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学科主题: 物理化学
题名: Comparative study on stability and coke deposition over supported Rh and FePO4 catalysts for oxy-bromination of methane
作者: Lin, Ronghe1;  Ding, Yunjie1, 2;  Wang, Runqin1, 3
通讯作者: 丁云杰
关键词: methane ;  Rh ;  FePO4 ;  oxy-bromination ;  stability ;  coke deposition
刊名: JOURNAL OF ENERGY CHEMISTRY
发表日期: 2014
DOI: 10.1016/S2095-4956(14)60114-5
卷: 23, 期:1, 页:29-34
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: Rhodium- and iron phosphate-based catalysts are by far the most promising catalysts for oxy-bromination of methane (OBM) reaction. However, most literature reported either Rh- or FePO4-based catalysts, and the results were rarely studied in a uniform environmental condition. In this report, comparative study was conducted on silica- and silicon carbide-supported rhodium and iron phosphate catalysts with the main focuses on stability performance and coke deposition. The catalytic results demonstrated that the stability of both Rh- and FePO4-based catalysts was greatly influenced by the supports used, and silicon carbide-supported catalysts showed much better anti-coking ability as compared with silica-supported ones. Temperature-programmed oxidation over the used catalysts further indicated that the coke formation mechanisms were completely different between silica-supported rhodium and iron phosphate catalysts. While cokes might be caused by condensation of CH2Br2 over supported iron phosphate, methane decomposition might be the reason for coke formation over silica-supported rhodium catalyst. These findings might pave the way for designing highly efficient and stable catalysts of the OBM reaction.
关键词[WOS]: OXIDATIVE BROMINATION ;  DIMETHYL ETHER ;  HIGHER HYDROCARBONS ;  DIRECT CONVERSION ;  ACETIC-ACID ;  CONDENSATION ;  HYDROLYSIS ;  SYNGAS ;  METHYL ;  OXIDE
语种: 英语
WOS记录号: WOS:000331667500005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144302
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, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Lin, Ronghe,Ding, Yunjie,Wang, Runqin. Comparative study on stability and coke deposition over supported Rh and FePO4 catalysts for oxy-bromination of methane[J]. JOURNAL OF ENERGY CHEMISTRY,2014,23(1):29-34.
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