Produção de etanol de primeira e segunda geração e de eletricidade com cana-de-açúcar e cana-energia

Abstract

Nowadays the sugarcane biomass is a great and sustainable business in Brazil. This study aims to identify operational and economic scenarios of the sugarcane and energy cane cultivation, which have different levels of fiber and sugar, used in the production of 1G ethanol, 2G ethanol and electricity, demonstrating the sustainability of an energy system in three sugarcane producers regions of the State of Alagoas (North, Center and South). A documentary research was done, data resulting from agricultural research obtained and scenarios for these regions built. Nine scenarios were created for each region (the use of sugarcane and three types of energy cane). The energy cane data were obtained from research results performed by RIDESA / UFAL in the three mentioned regions. Assumptions were made in the calculations, considering different combinations of Pol, Fiber, CRS, agricultural yield, excess bagasse, dry cellulose biomass, residual broth purity, liters of hydrous ethanol per ton of sugarcane, energy generation at From the BCS, amount paid to the producer per liter of ethanol and megawatt to Alagoas. The results made the following conclusions possible: In the North Region, a 16% Fiber sugarcane and CRS of 130.65 using 70% of BCS for E2G production and 30% for electricity production, being able to reach R$37,414,237.33 or 20.01% more than the current production revenue. The 18% fiber and 110 CRS energy cane is the one that provides the highest revenue for the company through the ethanol (1G + 2G) and electricity sales, using 70% of BCS for the production of E2G and 30% for the production of electricity. In this scenario, it is possible to reach R$144,079,317.17 or 76.96% more than the current production revenue. In the Central Region, the 13.50% Fiber and 138 CRS sugar cane using 70% of BCS for E2G production and 30% for electrical production may reach R$29,792,468.50 or 15.12% more than the current production revenue. The 17% fiber and 117 CRS energy cane is the one that provides the highest revenue for the company through ethanol (1G + 2G) and electricity sales, using 70% of BCS for the production of E2G and 30% for Production of electricity. In this scenario, it is possible to achieve 73.18% more than the current production revenue. In the South Region, 14.29% Fiber and 134.57 CRS sugarcane using 70% of BCS for E2G production and 30% for electrical production is able to reach 16.13% more than the current production revenue. The 17% fiber and 114,38 CRS energy cane is the one that provides the highest revenue for the company through the ethanol (1G + 2G) and electricity sales, using 70% of BCS for the production of E2G and 30% to produce electricity. In this scenario, it may achieve 75.22% more than the current production revenue.