Catalytic etherification of glycerol by tert-butyl alcohol to produce oxygenated additives for diesel fuel (Articolo in rivista)

Type
Label
  • Catalytic etherification of glycerol by tert-butyl alcohol to produce oxygenated additives for diesel fuel (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.apcata.2009.07.037 (literal)
Alternative label
  • Frusteri F. ; Arena F. ; Bonura G. ; Cannilla C. ; Spadaro L. ; Di Blasi O. (2009)
    Catalytic etherification of glycerol by tert-butyl alcohol to produce oxygenated additives for diesel fuel
    in Applied catalysis. A, General (Print); ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Frusteri F. ; Arena F. ; Bonura G. ; Cannilla C. ; Spadaro L. ; Di Blasi O. (literal)
Pagina inizio
  • 77 (literal)
Pagina fine
  • 83 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 367 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1-2 (literal)
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-ITAE, Istituto di Tecnologie Avanzate per l'energia \"Nicola Giordano\" ; Dip. Chimica Industriale e Ingegneria dei Materiali, Universita` di Messina (literal)
Titolo
  • Catalytic etherification of glycerol by tert-butyl alcohol to produce oxygenated additives for diesel fuel (literal)
Abstract
  • The heterogeneous catalytic etherification of glycerol with tert-butyl alcohol was investigated in presence of lab-made silica supported acid catalysts. As reference, two commercial acid ion-exchange resins were also used. Experiments were carried out in batch mode at TR ranging from 303 to 363 K. An increase in reaction temperature favors the formation of di-substituted ethers. The etherification reaction proceeds according to a consecutive path and the surface reaction between adsorbed glycerol and protonated tert-butanol (tertiary carbocation) can be considered as the rate determining step. Steric hindrance phenomena and water hinder the formation of tri-substituted ether (TBGE). As expected, water removal was necessary to allow the higher ethers formation. The specific activity (turnover frequency, TOF) of A-15 catalyst is significantly higher than that of the other studied acid systems, due to the wide pore diameter that allows an easier accessibility of the reagent molecules. (literal)
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