Plasma based pretreatments of lignocellulosic biomass for Biogas and Bioethanol production

Ricciotti, Federica (2018) Plasma based pretreatments of lignocellulosic biomass for Biogas and Bioethanol production. [Laurea magistrale], Università di Bologna, Corso di Studio in Ingegneria chimica e di processo [LM-DM270], Documento full-text non disponibile
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The aim of this project provides the use of a lignocellulosic biomass microbubble reactor in order to analyse the pre-treatment of cellulose and maize for, respectively, Bioethanol and Biogas production. Because of lignin recalcitrance, dielectric barrier discharge plasma is used to improve the solubility and accessibility of these feedstock. The novel reactor combined with this plasma source generates highly oxidative species (O3, H2O2, and OH radicals) close to the gas-liquid interface. The cellulose has been treated under different conditions such as treatment time (30 min, 60 min, 90 min and 120 min) and pH buffer solution (pH 3, pH 7 and pH 9). The maize biomass has been reacted under 5 different conditions (Control sludge, Untreated raw maize, Plasma treated washed maize, Plasma treated unwashed maize, Bubble treated unwashed maize). The optimal operating condition, for cellulose biomass, that produced the highest glucose concentration results with pH 3 and with 30 min treatments. On the other hand, maize samples treated with plasma, both washed and unwashed, generate more biogas than bubble treatment, control sludge or untreated raw maize.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Ricciotti, Federica
Relatore della tesi
Correlatore della tesi
Corso di studio
Ingegneria di processo
Ordinamento Cds
Parole chiave
lignocellulosic biomass,plasma pretreatment,bioethanol,biogas,dbd plasma,lignin
Data di discussione della Tesi
15 Marzo 2018

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