Simulation And Evaluation Of Autonomous And Annexed Sugarcane Distilleries

Simulations of autonomous and annexed sugarcane distilleries were carried out with Aspen Plus®. Annexed plants with different proportions of sugarcane destined for bioethanol and sugar were considered in the technical-economic analysis. This study highlighted the relationship between plant flexibility and market oscillations. It was observed that annexed plants that diverted more sugarcane for sugar production were more profitable, considering the average prices for the last 10 y in Brazil. However, autonomous distillery presented the best economic results (internal rate of return and production costs) among the evaluated scenarios. Copyright © 2011, AIDIC Servizi S.r.l.25941946(2010) Center for Advanced Studies on Applied Economics, , www.cepea.usp.br, accessed 07.12.2010Hassuani, S.J., Leal, M.R.L.V., Macedo, I.C., Biomass power generation-sugarcane bagasse and trash (2005) PNUD-CTC, , Eds., Piracicaba, Brazil(2009) Union of Biofuel Producers: Sugarcane Prices, , www.udop.com.br/index.php?item=cana, acessed 15.11.2009Silva, C.G., Renewable energies: Choosing the best options (2010) Energy, 35, pp. 3179-3193Simo, M., Brown, C.J., Hlavacek, V., Simulation of pressure swing adsorption in fuel ethanol production process (2008) Computers and Chemical Engineering, 32 (7), pp. 1635-1649. , DOI 10.1016/j.compchemeng.2007.07.011, PII S0098135407002049Sousa, E.L.L., Macedo, I.C., (2010) Ethanol and Bioelectricity - Sugarcane in the Future of the Energy Matrix (in Portuguese), , UNICA, Sao Paulo, Brazi