Effect of Ti and Al addition via direct synthesis to SBA-15 as support for cobalt based Fisher-Tropsch catalysts (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Effect of Ti and Al addition via direct synthesis to SBA-15 as support for cobalt based Fisher-Tropsch catalysts (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.apcata.2012.07.026 (literal)

Alternative label

• M. Lualdi, G. Di Carlo, S. Logdberg, S. Jaras, M. Boutonnet, V. La Parola, L.F. Liotta, G.M. Ingo, A.M. Venezia (2012)
  Effect of Ti and Al addition via direct synthesis to SBA-15 as support for cobalt based Fisher-Tropsch catalysts
  in Applied catalysis. A, General (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• M. Lualdi, G. Di Carlo, S. Logdberg, S. Jaras, M. Boutonnet, V. La Parola, L.F. Liotta, G.M. Ingo, A.M. Venezia (literal)

Pagina fine

• 76- 86 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S0926860X12004784 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 443- 444 (literal)

Rivista

• Applied catalysis. A, General (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 11 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR - ISMN (literal)

Titolo

• Effect of Ti and Al addition via direct synthesis to SBA-15 as support for cobalt based Fisher-Tropsch catalysts (literal)

Abstract

• Different mesoporous SBA-15 supports doped with Ti and Al at 5 and 10 wt% have been synthesized by means of direct synthesis. The supports have been characterized by N2-adsorption, X-ray diffraction (XRD), temperature-programmed reduction (TPR), NH3-temperature programmed desorption (NH3-TPD), H2-chemisorption, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM). Titanium doped materials showed to have much shorter channels than the pristine SBA-15, while aluminum addition did not have a significant effect on channel length. After impregnation with 12 wt% Co, the catalysts were further characterized and tested in the Fischer-Tropsch synthesis at industrially relevant process conditions (483 K, 20 bar, H2/CO ratio = 2.1, pellet size: 53-90 ?m) with and without external water addition. The SC5+ values of the different SBA-supported catalysts were low, especially at low conversion levels (i.e. low water partial pressure), suggesting that CO diffusion limitations increased the H2/CO ratio inside the 1-dimensional (1D) porous network. The selectivity data showed a correlation between the channel length and the extent of CO-diffusion limitations at much shorter diffusion distances than those for conventional 3D porous supports. Water partial pressure showed to increase the syngas diffusion rate (i.e. removal of diffusion limitations on reactants' arrival), to have a positive kinetic effect on the rate and to favor longer chain hydrocarbons. (literal)

Prodotto di

• Sintesi e crescita di film e superfici nanostrutturate (PM.P05.004.002) (Modulo)
• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)
• Catalizzatori per l'abbattimento di inquinanti atmosferici (PM.P03.003.001) (Modulo)

Autore CNR

• GABRIEL MARIA INGO (Unità di personale interno)
• VALERIA LA PAROLA (Unità di personale interno)
• LEONARDA FRANCESCA LIOTTA (Unità di personale interno)
• ANNA VENEZIA (Unità di personale interno)
• GABRIELLA DI CARLO (Persona)

Insieme di parole chiave

• Keywords of "Effect of Ti and Al addition via direct synthesis to SBA-15 as support for cobalt based Fisher-Tropsch catalysts" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• GABRIELLA DI CARLO (Persona)
• LEONARDA FRANCESCA LIOTTA (Unità di personale interno)
• GABRIEL MARIA INGO (Unità di personale interno)
• VALERIA LA PAROLA (Unità di personale interno)
• ANNA VENEZIA (Unità di personale interno)

Prodotto

• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)
• Catalizzatori per l'abbattimento di inquinanti atmosferici (PM.P03.003.001) (Modulo)
• Sintesi e crescita di film e superfici nanostrutturate (PM.P05.004.002) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Applied catalysis. A, General (Rivista)

Insieme di parole chiave di

• Keywords of "Effect of Ti and Al addition via direct synthesis to SBA-15 as support for cobalt based Fisher-Tropsch catalysts" (Insieme di parole chiave)