Damay Jérémie, Boboescu Iulian-Zoltan, Duret Xavier, Lalonde Olivier, Lavoie Jean-Michel. 2018. A novel hybrid first and second generation hemicellulosic bioethanol production process through steam treatment of dried sorghum biomass. Bioresource Technology, 263 : 103-111.
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Quartile : Q1, Sujet : AGRICULTURAL ENGINEERING / Quartile : Q1, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY / Quartile : Q1, Sujet : ENERGY & FUELS
Résumé : Sweet sorghum was subjected to an impregnation step, which recovered most of the 1st generation sugars, prior to a steam-treatment extraction of the 2nd generation sugars, at three different severity factors (SF). A medium severity (3.56 SF) treatment proved to be an optimal compromise between the amount of sugars extracted and the fermentation inhibitors generated following the subsequent depolymerization approaches applied on the broth. Next, a series of detoxification approaches (ozonation, overliming and a combination of both) were investigated following a concentration and depolymerization step. Results show that higher steam-treatment severity required more intense detoxification steps. However, when combining the 1st and 2nd generation streams at a 2:1 ratio, the inhibitors did not affect the fermentation process and ethanol yields above 90% of the theoretical maximum were achieved.
Mots-clés Agrovoc : détoxification, facteur de production, fermentation, production de biomasse, générateur de vapeur, hybride, étuvage, biomasse, éthanol, bioéthanol, dépolymérisation, sorgho sucre
Mots-clés libres : Sweet sorghum, Steam treatment, Lignocellulosic ethanol, Process inhibitors, Detoxification
Auteurs et affiliations
- Damay Jérémie, Université de Sherbrooke (CAN)
- Boboescu Iulian-Zoltan, Université de Sherbrooke (CAN)
- Duret Xavier, Université de Sherbrooke (CAN)
- Lalonde Olivier, Université de Sherbrooke (CAN)
- Lavoie Jean-Michel, Université de Sherbrooke (CAN) - auteur correspondant
Source : Cirad-Agritrop (https://agritrop.cirad.fr/603593/)
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