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Synthesis of methyl isobutyl ketone using Pt–H[Al]ZSM5 bifunctional catalysts. III. Effect of the nPt/nA parameter on the xPt–H[Al]ZSM5(y) catalysts

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Abstract

Synthesis of 4-methyl-2-pentanone, better known as methyl isobutyl ketone (MIBK), from propanone (Ac) was studied in a fixed-bed and a flow reactor at 160 °C, 1 atm and an H2/Ac molar ratio equal to 0.33, using Pt-H[Al]ZSM5 bifunctional catalysts with variable platinum percentage and Si/Al ratio. The results show that initial total activity to all measured products at t = 0, per acidic site (Ao/nA), residual activity (Ar = A265/A0, ratio of activity after 265 min of stream and the initial total activity to all measured products at t = 0) and initial formation rate of each product per acidic site (Ro/nA) largely depend on the relationship between the number of hydro-dehydrogenating metallic sites and the number of theoretical acidic sites (nPt/nA) present in the catalysts used.

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Authors and Affiliations

  1. Fac. Ingeniería, Universidad Central de Venezuela, PO Box 48057, Caracas, 1041-A, Venezuela

    L. Melo, L. García & G. Giannetto

  2. IUT Región Capital, Dpto. de Química, Caracas, Venezuela

    A. Llanos

  3. Fac. Science, Université de Poitiers, Poitiers, France

    P. Magnoux & M. Guisnet

  4. Inst. Superior Técnico, Lisbon, Portugal

    F. Alvarez

Authors
  1. L. Melo
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  2. A. Llanos
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  3. L. García
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  4. P. Magnoux
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  5. F. Alvarez
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  6. M. Guisnet
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  7. G. Giannetto
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Melo, L., Llanos, A., García, L. et al. Synthesis of methyl isobutyl ketone using Pt–H[Al]ZSM5 bifunctional catalysts. III. Effect of the nPt/nA parameter on the xPt–H[Al]ZSM5(y) catalysts. Catalysis Letters 51, 207–212 (1998). https://doi.org/10.1023/A:1019074126148

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  • DOI: https://doi.org/10.1023/A:1019074126148

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