Browsing by Subject "Hydrogen treatments"

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    Aromatization of 1-hexene and 1-octene by gallium/H-ZSM-5 catalysts.
    (Elsevier, 1996) Nash, R; Dry, M; O'Connor, C
    Gallium/H-ZSM-5 zeolite catalysts were tested for the aromatization of long-chain alkenes, namely 1-hexene and 1-octene. Aromatic yields of ca. 70% were obtained, which are similar to those reported in the literature for propene aromatization. The catalysts tested were prepared by impregnation by incipient wetness of gallium nitrate, ion-exchange with gallium nitrate and by physical mixing with β-gallium oxide crystallites. Hydrogen pretreatment improved the selectivity to aromatic products of gallium/H-ZSM-5 catalysts prepared by physical mixing with β-gallium oxide, but decreased aromatic selectivity for catalysts prepared by ion-exchange and impregnation.