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Oxidative dehydrogenation of 1 -butene to butadiene on α-Fe2O3/ZnAl2O4 and ZnFexAl2-xO4 catalysts

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Abstract

The oxidative dehydrogenation of 1-butene to butadiene was studied over a series of catalysts of iron impregnated on ZnAl2O4 used as a support and also Fe coprecipitated with zinc and aluminum in order to obtain ZnFexAl2-xO4 type catalysts. Results were compared with bulk α-Fe2O3, ZnAl2O4 and ZnFe2O4. X-ray diffraction (XRD) and Mössbauer spectroscopy suggest that in the impregnated catalysts, Fe ions are in strong interaction with the support. These samples have higher butadiene selectivity than coprecipitated ZnFexAl2-xO4 catalysts, in which iron is incorporated into the ZnAl2O4 spinel network. Results suggest also that iron content has a greater effect on butadiene selectivity than the zinc aluminate-iron oxide interaction.

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Authors and Affiliations

  1. Instituto Mexicano del Petróleo, SGIDTTI, Eje Central L. Cardenas No. 152, A.P. 14-805, CP07730, Mexico D.F., Mexico

    J. A. Toledo, M. A. Valenzuela, H. Armendáriz, G. Aguilar-Ríos, B. Zapata, A. Montoya, N. Nava, P. Salas & I. Schifter

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  1. J. A. Toledo
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  2. M. A. Valenzuela
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  3. H. Armendáriz
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  4. G. Aguilar-Ríos
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  5. B. Zapata
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  6. A. Montoya
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  7. N. Nava
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  8. P. Salas
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  9. I. Schifter
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Toledo, J.A., Valenzuela, M.A., Armendáriz, H. et al. Oxidative dehydrogenation of 1 -butene to butadiene on α-Fe2O3/ZnAl2O4 and ZnFexAl2-xO4 catalysts. Catal Lett 30, 279–288 (1994). https://doi.org/10.1007/BF00813694

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  • DOI: https://doi.org/10.1007/BF00813694

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