Silicoaluminophosphate molecular sieves: Characterization of textural and acidic properties |
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| Authors: | J. Pires M. Brotas de Carvalho F. R. Ribeiro E. G. Derouane |
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| Affiliation: | (1) Faculdade de Ciéncias de Lisboa, Departamento de Química, R. da Escola Politécnica 58, 1200 Lisboa, Portugal;(2) Grupo de Estudos de Catalise Heterogénea, Instituto Superior Técnico, Av. Rovisco Pais, 1046 Lisboa, Portugal;(3) Facultés Universitaires, N. D. de la Paix, Laboratory of Catalysis, R. de Bruxelles 61, B-5000 Namur, Belgium |
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| Abstract: | The silicoaluminophosphate SAPO-37 as well as ZSM-20 zeolite have a faujaside-like structure and are potentially useful as catalysts. We report in this work different procedures to decompose the organic template occluded in SAPO-37. The texture of the final products was analyzed by means of nitrogen adsorption. The acid properties of SAPO-37 and ZSM-20 were also compared by IR measurements of adsorbed pyridine and related to the acidic properties of the presently commonly used cracking catalyst zeolite Y.
               -37,    ZSM-20         .       , -37.  .   -37 ZSM-20  - .  , .
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