Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis
A systematic study of both acid and steam dealumination of mordenite has been carried out aiming to obtain a mordenite featuring high acid strength active sites along with a secondary mesoporous system, in order to maximize both catalytic performance and time-on-stream stability of the material in s...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_09205861_v114_n2-3_p217_Boveri |
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todo:paper_09205861_v114_n2-3_p217_Boveri2023-10-03T15:44:55Z Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis Boveri, M. Márquez-Álvarez, C. Laborde, M.A. Sastre, E. Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Alkylation Catalysis Fourier transform infrared spectroscopy Hydrophilicity Mesoporous materials Steam X ray diffraction analysis Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Benzene A systematic study of both acid and steam dealumination of mordenite has been carried out aiming to obtain a mordenite featuring high acid strength active sites along with a secondary mesoporous system, in order to maximize both catalytic performance and time-on-stream stability of the material in solid-acid catalyzed alkylation of benzene with 1-dodecene. Detailed assessment of the textural (XRD, N2 adsorption-desorption) and acid (FTIR of pyridine adsorption) properties of the obtained materials was performed. It has been found that catalysts obtained by combined steam dealumination and acid washing show a dramatic increase in the intrinsic activity and a significantly lower tendency to suffer deactivation when compared to the parent zeolite and samples obtained by acid treatments. This improved behaviour of the steam-treated sample is attributed to its increased mesoporous surface area, lower acid sites concentration and less hydrophilic surface. © 2006 Elsevier B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09205861_v114_n2-3_p217_Boveri |
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Universidad de Buenos Aires |
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I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Alkylation Catalysis Fourier transform infrared spectroscopy Hydrophilicity Mesoporous materials Steam X ray diffraction analysis Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Benzene |
| spellingShingle |
Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Alkylation Catalysis Fourier transform infrared spectroscopy Hydrophilicity Mesoporous materials Steam X ray diffraction analysis Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Benzene Boveri, M. Márquez-Álvarez, C. Laborde, M.A. Sastre, E. Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis |
| topic_facet |
Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Alkylation Catalysis Fourier transform infrared spectroscopy Hydrophilicity Mesoporous materials Steam X ray diffraction analysis Acid dealumination Linear alkylbenzene Mordenite Steam dealumination Benzene |
| description |
A systematic study of both acid and steam dealumination of mordenite has been carried out aiming to obtain a mordenite featuring high acid strength active sites along with a secondary mesoporous system, in order to maximize both catalytic performance and time-on-stream stability of the material in solid-acid catalyzed alkylation of benzene with 1-dodecene. Detailed assessment of the textural (XRD, N2 adsorption-desorption) and acid (FTIR of pyridine adsorption) properties of the obtained materials was performed. It has been found that catalysts obtained by combined steam dealumination and acid washing show a dramatic increase in the intrinsic activity and a significantly lower tendency to suffer deactivation when compared to the parent zeolite and samples obtained by acid treatments. This improved behaviour of the steam-treated sample is attributed to its increased mesoporous surface area, lower acid sites concentration and less hydrophilic surface. © 2006 Elsevier B.V. All rights reserved. |
| format |
JOUR |
| author |
Boveri, M. Márquez-Álvarez, C. Laborde, M.A. Sastre, E. |
| author_facet |
Boveri, M. Márquez-Álvarez, C. Laborde, M.A. Sastre, E. |
| author_sort |
Boveri, M. |
| title |
Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis |
| title_short |
Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis |
| title_full |
Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis |
| title_fullStr |
Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis |
| title_full_unstemmed |
Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis |
| title_sort |
steam and acid dealumination of mordenite. characterization and influence on the catalytic performance in linear alkylbenzene synthesis |
| url |
http://hdl.handle.net/20.500.12110/paper_09205861_v114_n2-3_p217_Boveri |
| work_keys_str_mv |
AT boverim steamandaciddealuminationofmordenitecharacterizationandinfluenceonthecatalyticperformanceinlinearalkylbenzenesynthesis AT marquezalvarezc steamandaciddealuminationofmordenitecharacterizationandinfluenceonthecatalyticperformanceinlinearalkylbenzenesynthesis AT labordema steamandaciddealuminationofmordenitecharacterizationandinfluenceonthecatalyticperformanceinlinearalkylbenzenesynthesis AT sastree steamandaciddealuminationofmordenitecharacterizationandinfluenceonthecatalyticperformanceinlinearalkylbenzenesynthesis |
| _version_ |
1807316286123802624 |