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Abstract:

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.

Registro:

Documento: Artículo
Título:Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis
Autor:Boveri, M.; Márquez-Álvarez, C.; Laborde, M.A.; Sastre, E.
Filiación:Instituto de Catálisis y Petroleoquímica, C.S.I.C., c/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain
Departamento de Ingeniería Química (FI), Universidad de Buenos Aires, Pabellon Industrias, Ciudad Univ., 1428 Buenos Aires, Argentina
Palabras clave: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
Año:2006
Volumen:114
Número:2-3
Página de inicio:217
Página de fin:225
DOI: http://dx.doi.org/10.1016/j.cattod.2006.01.012
Título revista:Catalysis Today
Título revista abreviado:Catal Today
ISSN:09205861
CODEN:CATTE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09205861_v114_n2-3_p217_Boveri

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Citas:

---------- APA ----------
Boveri, M., Márquez-Álvarez, C., Laborde, M.A. & Sastre, E. (2006) . Steam and acid dealumination of mordenite. Characterization and influence on the catalytic performance in linear alkylbenzene synthesis. Catalysis Today, 114(2-3), 217-225.
http://dx.doi.org/10.1016/j.cattod.2006.01.012
---------- CHICAGO ----------
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" . Catalysis Today 114, no. 2-3 (2006) : 217-225.
http://dx.doi.org/10.1016/j.cattod.2006.01.012
---------- MLA ----------
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" . Catalysis Today, vol. 114, no. 2-3, 2006, pp. 217-225.
http://dx.doi.org/10.1016/j.cattod.2006.01.012
---------- VANCOUVER ----------
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. Catal Today. 2006;114(2-3):217-225.
http://dx.doi.org/10.1016/j.cattod.2006.01.012