Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/743
Título: Hydroisomerization of n-decane over SAPO-11 catalysts synthesized with methylamine as co-template
Autor: Bertolo, Raquel
Fernandes, Auguste
Ribeiro, Filipa
Silva, João M.
Martins, Ângela
Ribeiro, Fernando Ramoa
Palavras-chave: n-Decane hydroisomerization
SAPO-11
Acidity
Methylamine
Data: Fev-2010
Editora: Springer
Citação: Bertolo R, Fernandes A, Ribeiro F, Silva J M, Martins A, Ribeiro F R. Hydroisomerization of n-decane over SAPO-11 catalysts synthesized with methylamine as co-template. Reaction Kinetcs Mechanics and Catalysis. 2010; 99 (1): 183-191.
Relatório da Série N.º: 1;
Resumo: The present work deals with preliminary studies concerning a new synthesis approach to prepare SAPO materials with AEL structure and evaluate their catalytic behavior in the hydroisomerization of long paraffins. The new SAPO-11 catalysts were synthesized with the help of a small amine (methylamine, MA) added during the preparation of the initial gel. As MA incorporates into the structure of the final materials, it contributes, together with DPA (dipropylamine), to an increase in Si incorporation as isolated species, which results in Bronsted acid sites. Thus, this new and original synthesis strategy allows to obtain materials with enhanced Bronsted acidity when compared with free MA materials. The catalysts were tested in n-decane hydroisomerization (n-decane was used as a model molecule) and confirmed the effect of MA on the acidic properties of the catalysts. The samples synthesized with MA present a higher number of acid sites that increase the catalytic conversion but have a negative effect in the isomerization selectivity, i.e. a more significant amount of cracking products is formed.
Peer review: yes
URI: http://hdl.handle.net/10400.21/743
ISSN: 1878-5190
Aparece nas colecções:ISEL - Eng. Quim. Biol. - Artigos

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