Proceedings of the 8th International conference on Research in Engineering, Science and Technology
Bioethanol Production of the lignocellulosics wastes in Algeria
Nabila Laskri, Nawel Nedjah and Doula Daas
Ethanol from renewable resources has been of interest in recent decades as an alternative fuel to the current fossil fuels.Lignocellulosic biomass like wood and agricultural crops residues, are potential raw materials for producing several high-value products like fuel ethanol and biodiesel because they contains up to 80% from the polysaccharides.Waste of corn and starch biomass is also the most abundant after waste in Algeria especially after harvest.Our substrate of this research is the waste of maize, after corn harvest for consumption the waste of the crops composed of grains of corn and stalk are crushed and used for the alcoholic fermentation.This is why a pretreatment is recommended. In order to accentuate the degradation of sugar the acid hydrolysis is very used. Acid hydrolysis is very important phase in the production of bioethanol. This is the purpose of our work in this paper.Acid hydrolysis considerably increases bioethanol production as we have found a conversion rate of total sugar about 75% and an alcoholic degree found of second distillation of 38 °.
Keywords: waste, bioethanol, fermentation, acid hydrolysis.