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Spalluto, Giorgio (2011) Modelling of mass transfer during wood fermentation processes to produce bioalcohol. [Magistrali biennali]

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Abstract

The aim of this work is to model the bioethanol production by wood degradation, and to check if there is mass transfer limitations in the reactions steps from the wood particles to the microorganisms due to the transferring of molecules that are involved in. Cellulose and xylan have been considered the only reactive components of wood to get simple sugars for cell fermentation. Lignin affects only the mass transfer through the wood particles. The effect of mass transfer are studied by modeling the reactions steps of two processes that could have future develop in lignocellulosic bioethanol production: process 1, a thermal auto hydrolysis of xylan followed by Simultaneous Saccharification and Co-Fermentation (SSCF) step; process 2, with a SSCF single reaction step, including enzymatic hydrolysis of both xylan and cellulose. The diffusive mass transfer of simple sugars produced by wood components degradation has been determined inside the wood and inside the microbial cell wall

Item Type:Magistrali biennali
Corsi di Diploma di Laurea:Scuola di Ingegneria > Ingegneria Chimica e dei Processi Industriali
Scuola di Ingegneria > Ingegneria Chimica e dei Processi Industriali
Uncontrolled Keywords:wood, fermentation, hydrolysis, model, mass transfer
Subjects:Area 09 - Ingegneria industriale e dell'informazione > ING-IND/25 Impianti chimici
Codice ID:40159
Relatore:Bertucco, Alberto
Correlatore:Kirkby, Norman
Data della tesi:14 October 2011
Biblioteca:Polo di Ingegneria > Biblioteca Centrale di Ingegneria
Tipo di fruizione per il documento:on-line per i full-text
Tesi sperimentale (Si) o compilativa (No)?:Yes

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