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Study of coke deposition on Mo/HZSM-5 catalyst in methane dehydro-aromatization under non-oxidative conditions
Liu, HM; Li, T; Tian, BL; Xu, YD
关键词Methane Dehydro-aromatization Mo/hzsm-5 Zeolite Temperature-programmed Reaction Coke Deposition
刊名CHINESE JOURNAL OF CATALYSIS
2001-07-01
22期:4页:373-376
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]DEHYDROGENATION ; BENZENE ; SURFACE
英文摘要The results of TPH (temperature-programmed hydrogenation), TPCO2 (temperature-programmed CO2 reaction) and TPO (temperature-programmed oxidation) for the 6% Mo/HZSM-5 catalyst after TPSR (temperature-programmed surface reaction) illustrated that various coke deposits are formed during the reaction of methane dehydro-aromatization in the absence of oxygen. The TPO profiles of the coked catalyst showed two peaks. The TPH experiment resulted in the decrease of the area of the peak at high temperature, but had no effect on the area of the peak at low temperature. Meanwhile, the TPCO2 experiment exhibited obvious decrease of the both peak areas. On the basis of TPSR, TPH and TPCO2 experiments and the corresponding TG (thermogravimetry), the quantitative analysis of the coke amount was proceeded. The results showed that there are three types of coke deposits. One can mainly react with H-2, the other can be eliminated by CO2, and the third one may exist in Mo2C, an active species for the title reaction.
语种英语
WOS记录号WOS:000170470800015
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被引频次:6[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/321008/138962
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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Liu, HM,Li, T,Tian, BL,et al. Study of coke deposition on Mo/HZSM-5 catalyst in methane dehydro-aromatization under non-oxidative conditions[J]. CHINESE JOURNAL OF CATALYSIS,2001,22(4):373-376.
APA Liu, HM,Li, T,Tian, BL,&Xu, YD.(2001).Study of coke deposition on Mo/HZSM-5 catalyst in methane dehydro-aromatization under non-oxidative conditions.CHINESE JOURNAL OF CATALYSIS,22(4),373-376.
MLA Liu, HM,et al."Study of coke deposition on Mo/HZSM-5 catalyst in methane dehydro-aromatization under non-oxidative conditions".CHINESE JOURNAL OF CATALYSIS 22.4(2001):373-376.
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