Hydroisomerization of n-decane over SAPO-11 catalysts synthesized with methylamine as co-template


Autoria(s): Bertolo, Raquel; Fernandes, Auguste; Ribeiro, Filipa; Silva, João M.; Martins, Ângela; Ribeiro, Fernando Ramoa
Data(s)

30/11/2011

30/11/2011

01/02/2010

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.

Identificador

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.

1878-5190

http://hdl.handle.net/10400.21/743

Idioma(s)

eng

Publicador

Springer

Relação

1;

Direitos

restrictedAccess

Palavras-Chave #n-Decane hydroisomerization #SAPO-11 #Acidity #Methylamine
Tipo

article