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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A novel process intensification strategy for second-generation ethanol production from sugarcane bagasse in fluidized bed reactor

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Antunes, F. A. F. [1] ; Chandel, A. K. [1] ; Brumano, L. P. [1] ; Teran Hilares, R. [1] ; Peres, G. F. D. [1] ; Ayabe, L. E. S. [1] ; Sorato, V. S. [1] ; Santos, J. R. [1] ; Santos, J. C. [1] ; Da Silva, S. S. [1]
Total Authors: 10
[1] Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, BR-12602810 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: RENEWABLE ENERGY; v. 124, n. SI, p. 189-196, AUG 2018.
Web of Science Citations: 4

Due to forthcoming scarcity of fossil fuels and serious environmental concerns, concerted efforts are required to develop the intensified and robust ethanol production from renewable sources. Currently, lignocellulosic materials are among the main available renewable carbon source in the world. Within this context, we present a novel proposal of intensification of the process for second generation (2G) ethanol production from sugarcane bagasse (SCB) employing fluidized bed reactor. Successive steps of SCB i.e. alkaline pre-treatment, saccharification and fermentation to ethanol were carried out in a same column reactor without opening it during the entire process. In the alkaline pretreatment process, a 22 full factorial design of experiments was designed and executed to evaluate the effect of NaOH concentration (from 0.1 to 0.5 M) and time (from 1 to 4 h) on the enzymatic digestibility of pretreated biomass. Enzymatic hydrolysis yielded glucose and xylose of around 87% and 43%, were achieved, respectively, in saccharification step, when used alkaline pre-treated biomass conducted in process by using variables in high level. Thus, Simultaneous saccharification and co-fermentation (SSCF) were performed by using the wild xylose and glucose fermenting yeast Scheffersomyces shehatae UFMG-HM 52.2, verifying ethanol yield and productivity of 0.34 g/g and 0.18 g L/h, respectively. Results showed the potential of using fluidized bed reactor for ethanol production under different process conditions, reducing equipments and process costs with mass transference. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 14/27055-2 - Processes intensification of lignocellulosic biorefineries integrating ethanol and xylitol production steps from sugarcane bagasse in fluidized bed bioreactor
Grantee:Felipe Antonio Fernandes Antunes
Support type: Scholarships in Brazil - Post-Doctorate