http://www.cnr.it/ontology/cnr/individuo/prodotto/ID55520
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)
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- 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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