ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-07062018-110615


Tipo di tesi
Tesi di laurea magistrale
Autore
DELL'OMO, STEFANO
URN
etd-07062018-110615
Titolo
1-Butanol upgrading via dehydrogenative coupling over Cu-hydrotalcite derived mixed oxides
Dipartimento
CHIMICA E CHIMICA INDUSTRIALE
Corso di studi
CHIMICA INDUSTRIALE
Relatori
relatore Prof.ssa Raspolli Galletti, Anna Maria
relatore Prof. Heeres, Hero Jan
controrelatore Prof. Pampaloni, Guido
Parole chiave
  • butyl butyrate
  • hydrotalcites
  • mixed oxides
  • bio-butanol
  • continuous-flow reactor
  • 2-ethyl-1-hexanol
Data inizio appello
25/07/2018
Consultabilità
Non consultabile
Data di rilascio
25/07/2088
Riassunto
In this work, the catalytic upgrading of 1-butanol over Cu-hydrotalcite derived mixed oxides was studied in a laboratory-scale flow system. The purpose of the project was to test the stability and activity of three different Cu/Mg/Al mixed oxides obtained from calcination of the corresponding hydrotalcites with copper atomic content in the range 1.0-7.6 %. The main product obtained was the butyl butyrate, an attractive novel fuel additive for the aviation sector.
Process conditions were optimized to maximize 1-butanol conversion and ester yield. For the best catalyst a range of temperatures, pressures and flow rates was tested. Several characterization techniques were carried out over fresh catalyst (before and after calcination) and used ones, such as XRD, BET, TPD of NH3 and CO2, TPR and TEM to gain insights in changes in catalyst structure during the reaction.
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