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Crystallization of the Granulated Molecular Sieve SAPO-11 Having High Crystallinity and a Hierarchical Pore Structure
https://doi.org/10.18412/1816-0387-2020-3-167-173
Abstract
A method for the synthesis of the granulated molecular sieve SAPO-11 having high crystallinity and a hierarchical pore structure was proposed for the first time. Crystallization is based on the synthesis of granules comprising 70 wt.% of powdered SAPO-11 and 30 wt.% of the silicoaluminophosphate binder, which transforms into SAPO-11 during crystallization and forms a joint system of intergrown silicoaluminophosphate crystals. This crystallization method makes it possible to obtain the granulated SAPO-11 having high crystallinity and phase purity; its specific surface area SBET is 212 m2/g, micro, meso- and macropore volumes are 0.08, 0.11 and 0.55 cm3/g, respectively. Meso- and macropores were shown to form between intergrown SAPO-11 crystals.
About the Authors
M. R. Agliullin
Institute of Petrochemistry and Catalysis, UFRC RAS, Ufa
Russian Federation
Russian Federation
Z. R. Khairullina
Ufa State Oil Technical University
Russian Federation
Russian Federation
B. I. Kutepov
Institute of Petrochemistry and Catalysis, UFRC RAS, Ufa; Ufa State Oil Technical University
Russian Federation
Russian Federation
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Review
For citations:
Agliullin M.R., Khairullina Z.R., Kutepov B.I. Crystallization of the Granulated Molecular Sieve SAPO-11 Having High Crystallinity and a Hierarchical Pore Structure. Kataliz v promyshlennosti. 2020;20(3):167-173. (In Russ.) https://doi.org/10.18412/1816-0387-2020-3-167-173
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