2026-05-27T04:42:32Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/452722026-02-10T00:47:59Zcom_10630_2254col_10630_37953
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Cordero-Lanzac, Tomás
author
Rodríguez-Cano, Miguel Ángel
author
Palomo-Jiménez, José
author
Valero-Romero, María José
author
Aguayo, Andres T.
author
Bilbao, Javier
author
Rodríguez-Mirasol, José
author
Cordero-Alcántara, Tomás
2026-02-09T10:33:10Z
2022-08
Tomás Cordero-Lanzac, Miguel A. Rodríguez-Cano, José Palomo, María J. Valero-Romero, Andrés T. Aguayo, Javier Bilbao, José Rodríguez-Mirasol, Tomás Cordero, Binderless ZrO2/HZSM-5 fibrillar composites by electrospinning as catalysts for the dimethyl ether-to-olefins process, Microporous and Mesoporous Materials, Volume 342, 2022, 112102.
https://hdl.handle.net/10630/45272
10.1016/j.micromeso.2022.112102
The upscaling of zeolitic materials to technical catalysts implies the formulation of the active phase with additives that can affect catalytic performance. As an alternative, we herein present fibrillar ZrO2/HZSM-5 composites prepared by electrospinning where HZSM-5 zeolite aggregates are joint through inert ZrO2 fibers. For zeolite loadings of 5, 10 and 20 wt% and SiO2/Al2O3 ratios of 30, 50 and 80, well-dispersed zeolite aggregates smaller than 1.5 μm have been observed. The ZrO2/HZSM-5 composites were tested as catalysts in the dimethyl ether-to-olefins (DTO) process. The maximum olefin selectivity (ca. 70%) but fastest deactivation was observed for a zeolite loading of 5 wt%, with side reaction extent being promoted when increasing zeolite loading or density of acid sites. A comparison with a technical catalyst suggested that secondary reactions are limited due to the homogeneous distribution of the zeolite in the fibrillary material and to the higher accessibility of zeolite crystals.
eng
Attribution-NonCommercial-NoDerivatives 4.0 International
Catalizadores
Hilatura
Binderless ZrO2/HZSM-5 fibrillar composites by electrospinning as catalysts for the dimethyl ether-to-olefins process
journal article
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URL
https://riuma.uma.es/bitstreams/35827c1a-5e1a-4c8e-b14e-8bf510384a5e/download
File
MD5
0fcc84a9b8c572120806e62aca2e83cb
1673148
application/pdf
binderless.pdf