Aromatization of methane in the absence of oxygen over Mo-based catalysts supported on different types of zeolites

	Aromatization of methane in the absence of oxygen over Mo-based catalysts supported on different types of zeolites
	Zhang, CL ; Li, SA ; Yuan, Y ; Zhang, WX ; Wu, TH ; Lin, LW
刊名	catalysis letters
	1998
卷号	56 期号:4 页码:207-213
关键词	zeolite structure methane aromatization MoO3 benzene shape-selective function
英文摘要	the catalytic performance of mo-based catalysts supported on various zeolites has been studied for methane aromatization in the absence of oxygen in a fixed-bed continuous-flow quartz reactor, and their catalytic properties are correlated with features of zeolite structure. it was found that h-type silica-alumina zeolites, such as zsm-5, zsm-8, zsm-11 and beta possessing two-dimensional structure and pore diameter equaling the dynamic diameter of a benzene molecule (about 6 angstrom) simultaneously, are fine supports for methane activation and aromatization catalysts. among them, moo3/h-zsm-11 has the best activity and stability; for instance, a methane conversion of 8.0% and selectivity higher than 90% was obtained at 973 k. the catalytic performance of moo3/h-zsm-8 is somewhat lower than that of moo3/h-zsm-5, while activity of moo3/h-beta is lower than that of moo3/h-zsm-8. catalysts supported on h-mcm-41 and h-sapo-34 exhibit low activity for methane aromatization and those supported on h-mor, h-x and h-y give only a little amount of ethylene. over moo3/h-sapo-5 and moo3/h-sapo-11 no hydrocarbons were detected.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, physical
研究领域[WOS]	chemistry
关键词[WOS]	mo/hzsm-5 catalysts ; dehydrogenation ; benzene ; conversion ; activation
收录类别	SCI
语种	英语
WOS记录号	WOS:000078510300008
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/138468]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zhang, CL,Li, SA,Yuan, Y,et al. Aromatization of methane in the absence of oxygen over Mo-based catalysts supported on different types of zeolites[J]. catalysis letters,1998,56(4):207-213.
APA	Zhang, CL,Li, SA,Yuan, Y,Zhang, WX,Wu, TH,&Lin, LW.(1998).Aromatization of methane in the absence of oxygen over Mo-based catalysts supported on different types of zeolites.catalysis letters,56(4),207-213.
MLA	Zhang, CL,et al."Aromatization of methane in the absence of oxygen over Mo-based catalysts supported on different types of zeolites".catalysis letters 56.4(1998):207-213.