Selective conversion of methane to aromatic hydrocarbons on large crystallite zeolite catalysts with mesoporous structure


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Large crystallite mesoporous MFI (ZSM-5) zeolite was synthesized by using carbon nano-powder as a secondary template. The surface properties, morphological and phase composition of the synthesized material and of the commercial ZSM-5 (Zeolyst) zeolite were studied by nitrogen porosimetry, XRD and scanning electron microscopy. The results showed that the volume of mesopores volume increases with development of a secondary mesoporosity in the structure of zeolite. The obtained zeolite supports were used to prepare molybdenum-containing catalysts for the methane aromatization by solid phase preparation technique. Based on the XPS data, molybdenum particles in these catalysts are characterized by more uniform size distribution. The formation of a secondary pore structure restrains the carbon deposit formation as well as increases the methane conversion and the yield of the aromatic compounds.

作者简介

S. Mikhaylov

N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences; LLC “RN-RDC”

Email: mik@ioc.ac.ru
俄罗斯联邦, 47 Leninsky prosp., Moscow, 119991; Build. 2, 55/1 Leninsky prosp., Moscow, 119333

N. Mamonov

LLC “RN-RDC”

Email: mik@ioc.ac.ru
俄罗斯联邦, Build. 2, 55/1 Leninsky prosp., Moscow, 119333

L. Kustov

N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences

Email: mik@ioc.ac.ru
俄罗斯联邦, 47 Leninsky prosp., Moscow, 119991

M. Mikhaylov

N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences; LLC “RN-RDC”

编辑信件的主要联系方式.
Email: mik@ioc.ac.ru
俄罗斯联邦, 47 Leninsky prosp., Moscow, 119991; Build. 2, 55/1 Leninsky prosp., Moscow, 119333

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