Estudio de la eficiencia volumétrica y alcohólica con el método de extracción ácida para la producción de bioetanol en el material lignocelulósico de la caña de azúcar (Saccharum officinarum).

Abstract

Liquid or gaseous bioethanol is produced from fractions of biodegradable products, forest residues and wastes. The objective of this work is to establish a study of the volumetric and alcoholic efficiency with the acid extraction method for the production of bioethanol from sugarcane (Saccharum officinarum) lignocellulosic material. The research will be experimental, exploratory, descriptive and correlational. The factors to be studied are A, lignocellulosic material (sugarcane bagasse) and B, concentrations of Saccharomyces cerevisiae yeast (2 % and 4 %). An AxB Completely Randomized Design (ACD) was used, resulting in 2 treatments and 4 replicates for each evaluation in volume and alcohol, for an 8 factorial per evaluation. The statistical analysis of the data was carried out using Student's t-test to determine if there are significant differences in the product resulting from the 2G bioethanol, considering the different washing concentrations to be applied. The results of the volumetric efficiency are located in a volume of alcohol obtained of 59.5 mL with the treatment with S. cerevisiae at 4 %, which was statistically superior to the average (36.25 mL) of the treatment with S. cerevisiae at 2 %. The representative values of the alcohol content obtained reached 25.5° with the 4% S. cerevisiae treatment, which was statistically superior to the average of 18° for the 2% S. cerevisiae treatment. It is concluded that the experimental proposals are determinant to evaluate the volumetric and alcoholic efficiency of bioethanol according to the statistically validated results.