2024-03-212024-03-212024-03-212022-04-05https://repositorio.ifal.edu.br/handle/123456789/479With the constant oil crises, the high prices and the possibility of its depletion, added to the many negative effects on the environment, the interest in alternative energy sources that are environmentally advantageous has increased. Thus, the possibility arises of producing second- generation ethanol as an alternative to fossil fuels, since it is produced from lignocellulosic biomass (sugarcane, corn and beet residues, among others). In addition to being very attractive for the diversification of the energy matrix and for the prevention of the environment, it presents solutions to problems such as the need to increase the fuels production without increase the planted area and also reduces competition with food production. The use of lignocellulosic materials requires a pre-treatment in order to separate their fractions (cellulose, hemicellulose and lignin) to obtain a greater recovery of sugars, aiming at efficiency and productivity in the fermentation process. Therefore, this work seeks to analyze, through a literature review, the sustainability of 2G ethanol, which still needs greater investment in research to improve its efficiency and productivity, it can be concluded that Brazil has great potential for the production of this biofuel.Acesso AbertoBiomassa LignocelulósicaCana-de-açúcarEtanol de segunda geraçãoTrabalho de Conclusão de CursoENGENHARIA QUIMICA:TECNOLOGIA QUIMICAÁLCOOL