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Issue
Korean Journal of Chemical Engineering,
Vol.28, No.2, 370-377, 2011
Dehydrogenation of isobutane over Sn/Pt/Na-ZSM-5 catalysts: The effect of SiO2/Al2O3 ratio, amount and distribution of Pt nanoparticles on the catalytic behavior
Vaezifar S, Faghihian H, Kamali M
Sn/Pt/Na-ZSM-5 was used as catalyst for the dehydrogenation of isobutane, and the effect of SiO2/Al2O3 ratio and the dispersion of Pt nanoparticles on the conversion and product selectivity were studied under atmospheric pressure at 848 K. The catalysts were characterized by various techniques such as H2 chemisorption, TEM, SEM, EDX, XRD, FT-IR, TG/DTG, elemental analysis by XRF and ICP techniques. Higher dispersion of Pt nanoparticles in the catalyst with SiO2/Al2O3 ratio of 40 resulted in higher selectivity for isobutene.
Keywords: Na-ZSM-5; SiO2/Al2O3 Ratio; Bimetallic Catalysts; Pt/Sn Nanoparticles; Dehydrogenation of Isobutane
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