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Methane aromatization in the absence of an added oxidant and the bench scale reaction test; Methane aromatization in the absence of an added oxidant and the bench scale reaction test
Lu, YA; Xu, ZS; Tian, ZJ; Zhang, T; Lin, LW
关键词Methane Aromatization Methane Aromatization Bench Scale Test Bench Scale Test Steam Treatment Steam Treatment Activation Procedure Activation Procedure Mo2c Mo2c
刊名CATALYSIS LETTERS ; CATALYSIS LETTERS
1999 ; 1999
62期:2-4页:215-220
收录类别SCI ; SCI
文章类型Article ; Article
WOS标题词Science & Technology ; Science & Technology ; Physical Sciences ; Physical Sciences
类目[WOS]Chemistry, Physical ; Chemistry, Physical
研究领域[WOS]Chemistry ; Chemistry
关键词[WOS]MO/HZSM-5 CATALYSTS ; MO/HZSM-5 CATALYSTS ; ZEOLITE CATALYSTS ; ZEOLITE CATALYSTS ; COKE FORMATION ; COKE FORMATION ; BENZENE ; BENZENE ; DEHYDROGENATION ; DEHYDROGENATION ; CONVERSION ; CONVERSION ; HZSM-5 ; HZSM-5 ; OXYGEN ; OXYGEN ; ZSM-5 ; ZSM-5 ; OLIGOMERIZATION ; OLIGOMERIZATION
英文摘要A bench scale reaction test for methane aromatization in the absence of an added oxidant was performed and its reaction result evaluated based on the carbon balance of the system. The result was compared with those obtained from the micro-reaction test to ensure the accuracy of the internal standard analyzing method employed in this paper. The catalytic performances of modified Mo/HZSM-5 catalysts were examined. It was found that pre-treatment by steam on HZSM-5 weakened the serious deposition of coke, and pre-impregnation of n-ethyl silicate on HZSM-5 could improve the conversion of CH4, but had little effect on coke formation. A low temperature activation procedure including pre-reduction of the catalyst with methane prevents the zeolite lattice from being seriously destroyed by high valence state Mo species when the Mo loading is high. It was suggested that Mo2C species detected by XRD spectra was the active phase for CH4 aromatization.; A bench scale reaction test for methane aromatization in the absence of an added oxidant was performed and its reaction result evaluated based on the carbon balance of the system. The result was compared with those obtained from the micro-reaction test to ensure the accuracy of the internal standard analyzing method employed in this paper. The catalytic performances of modified Mo/HZSM-5 catalysts were examined. It was found that pre-treatment by steam on HZSM-5 weakened the serious deposition of coke, and pre-impregnation of n-ethyl silicate on HZSM-5 could improve the conversion of CH4, but had little effect on coke formation. A low temperature activation procedure including pre-reduction of the catalyst with methane prevents the zeolite lattice from being seriously destroyed by high valence state Mo species when the Mo loading is high. It was suggested that Mo2C species detected by XRD spectra was the active phase for CH4 aromatization.
语种英语 ; 英语
原文出处查看原文 ; 查看原文
WOS记录号WOS:000083512000021 ; WOS:000083512000021
引用统计
被引频次:33[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/321008/85223
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Lu, YA,Xu, ZS,Tian, ZJ,et al. Methane aromatization in the absence of an added oxidant and the bench scale reaction test, Methane aromatization in the absence of an added oxidant and the bench scale reaction test[J]. CATALYSIS LETTERS, CATALYSIS LETTERS,1999, 1999,62, 62(2-4):215-220, 215-220.
APA Lu, YA,Xu, ZS,Tian, ZJ,Zhang, T,&Lin, LW.(1999).Methane aromatization in the absence of an added oxidant and the bench scale reaction test.CATALYSIS LETTERS,62(2-4),215-220.
MLA Lu, YA,et al."Methane aromatization in the absence of an added oxidant and the bench scale reaction test".CATALYSIS LETTERS 62.2-4(1999):215-220.
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