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Study of Catalytic Properties of SAPO-40

Lourenco, J.P. ; Ribeiro', M.F. ; Ribeiro, F.R. ; Rocha, J. ; Gabelica, Z. ; Dumont, N. ; Derouane, E.G.

Studies in Surface Science and Catalysis, 1994, Vol.84, p.867-874 [Periódico revisado por pares]

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Título:
Study of Catalytic Properties of SAPO-40
Autor: Lourenco, J.P. ; Ribeiro', M.F. ; Ribeiro, F.R. ; Rocha, J. ; Gabelica, Z. ; Dumont, N. ; Derouane, E.G.
É parte de: Studies in Surface Science and Catalysis, 1994, Vol.84, p.867-874
Descrição: A series of SAPO-40 samples with Si atomic fraction from 0.06 to 0.12 has been synthesised. The study of their catalytic properties has been evaluated by comparison with SAPO-37, USHY and mordenite, using as model reaction the cracking of n-heptane. The catalytic activity of SAPO-40 samples depends on the Si content, and is probably associated with the non-uniform distribution of silicon. SAPO-40 showed a stronger acidity than SAPO-37 with a similar Si content. SAPO-40 is more resistant to deactivation by coke than the studied mordenite sample. Its selectivity for cracking products is comparable to USHY, but hydrogen transfer is lower for SAPO-40 than for USHY and mordenite.
Editor: Elsevier Science & Technology
Idioma: Inglês

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