Vol.6, No.2, 2018, pp.183-194, doi:10.7569/JRM.2017.634175
OPEN ACCESS
ARTICLE
Enzymatic Hydrolysis of Sugarcane Biomass and Heat Integration as Enhancers of Ethanol Production
  • Reynaldo Palacios-Bereche1, Adriano Ensinas2, Marcelo Modesto1, Silvia Nebra1,3,*
Centre of Engineering, Modelling and Applied Social Sciences, Federal University of ABC (CECS/UFABC), Santo André, SP, Brazil
Energy Department, Federal University of Lavras, Lavras MG, Brazil
Interdisciplinary Centre of Energy Planning, University of Campinas (NIPE/UNICAMP), Campinas, SP, Brazil
*Corresponding author: sanebra@gmail.com
Abstract
The aim of this study is to assess the possibility of increasing ethanol production by introducing the bagasse hydrolysis process into conventional distilleries. Simulations were performed for mass and energy balances using Aspen Plus® software. It was assumed that sugarcane trash and lignin cake—hydrolysis process residues—are available as supplementary fuel. Several cases were evaluated, including: (a) conventional ethanol distillery, (b) conventional plant combined with a hydrolysis process without heat integration, with different solid contents in the hydrolysis reactor, and (c) conventional plant combined with the hydrolysis process applying heat integration by pinch analysis. The highest ethanol yield was achieved in the case of heat integration and concentration of cellulose hydrolysate by the membrane system with a solid content of 5% in the hydrolysis reactor. This represents an increase of 22% over conventional distilleries currently found in the industry.
Keywords
Ethanol, sugarcane, enzymatic hydrolysis, heat integration
Cite This Article
Palacios-Bereche, R., Ensinas, A., Modesto, M., Nebra, S. (2018). Enzymatic Hydrolysis of Sugarcane Biomass and Heat Integration as Enhancers of Ethanol Production. Journal of Renewable Materials, 6(2), 183–194.