Niobia supported on silica as a catalyst for Biodiesel production from waste oil
Abstract: The activity and stability of niobia supported on silica catalyst have been tested in continuous micro-pilot reactors, for biodiesel production starting from acid vegetable oils. A catalyst was prepared by the impregnation of silica pellets with a loading of 12% of Nb and was extensively characterized. The activity of this catalyst in both esterification and transesterification was tested in a continuous micro-pilot laboratory plant in which acid oil was fed (FFA 10% w/w) at a temperature of 220°C and at a pressure of 60 bar. The niobia based catalyst resulted in a very active catalyst in both esterification (FFA conversion = 95-90%) and transesterification reactions (FAME yield = 80-90%), and the activity remained quite constant for more than 100 h on stream. Notwithstanding this stability, a non-negligible leaching phenomena has been detected, in the case of long-time continuous runs, as the Nb concentration on the spent catalyst resulted lower than that on the fresh one. The obtained result confirms that the leaching of the active specie is one of the most strong problem in heterogeneous catalysis for biodiesel production.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Niobia supported on silica as a catalyst for Biodiesel production from waste oil ; volume:2 ; number:1 ; year:2015 ; pages:33-42 ; extent:10
Catalysis for sustainable energy ; 2, Heft 1 (2015), 33-42 (gesamt 10)
- Urheber
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Tesser, R.
Vitiello, R.
Carotenuto, G.
Garcia Sancho, C.
Vergara, A.
Maireles Torres, P.J.
Li, Changzhu
Di Serio, M.
- DOI
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10.1515/cse-2015-0002
- URN
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urn:nbn:de:101:1-2411121608491.425574153839
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:20 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Tesser, R.
- Vitiello, R.
- Carotenuto, G.
- Garcia Sancho, C.
- Vergara, A.
- Maireles Torres, P.J.
- Li, Changzhu
- Di Serio, M.
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