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Methane aromatization on Re/HZSM-5 system under non-oxygen condition
Su, LL; Ma, D; Liu, XM; Xu, YD; Bao, XH
关键词Methane Aromatization Rhenium Molybdenum Hzsm-5 Zeolite Supported Catalyst
刊名CHINESE JOURNAL OF CATALYSIS
2002
23期:1页:41-45
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 ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]MO-BASED CATALYSTS ; MAS NMR ; MO/HZSM-5 ; BENZENE ; DEHYDROGENATION ; TRANSFORMATION ; NAPHTHALENE ; ZEOLITES
英文摘要Re/HZSM-5 is also a better catalyst for methane aromatization compared with Mo/HZSM-5 catalyst. The best Re loading is 10%. The original performance of Re/HZSM-5 is much better than Mo/HZSM-5, but its lifetime is much shorter than the latter. The acidity of the catalyst, the change of framework aluminum after impregnation of Re species and the reduction capacity of Re/HZSM-5 were investigated by using NH3-TPD, MAS NMR and H-2-TPR. The results indicated that the acidity of the catalyst also plays a key role in the reaction, and the catalytic performance of the catalyst is probably proportional to its acidity. But it is not that the stronger the acidity is and the more the amount of acid sites and the better the performance of the catalyst. After impregnation of Re, the metal species interacts with framework aluminum intensively and causes the dealumination of the catalyst. Re/HZSM-5 tends to be reduced by H-2 at lower temperature compared with Mo/HZSM-5, and the active species after reduction is singleness.
语种英语
WOS记录号WOS:000173814100010
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139228
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Su, LL,Ma, D,Liu, XM,et al. Methane aromatization on Re/HZSM-5 system under non-oxygen condition[J]. CHINESE JOURNAL OF CATALYSIS,2002,23(1):41-45.
APA Su, LL,Ma, D,Liu, XM,Xu, YD,&Bao, XH.(2002).Methane aromatization on Re/HZSM-5 system under non-oxygen condition.CHINESE JOURNAL OF CATALYSIS,23(1),41-45.
MLA Su, LL,et al."Methane aromatization on Re/HZSM-5 system under non-oxygen condition".CHINESE JOURNAL OF CATALYSIS 23.1(2002):41-45.
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