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- W2350992252 abstract "ZSM-5 catalysts were modified by the addition of Ga through impregnation and hydrothermal methods respectively.X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),temperature-programmed desorption of ammonia(NH3-TPD)and scanning electron microscopy(SEM)techniques were employed to analyze the property of catalyst.The results show that two methods for Ga addition has little influence on the skeletal structure,pore structure of catalysts and morphology of catalyst particles,but they did have impact on the catalyst acidity.Ga modification by impregnation method has less influence on the surface acidity,and only slightly reduce the number of strong acid sites.Ga introduced by hydrothermal method increases the number of both weak and strong acid sites apparently.The catalytic performance of catalysts for methanol aromatization was studied in a fixed bed reactor.It can be found that the catalytic property of the HZSM-5 modified by Ga through hydrothermal method are better than that of the HZSM-5 modified by Ga through impregnation method.In addition,Ga has a positive effect to suppress the carbon deposition of HZSM-5 in methanol aromatization." @default.
- W2350992252 created "2016-06-24" @default.
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- W2350992252 date "2011-01-01" @default.
- W2350992252 modified "2023-09-24" @default.
- W2350992252 title "Property of HZSM-5 catalysts promoted by Ga in methanol aromatization" @default.
- W2350992252 hasPublicationYear "2011" @default.
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