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Scale up study of sugarcane bagasse pre-treatment process for second generation ethanol production

Grant number: 13/11961-1
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): October 01, 2013
Effective date (End): August 31, 2016
Field of knowledge:Engineering - Chemical Engineering
Principal researcher:George Jackson de Moraes Rocha
Grantee:Simone Coelho Nakanishi
Home Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil

Abstract

This project aims to develop a scale-up methodology of sugarcane bagasse pretreatment process using kinetic and thermodynamic data, which were previously obtained in a laboratory scale. The pre-treatment to be studied is a chemical process performed in one step, using NaOH (with or without the anthraquinone) for solubilize lignin and make the cellulose more accessible to hydrolytic agents. The influence of the reactor geometry, agitation system, heating and cooling ramps, filtration system and the water economy in the process, to produce a rich cellulose pulp for the second generation ethanol production will be also evaluated. The best set up pretreatment conditions at low scale, which led to higher hemicellulose and lignin solubilization, with a less cellulose degradation and also a high cellulose conversion to fermentable glucose units, will be used for the scaling-up procedure. This project is a part of a larger one entitled "Biodiversity for Second Generation Ethanol Production" (PITE - FAPESP / VALE S/A / UFPA / CNPEM Process: 2010/51309-3) and considering that is necessary to explore the alternative means of cost competitive enzymes production used in enzymatic hydrolysis with focus in 2G ethanol production, this project also aims to develop enzymatic complexes of cellulase, xylanase, cellobiase, laccase and peroxidase, from the pre-treatment condition that leads to a material that provides good growth of fungi isolated from the Amazonian biome by the Federal University of Pará (UFPA). (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
NAKANISHI, S. C.; NASCIMENTO, V. M.; RABELO, S. C.; SAMPAIO, I. L. M.; JUNQUEIRA, T. L.; ROCHA, G. J. M. Comparative material balances and preliminary technical analysis of the pilot scale sugarcane bagasse alkaline pretreatment to 2G ethanol production. INDUSTRIAL CROPS AND PRODUCTS, v. 120, p. 187-197, SEP 15 2018. Web of Science Citations: 3.
NAKANISHI, SIMONE C.; SOARES, LAUREN B.; BIAZI, LUIZ EDUARDO; NASCIMENTO, VIVIANE M.; COSTA, ALINE C.; ROCHA, GEORGE JACKSON M.; IENCZAK, JACIANE L. Fermentation strategy for second generation ethanol production from sugarcane bagasse hydrolyzate by Spathaspora passalidarum and Scheffersomyces stipitis. Biotechnology and Bioengineering, v. 114, n. 10, p. 2211-2221, OCT 2017. Web of Science Citations: 14.
DE MENEZES, FABRICIA FARIAS; RENCORET, JORGE; NAKANISHI, SIMONE COELHO; NASCIMENTO, VIVIANE MARCOS; NUNES SILVA, VINICIUS FERNANDES; GUTIERREZ, ANA; DEL RIO, JOSE C.; DE MORAES ROCHA, GEORGE JACKSON. Alkaline Pretreatment Severity Leads to Different Lignin Applications in Sugar Cane Biorefineries. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 5, n. 7, p. 5702-5712, JUL 2017. Web of Science Citations: 12.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.