Pre-treatment of Steam Explosion, Chemical and Morphological Characterization of Sugarcane Bagasse Used for 2G Ethanol Production
Revista Virtual de Química(2020)
Abstract
Biofuels industries have made great efforts to establish the best pretreatment of lignocellulosic biomass for 2G-ethanol production. Therefore, this work, sugarcane bagasse (BCA), employed to the pre-treatment of steam explosion in an autoclave reactor at 120 degrees C. The chemical characterization performed by high performance liquid chromatography and morphological analyzes by spectroscopic techniques (FTIR and XRD). The evaluated pretreatment revealed changes in chemical and structural composition biomass with cellulose mass percentage of 37.51 and hemicellulose 21.32 in the untreated BCA for 30.82 cellulose and 17.14 of hemicellulose in the pre-treated BCA. The fractions cellulose and hemicelluloses decreased after pretreatment, suggesting generation other products as furfural, hydroxymethylfurfural, acetic acid and formic acid. The FTIR and XRD spectroscopy analyzes showed structural differences between the complexity of the untreated and pretreated biomass. Therefore, the results suggest that the pretreatment results in the breakdown of the biomass fibers.
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Key words
Auto-hydrolysis,sugarcane bagasse,pretreatment
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