Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene
- Autores
- Morales-Pacheco, P.; Domínguez, J.M.; Bucio, L.; Alvarez, F.; Sedran, Ulises Anselmo; Falco, Marisa Guadalupe
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Nanocrystals of FAU(Y) and MFI(ZSM5) zeolites were synthesized from clear solutions at 80-95 °C under autogen and atmospheric pressures, respectively. The X-ray diffraction (XRD) patterns confirm the structural features reported for FAU(Y) and MFI(ZSM5). Similarly, Fourier transform infrared spectroscopy (FTIR) with KBr shows the bands arising from typical structural groups of FAU(Y) and MFI(ZSM5), i.e., 455-462 cm-1 and 555-560 cm-1. The mean crystallites size was measured by transmission electron microscopy (TEM) and it was determined also by Rietveld's method using Scherrer's equation; with similar results between 20 and 40 nm. Also, a cubic morphology for FAU(Y) crystallites and a disk-like habit for MFI(ZSM5) were verified together with the typical dimensions of the pore system and symmetry, i.e., pore diameters were between 0.74 and 0.56 nm for FAU(Y) and MFI(ZSM5). Theoretical images were calculated using HRTEM (Cerius2) program and these were compared with the experimental ones, thus matching the corresponding typical structural parameters. The textural properties were determined by N2 adsorption-desorption (BET) and typical surface areas of 658 and 495 m 2/g were obtained for the nanosized materials. After ion-exchanging NH4NO3 ammonia was removed by calcination (i.e., 550 °C) and the total acidity was measured, i.e. 1190 and 1084 μmol(Py)/g (cat) at 25 °C and 84 and 34 μmol(Py)/g (cat) at 400 °C for FAU(Y) and MFI(ZSM5), respectively. Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) in air and N2 atmospheres showed a thermal stability of these materials up to about 1000 °C. The catalytic activity of FAU(Y) and MFI(ZSM5) was tested by means of the cracking of 1,3,5-triisopropylbenzene (1,3,5-TIPBz) in a CREC Riser Simulator Reactor at 350 °C; the cracking of 1,3,5-TIPBz increased to about 0.6 and 1.3 times from big (108.9 and 82.8 nm) to small (18 and 20.7 nm) crystallites of FAU(HY) and MFI(HZSM5), respectively, while diffusivity increased to about 3 and 4.6 times, which demonstrates a correlation between the mean crystallite size of these zeolites with cracking activity from the external crystallite surface and the diffusivity of large reactive molecules, i.e., 1,3,5-TIPBz.
Fil: Morales-Pacheco, P.. Universidad Nacional Autónoma de México; México
Fil: Domínguez, J.M.. Instituto Mexicano del Petroleo; México
Fil: Bucio, L.. Universidad Nacional Autónoma de México; México
Fil: Alvarez, F.. Instituto Mexicano del Petroleo; México
Fil: Sedran, Ulises Anselmo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Falco, Marisa Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina - Materia
-
Catalytic Cracking
Fau(Y)
Mfi(Zsm5)
Nanocrystals
Zeolite - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/78586
Ver los metadatos del registro completo
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Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzeneMorales-Pacheco, P.Domínguez, J.M.Bucio, L.Alvarez, F.Sedran, Ulises AnselmoFalco, Marisa GuadalupeCatalytic CrackingFau(Y)Mfi(Zsm5)NanocrystalsZeolitehttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Nanocrystals of FAU(Y) and MFI(ZSM5) zeolites were synthesized from clear solutions at 80-95 °C under autogen and atmospheric pressures, respectively. The X-ray diffraction (XRD) patterns confirm the structural features reported for FAU(Y) and MFI(ZSM5). Similarly, Fourier transform infrared spectroscopy (FTIR) with KBr shows the bands arising from typical structural groups of FAU(Y) and MFI(ZSM5), i.e., 455-462 cm-1 and 555-560 cm-1. The mean crystallites size was measured by transmission electron microscopy (TEM) and it was determined also by Rietveld's method using Scherrer's equation; with similar results between 20 and 40 nm. Also, a cubic morphology for FAU(Y) crystallites and a disk-like habit for MFI(ZSM5) were verified together with the typical dimensions of the pore system and symmetry, i.e., pore diameters were between 0.74 and 0.56 nm for FAU(Y) and MFI(ZSM5). Theoretical images were calculated using HRTEM (Cerius2) program and these were compared with the experimental ones, thus matching the corresponding typical structural parameters. The textural properties were determined by N2 adsorption-desorption (BET) and typical surface areas of 658 and 495 m 2/g were obtained for the nanosized materials. After ion-exchanging NH4NO3 ammonia was removed by calcination (i.e., 550 °C) and the total acidity was measured, i.e. 1190 and 1084 μmol(Py)/g (cat) at 25 °C and 84 and 34 μmol(Py)/g (cat) at 400 °C for FAU(Y) and MFI(ZSM5), respectively. Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) in air and N2 atmospheres showed a thermal stability of these materials up to about 1000 °C. The catalytic activity of FAU(Y) and MFI(ZSM5) was tested by means of the cracking of 1,3,5-triisopropylbenzene (1,3,5-TIPBz) in a CREC Riser Simulator Reactor at 350 °C; the cracking of 1,3,5-TIPBz increased to about 0.6 and 1.3 times from big (108.9 and 82.8 nm) to small (18 and 20.7 nm) crystallites of FAU(HY) and MFI(HZSM5), respectively, while diffusivity increased to about 3 and 4.6 times, which demonstrates a correlation between the mean crystallite size of these zeolites with cracking activity from the external crystallite surface and the diffusivity of large reactive molecules, i.e., 1,3,5-TIPBz.Fil: Morales-Pacheco, P.. Universidad Nacional Autónoma de México; MéxicoFil: Domínguez, J.M.. Instituto Mexicano del Petroleo; MéxicoFil: Bucio, L.. Universidad Nacional Autónoma de México; MéxicoFil: Alvarez, F.. Instituto Mexicano del Petroleo; MéxicoFil: Sedran, Ulises Anselmo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Falco, Marisa Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaElsevier Science2011-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/78586Morales-Pacheco, P.; Domínguez, J.M.; Bucio, L.; Alvarez, F.; Sedran, Ulises Anselmo; et al.; Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene; Elsevier Science; Catalysis Today; 166; 1; 5-2011; 25-380920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2010.07.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:55Zoai:ri.conicet.gov.ar:11336/78586instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:05:56.153CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene |
title |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene |
spellingShingle |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene Morales-Pacheco, P. Catalytic Cracking Fau(Y) Mfi(Zsm5) Nanocrystals Zeolite |
title_short |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene |
title_full |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene |
title_fullStr |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene |
title_full_unstemmed |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene |
title_sort |
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene |
dc.creator.none.fl_str_mv |
Morales-Pacheco, P. Domínguez, J.M. Bucio, L. Alvarez, F. Sedran, Ulises Anselmo Falco, Marisa Guadalupe |
author |
Morales-Pacheco, P. |
author_facet |
Morales-Pacheco, P. Domínguez, J.M. Bucio, L. Alvarez, F. Sedran, Ulises Anselmo Falco, Marisa Guadalupe |
author_role |
author |
author2 |
Domínguez, J.M. Bucio, L. Alvarez, F. Sedran, Ulises Anselmo Falco, Marisa Guadalupe |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Catalytic Cracking Fau(Y) Mfi(Zsm5) Nanocrystals Zeolite |
topic |
Catalytic Cracking Fau(Y) Mfi(Zsm5) Nanocrystals Zeolite |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Nanocrystals of FAU(Y) and MFI(ZSM5) zeolites were synthesized from clear solutions at 80-95 °C under autogen and atmospheric pressures, respectively. The X-ray diffraction (XRD) patterns confirm the structural features reported for FAU(Y) and MFI(ZSM5). Similarly, Fourier transform infrared spectroscopy (FTIR) with KBr shows the bands arising from typical structural groups of FAU(Y) and MFI(ZSM5), i.e., 455-462 cm-1 and 555-560 cm-1. The mean crystallites size was measured by transmission electron microscopy (TEM) and it was determined also by Rietveld's method using Scherrer's equation; with similar results between 20 and 40 nm. Also, a cubic morphology for FAU(Y) crystallites and a disk-like habit for MFI(ZSM5) were verified together with the typical dimensions of the pore system and symmetry, i.e., pore diameters were between 0.74 and 0.56 nm for FAU(Y) and MFI(ZSM5). Theoretical images were calculated using HRTEM (Cerius2) program and these were compared with the experimental ones, thus matching the corresponding typical structural parameters. The textural properties were determined by N2 adsorption-desorption (BET) and typical surface areas of 658 and 495 m 2/g were obtained for the nanosized materials. After ion-exchanging NH4NO3 ammonia was removed by calcination (i.e., 550 °C) and the total acidity was measured, i.e. 1190 and 1084 μmol(Py)/g (cat) at 25 °C and 84 and 34 μmol(Py)/g (cat) at 400 °C for FAU(Y) and MFI(ZSM5), respectively. Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) in air and N2 atmospheres showed a thermal stability of these materials up to about 1000 °C. The catalytic activity of FAU(Y) and MFI(ZSM5) was tested by means of the cracking of 1,3,5-triisopropylbenzene (1,3,5-TIPBz) in a CREC Riser Simulator Reactor at 350 °C; the cracking of 1,3,5-TIPBz increased to about 0.6 and 1.3 times from big (108.9 and 82.8 nm) to small (18 and 20.7 nm) crystallites of FAU(HY) and MFI(HZSM5), respectively, while diffusivity increased to about 3 and 4.6 times, which demonstrates a correlation between the mean crystallite size of these zeolites with cracking activity from the external crystallite surface and the diffusivity of large reactive molecules, i.e., 1,3,5-TIPBz. Fil: Morales-Pacheco, P.. Universidad Nacional Autónoma de México; México Fil: Domínguez, J.M.. Instituto Mexicano del Petroleo; México Fil: Bucio, L.. Universidad Nacional Autónoma de México; México Fil: Alvarez, F.. Instituto Mexicano del Petroleo; México Fil: Sedran, Ulises Anselmo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina Fil: Falco, Marisa Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina |
description |
Nanocrystals of FAU(Y) and MFI(ZSM5) zeolites were synthesized from clear solutions at 80-95 °C under autogen and atmospheric pressures, respectively. The X-ray diffraction (XRD) patterns confirm the structural features reported for FAU(Y) and MFI(ZSM5). Similarly, Fourier transform infrared spectroscopy (FTIR) with KBr shows the bands arising from typical structural groups of FAU(Y) and MFI(ZSM5), i.e., 455-462 cm-1 and 555-560 cm-1. The mean crystallites size was measured by transmission electron microscopy (TEM) and it was determined also by Rietveld's method using Scherrer's equation; with similar results between 20 and 40 nm. Also, a cubic morphology for FAU(Y) crystallites and a disk-like habit for MFI(ZSM5) were verified together with the typical dimensions of the pore system and symmetry, i.e., pore diameters were between 0.74 and 0.56 nm for FAU(Y) and MFI(ZSM5). Theoretical images were calculated using HRTEM (Cerius2) program and these were compared with the experimental ones, thus matching the corresponding typical structural parameters. The textural properties were determined by N2 adsorption-desorption (BET) and typical surface areas of 658 and 495 m 2/g were obtained for the nanosized materials. After ion-exchanging NH4NO3 ammonia was removed by calcination (i.e., 550 °C) and the total acidity was measured, i.e. 1190 and 1084 μmol(Py)/g (cat) at 25 °C and 84 and 34 μmol(Py)/g (cat) at 400 °C for FAU(Y) and MFI(ZSM5), respectively. Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) in air and N2 atmospheres showed a thermal stability of these materials up to about 1000 °C. The catalytic activity of FAU(Y) and MFI(ZSM5) was tested by means of the cracking of 1,3,5-triisopropylbenzene (1,3,5-TIPBz) in a CREC Riser Simulator Reactor at 350 °C; the cracking of 1,3,5-TIPBz increased to about 0.6 and 1.3 times from big (108.9 and 82.8 nm) to small (18 and 20.7 nm) crystallites of FAU(HY) and MFI(HZSM5), respectively, while diffusivity increased to about 3 and 4.6 times, which demonstrates a correlation between the mean crystallite size of these zeolites with cracking activity from the external crystallite surface and the diffusivity of large reactive molecules, i.e., 1,3,5-TIPBz. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/78586 Morales-Pacheco, P.; Domínguez, J.M.; Bucio, L.; Alvarez, F.; Sedran, Ulises Anselmo; et al.; Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene; Elsevier Science; Catalysis Today; 166; 1; 5-2011; 25-38 0920-5861 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/78586 |
identifier_str_mv |
Morales-Pacheco, P.; Domínguez, J.M.; Bucio, L.; Alvarez, F.; Sedran, Ulises Anselmo; et al.; Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene; Elsevier Science; Catalysis Today; 166; 1; 5-2011; 25-38 0920-5861 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2010.07.005 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842269934929838080 |
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13.13397 |