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Título: | Influence of Al distribution and defects concentration of ferrierite catalysts synthesized from Na-free gels in the skeletal isomerization of n-butene |
Autor: | Márquez Álvarez, Carlos CSIC ORCID ; Pinar, Ana Belén CSIC ORCID; García Salas, Raquel; Grande Casas, María Sol CSIC ORCID; Pérez-Pariente, Joaquín CSIC ORCID | Palabras clave: | Ferrierite Zeolite synthesis Fluoride medium Al sitting Acid sites distribution FTIR Pyridine Isomerization 1-Butene Isobutene |
Fecha de publicación: | 21-abr-2009 | Editor: | Springer Nature | Citación: | Topics in Catalysis | Resumen: | The skeletal isomerization of n-butenes to isobutene has been carried out over ferrierite catalysts (Si/Al ~ 15) containing different acid sites distribution and different amount of defects. The zeolite crystals were synthesized under hydrothermal conditions in fluoride medium in the absence of alkaline cations by using suitable combinations of structure directing agents. Template-driven low density of acid sites in 10-membered-ring channels enhances the isobutene selectivity and decreases catalyst deactivation. The presence of high amount of silanol groups and Lewis acid sites increases the yields of by-products and catalysts decay. | Versión del editor: | http://dx.doi.org/10.1007/s11244-009-9273-6 | URI: | http://hdl.handle.net/10261/27457 | DOI: | 10.1007/s11244-009-9273-6 | ISSN: | 1022-5528 |
Aparece en las colecciones: | (ICP) Artículos |
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TopCatal_2009_52_1281_OA.pdf | 381,26 kB | Adobe PDF | Visualizar/Abrir |
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