
DOI10.1021/ie0704952
46期:25页:8722-8728
收录类别ISTP ; SCI
文章类型Article
部门归属8
项目归属801
产权排名1;1
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]HYDROGEN COMBUSTION SHC ; SUPPORTED PLATINUM ; CARBON-MONOXIDE ; PROCESS MODE ; CHEMISORPTION ; REDUCTION ; SPECTROSCOPY ; PROPENE ; CERIA ; CEO2
英文摘要The influences of oxygen addition to catalytic dehydrogenation system on the structure and the dehydrogenation performance of Pt-based catalysts were investigated. The results showed that a small amount of oxygen addition into the reaction system could greatly improve the catalytic performance of Pt-Sn/Ce-gamma-Al2O3 catalyst although it evidently decreased the catalytic stability of Pt/gamma-Al2O3, Pt-Sn/gamma-Al2O3, and Pt/Ce-gamma-Al2O3 catalysts. The addition of a small amount of oxygen can decrease the pressure of hydrogen, eliminate coke, and provide partial heat for catalytic dehydrogenation reaction. Hydrogen chemisorption results indicated that steam could reduce the interactions between metal and support, thus promoting the sintering of platinum particles. That adverse effect of steam on the structure on Pt-Sn/Ce-gamma-Al2O3 was moderate, but it was serious on other Pt-based catalysts due to low-stability platinum particles. Both the promoting effect of Ce on the propane conversion and the inhibiting effect of Sri on the CO, formation could be simultaneously achieved during the reaction over Pt-Sn/Ce-gamma-Al2O3,catalyst. At 546 degrees C, a 50% yield of propylene improvement was obtained due to the small oxygen addition.
语种英语
原文出处查看原文
WOS记录号WOS:000251244900045
引用统计
被引频次:19[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/321008/99581
专题中国科学院大连化学物理研究所
通讯作者Xu HY(徐恒泳); Xu HY(徐恒泳)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Grad Sch, Appl Catalysis Lab, Dalian 116023, Peoples R China
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GB/T 7714
Yu, Changlin,Ge, Qingjie,Xu, Hengyong,et al. Influence of oxygen addition on the reaction of propane catalytic dehydrogenation to propylene over modified Pt-based catalysts[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2007,46(25):8722-8728.
APA Yu, Changlin,Ge, Qingjie,Xu, Hengyong,Li, Wenzhao,徐恒泳,&徐恒泳.(2007).Influence of oxygen addition on the reaction of propane catalytic dehydrogenation to propylene over modified Pt-based catalysts.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,46(25),8722-8728.
MLA Yu, Changlin,et al."Influence of oxygen addition on the reaction of propane catalytic dehydrogenation to propylene over modified Pt-based catalysts".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 46.25(2007):8722-8728.
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