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Dehydroisomerization of n-butane over Pt promoted Ga-substituted silicoaluminophosphates

Abstract:

The catalytic transformations of n-butane were performed over a Pt-promoted Ga-substituted silicoaluminophosphate molecular sieve (Pt/ GaAPSO-11), over a Pt-promoted Ga-supported silicoaluminophosphate molecular sieve, and over a Pt-promoted SAPO-11 solid. The results showed similar yields for the formation of isobutane + isobutene, lower yields for the formation of C1-C3 hydrocarbons, for the Ga containing samples, particularly for the Pt/ Ga/SAPO-11 catalyst The latter also showed higher yields for the formation of dehydrogenated products. Different techniques were used to characterize the metallic and acid functions. The possible formation of a Pt-Ga alloy and/or the formation of discrete Pt particles decorated by metallic Ga, are invoked to explain the higher dehydrogenation and lower hydrogenolysis activity shown by the Pt/ Ga/SAPO-11 sample. © 2000 Elsevier Science B.V. All rights reserved.

Año de publicación:

2000

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Article

    Estado:

    Acceso restringido

    Áreas de conocimiento:

    • Catálisis
    • Catálisis

    Áreas temáticas:

    • Tecnología de productos químicos industriales
    • Química analítica
    • Explosivos, combustibles y productos relacionados

    Contribuidores:

    Tovar M.A.Tovar M.A.
    Vieira A.Vieira A.
    Ramírez-Agudelo M.M.Ramírez-Agudelo M.M.
    Carmen Milena LópezCarmen Milena López
    Mendez B.Mendez B.
    Goldwasser J.Goldwasser J.
    Machado F.J.Machado F.J.
    Pfaff C.Pfaff C.
    Betancourt P.Betancourt P.