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Archive | 2014

Scale-up Pretreatment Studies on Sugarcane Bagasse and Straw for Second-Generation Ethanol Production

George Jackson de Moraes Rocha; Viviane Marcos Nascimento; Vinicius Fernandes Nunes da Silva; Anuj K. Chandel

Sugarcane juice-derived ethanol (1G ethanol) has been the major renewable energy source in Brazil after the inception of National Alcohol Program in 1970. The remaining part, after the processing of sugarcane and extraction of juice (sugarcane bagasse-SB and straw-SS), are the promising sugar feedstock for cellulosic ethanol (2G ethanol) due to their abundant availability round the year and high energy content. However, sugar recovery from lignocellulosic biomass is not easy and needs intensive processing. Pretreatment to overcome the recalcitrance of these feedstocks and sugar recovery constitute almost 30 % cost of 2G ethanol production. Several pretreatment methods have been studied recently aiming to either lignin removal or hemicellulose from SB/SS for the subsequent enzymatic hydrolysis for fermentable sugar production. However, steam explosion and dilute sulfuric acid have been emerged out as two successful options for the pretreatment of SB/SS. Pilot level studies at our institute (Laboratorio Nacional de Ciencia e Tecnologia do Bioetanol—CTBE, Campinas, Brazil), for the pretreatment of SB/SS considering steam explosion and dilute acid pretreatment, have shown the promising results. Both the pretreatment strategies are scalable and reproducible at the commercial level. This chapter deals with the experiments made on SB/SS for the steam explosion and dilute acid hydrolysis and the sugar recovery after enzymatic hydrolysis. Furthermore, process configurations for saccharification of pretreated biomass and the conversion of released sugars into ethanol have also been discussed.


Industrial Crops and Products | 2015

Influence of mixed sugarcane bagasse samples evaluated by elemental and physical-chemical composition

George Jackson de Moraes Rocha; Viviane Marcos Nascimento; Adilson R. Gonçalves; Vinicius Fernandes Nunes da Silva; Carlos Martín


Journal of Industrial Microbiology & Biotechnology | 2011

Fermentation of cellulosic hydrolysates obtained by enzymatic saccharification of sugarcane bagasse pretreated by hydrothermal processing

Vinicius Fernandes Nunes da Silva; Priscila Vaz de Arruda; Maria das Graças de Almeida Felipe; Adilson R. Gonçalves; George Jackson de Moraes Rocha


Industrial Crops and Products | 2014

Contributing to the environmental sustainability of the second generation ethanol production: delignification of sugarcane bagasse with sodium hydroxide recycling.

George Jackson de Moraes Rocha; Viviane Marcos Nascimento; Vinicius Fernandes Nunes da Silva; Débora Lee Simões Corso; Adilson R. Gonçalves


Industrial Crops and Products | 2015

Pilot scale steam explosion and diluted sulfuric acid pretreatments: Comparative study aiming the sugarcane bagasse saccharification

George Jackson de Moraes Rocha; Adilson R. Gonçalves; S.C. Nakanishi; Viviane Marcos Nascimento; Vinicius Fernandes Nunes da Silva


Sugar Tech | 2013

Effect of Xylan and Lignin Removal by Hydrothermal Pretreatment on Enzymatic Conversion of Sugarcane Bagasse Cellulose for Second Generation Ethanol Production

George Jackson de Moraes Rocha; Vinicius Fernandes Nunes da Silva; Carlos Martín; Adilson R. Gonçalves; Viviane Marcos Nascimento; Ana Maria Souto-Maior


Fuel Processing Technology | 2012

Some simplified geometrical properties of elephant grass and sugarcane trash particles

Edgardo Olivares Gómez; Luís Augusto Barbosa Cortez; Guillermo Alfonso Roca Alarcón; George Jackson de Moraes Rocha; Vinicius Fernandes Nunes da Silva; Eduardo de Almeida


ACS Sustainable Chemistry & Engineering | 2017

Alkaline Pretreatment Severity Leads to Different Lignin Applications in Sugar Cane Biorefineries

Fabrícia Farias de Menezes; Jorge Rencoret; Simone Coelho Nakanishi; Viviane Marcos Nascimento; Vinicius Fernandes Nunes da Silva; Ana Gutiérrez; José C. del Río; George Jackson de Moraes Rocha


Journal of Chemical Technology & Biotechnology | 2016

Using cell recycling batch fermentations to validate a setup for cellulosic ethanol production.

Vinicius Fernandes Nunes da Silva; Simone Coelho Nakanishi; Suzane Rodrigues Dionísio; Carlos Eduardo Vaz Rossell; Jaciane L. Ienczak; Adilson R. Gonçalves; George Jackson de Moraes Rocha


Waste and Biomass Valorization | 2014

Enzymatic Bioremediation of Effluent from Sugarcane Bagasse Soda Delignification Process

George Jackson de Moraes Rocha; Viviane Marcos Nascimento; Vinicius Fernandes Nunes da Silva

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Ana Maria Souto-Maior

Federal University of Pernambuco

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Eduardo de Almeida

State University of Campinas

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