Paper: MATHEMATICAL MODELING APPLIED TO BIOETHANOL PRODUCTION USING CURVE FITTING (35th Symposium on Biotechnology for Fuels and Chemicals (April 29-May 2, 2013))

Monday, April 29, 2013

Exhibit Hall

Cristina Ferraz¹, Rogério Luz Pagano¹, Marcelo Diaz¹, Tiago Magalhães¹, Henrique Batista¹, Douglas Cruz Santos¹ and Álvaro Alberto Araújo², (1)Department of Chemical Engineering, Federal University of Sergipe, São Cristóvão, Brazil, (2)Department of Food Technology, Federal University of Sergipe, São Cristóvão, Brazil

Bioethanol produced from renewable resources is an option to substitute traditional fossil fuels. Moreover, the bioethanol produces fewer pollutants in the atmosphere. Thus, the alcoholic fermentation using Saccharomyces cerevisiae for industrial production of bioethanol represents an economical alternative and sustainable. This work present a mathematical modeling strategy applied to bioethanol process, allowing the simulation of biotechnology production of alternative fuels from renewable resources. The bioethanol production batch was developed in medium containing (g/L): sugar cane, 140; yeast extract, 2; peptone, 2; ammonium sulfate, 2; potassium dihydrogen phosphate, 1. The data ⁰Brix, cells number and ethanol concentration were determined at intervals of 2 hours. The kinetic models were implemented and solved by using subroutines in Fortran language. The work showed a good fit of the experimental data compared to data estimated by the program.

Keywords: bioethanol, mathematical modeling, fuel, renewable resources.

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