Organosolv Delignification
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Pretreatment and Enzymatic Saccharification of Water Hyacinth, Sugarcane Bagasse, Maize Straw, and Green Coconut Shell Using an Organosolv Method with Glycerol and FeCl3
A method to pretreatment of biomasses using glycerol as a green solvent was developed. Optimization of organosolv pretreatment was performed using a 23 factorial design, investigating synergism among the variables particle size (from < 0.85 to > 2.0 mm), FeCl3 concentration (0.025-0.175 mol L-1), and temperature (160-220 °C). Although the effects of the var
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. INFLUENCE OF PRETREATMENTS ON CRYSTALLINITY AND ENZYMATIC HYDROLYSIS IN SUGAR CANE RESIDUES
ABSTRACT This research evaluated the effect of different delignification pretreatments (enzymatic and organosolv), on the crystallinity and enzymatic hydrolysis of harvested sugar cane residues. The Crystallinity Index (CrI), the Relative Number of Intensity (Ir), the degree of cellulose mercerization (IIC-%), and the Global Index of Saccharification (GIS) w
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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3. Lignin-First Biorefining of Lignocellulose: the Impact of Process Severity on the Uniformity of Lignin Oil Composition
In lignin-first biorefining via reductive processes, lignocellulosic materials are deconstructed by the solvent extraction of lignin in the presence of a hydrogenation catalyst. This approach provides a route to the successful extraction and reductive passivation of lignin fragments to produce low molar mass lignin oils together with high-quality pulps. Here
J. Braz. Chem. Soc.. Publicado em: 2019-03
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4. Determinação da relação dos parâmetros de solubilidade de Hansen de solventes orgânicos com a deslignificação organossolve de bagaço de cana-de-açúcar / Determination of the relation between the Hansen solubility parameters of the organic solvents with the organosolv delignification of sugarcane bagasse
O uso do bagaço de cana-de-açúcar, um subproduto da produção sucroalcooleira, ainda está hoje atrelado diretamente à produção de energia com sua queima nas usinas, um uso que é pouco nobre, considerando-se a grande diversidade de compostos químicos presentes neste tipo de material. A possibilidade de valorização desta matéria-prima lignoceluló
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/03/2012
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5. Pré-tratamento organossolve do bagaço de cana-deaçúcar para a produção de etanol e obtenção de xilooligômeros
Sugarcane bagasse is an abundant lignocelulosic byproduct, due to the high ethanol production from sugarcane juice, which turns this residue an attractive alternative for obtaining cellulosic ethanol and other products of higher value added. However, the use of bagasse requires a pre-treatment step for better use of its fractions. It was proposed in this stu
Publicado em: 2011