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- W4281766827 abstract "Dehydrogenation of ethane to ethylene was investigated on Pt/MFI-type zincosilicate at 550 ºC using a fix-bed, continuous-flow reactor. The catalyst was characterized with XRD, nitrogen adsorption/desorption isotherm, TEM, X-ray absorption spectroscopy, NH 3 - and 2,6-dimethylpyridine-TPD. Conversion close to the equilibrium conversion with high ethylene selectivity > 99% was attained on 0.05%Pt/zincosilicate catalyst. The stability of catalyst was high with Pt/zincosilicate, however, deactivation was observed with Pt/aluminosilicate. Location of Pt was studied comparing NH 3 - and 2,6-dimethylpyridine-TPD, and it was revealed that Pt near the zeolite pore mouth was responsible for the high and stable catalytic performance of Pt/zincosilicate. High conversion close to equilibrium conversion, > 99% selectivity to ethylene, excellent stability. • MFI-type zincosilicates with Si/Zn = 5–100 were successfully prepared. • Dehydrogenation of ethane to ethylene proceeded at high conversion and selectivity with excellent stability. • Catalytic performance of Pt/MFI-type zincosilicate was superior to Pt/MFI-type aluminosilicate. • NH 3 - and 2,6-dimethylpyridine-TPD suggested location of Pt in the micropore near the pore mouth." @default.
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- W4281766827 date "2023-02-01" @default.
- W4281766827 modified "2023-09-29" @default.
- W4281766827 title "Dehydrogenation of ethane to ethylene on Pt/zincosilicate" @default.
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- W4281766827 doi "https://doi.org/10.1016/j.cattod.2022.05.048" @default.
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