Title of article :
Acidity and catalytic properties for methane conversion of Mo/HZSM-5 catalyst modified by reacting with organometallic complex Original Research Article
Author/Authors :
Peng Wu، نويسنده , , Qiubin Kan، نويسنده , , Xuxu Wang، نويسنده , , Dongyang Wang، نويسنده , , Haijun Xing، نويسنده , , Piaoping Yang، نويسنده , , Tonghao Wu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
6
From page :
39
To page :
44
Abstract :
The selective modification of the external surface of HZSM-5 by large organometallic complexes was used to reduce the densities of external acid sites and MoOx species retained at external surfaces during the exchange process. The amounts of acid sites and the catalytic properties for non-oxidative aromatization of methane over modified and unmodified samples were studied by NH3-TPD, FT-IR of d3-acetonitrile adsorption, and TGA measurements. It was found that acid sites and active MoOx species mainly located within the channels of the modified zeolites, and these modified Mo/HZSM-5 catalysts showed higher shape-selectivity to major product benzene and lower formation rates and selectivities for large hydrocarbons that normally cause the deactivation of catalysts.
Keywords :
Organometallic complex , Acidity , Modified , Mo/HZSM-5 , Methane aromatization
Journal title :
Applied Catalysis A:General
Serial Year :
2005
Journal title :
Applied Catalysis A:General
Record number :
1151954
Link To Document :
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