Chemistry of Ionic Liquid, Switchable Solvents, Supercritical Carbon Dioxide and Sub/Supercritical Water

Abaide, Ederson R.; Muller, Cristiano C.; Draszewski, Crisleine P.; Tres, Marcus V.; Mazutti, Márcio A.; Zabot, Giovani L.

doi:10.1007/978-3-030-44984-1_8

Nanotechnology in the Life Sciences

2020

DOI: 10.1007/978-3-030-44984-1_8

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Chemistry of Ionic Liquid, Switchable Solvents, Supercritical Carbon Dioxide and Sub/Supercritical Water

Ederson R. Abaide

Cristiano C. Muller²,

Crisleine P. Draszewski

et al.

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Cited by 4 publications

References 89 publications

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Ionic liquid pretreatment of sweet sorghum bagasse to improve fermentable sugars and platform chemicals obtained from subcritical water hydrolysis

Bragato,

Draszewski,

Celante

et al. 2024

Env Prog and Sustain Energy

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Sweet sorghum bagasse (SSB) is a promising feedstock for cellulosic ethanol production because of its composition and productivity. The use of SSB pretreated with 1‐butyl‐3‐methylimidazolium chloride ([Bmim]Cl) before subcritical water hydrolysis (SWH) aiming the production of fermentable sugars and platform chemicals was investigated. Modifications in the composition of SSB at different conditions (100°C and 120°C; 2, 4, and 6 h) were evaluated by the thermogravimetric analysis. Sequentially, pretreated SSB was submitted to subcritical water hydrolysis, whose conditions were 220°C and 260°C, and solvent/feed ratios of 80 and 100 g water/g sample (R‐80 and R‐100) were considered. Maximum enrichment in hemicellulose content and minimum cellulose content was reached in 2 h for pretreatment at 100°C. SSB pretreated with [Bmim]Cl presented enrichment in hemicellulose content from 37.95 to 90.07%, and a 76.9% reduction in lignin content. Therefore, pretreated SSB from this condition was submitted to SWH, resulting in 19.18 g of fermentable sugars per 100 g of sample at 220°C and R‐100. The yield of fermentable sugars using SSB pretreated with [Bmim]Cl increased 2.05 times compared with unpretreated under the same condition of SWH (220°C/R‐100/10 min). The higher platform chemicals production from pretreated SSB was 15.25 g per 100 g of sample at 220°C and R‐80, lower when compared with untreated SSB at 220°C and R‐100. Optimizing the solvent/feed ratio is crucial for balancing fermentable sugar and platform chemical production via SWH. [Bmim]Cl pretreatment and ratio optimization enhance product yields significantly.

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Ionic liquid pretreatment of sweet sorghum bagasse to improve fermentable sugars and platform chemicals obtained from subcritical water hydrolysis

Bragato,

Draszewski,

Celante

et al. 2024

Env Prog and Sustain Energy

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show abstract

Sequential Process of Subcritical Water Hydrolysis and Hydrothermal Liquefaction of Butia Capitata Endocarp to Obtain Fermentable Sugars, Platform Chemicals, Bio-oil, and Biochar

Costa,

da Cunha,

Draszewski

et al. 2023

Appl Biochem Biotechnol

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Hydrothermal Processing of Lignocellulosic Biomass: an Overview of Subcritical and Supercritical Water Hydrolysis

2022

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Chemistry of Ionic Liquid, Switchable Solvents, Supercritical Carbon Dioxide and Sub/Supercritical Water

Cited by 4 publications

References 89 publications

Ionic liquid pretreatment of sweet sorghum bagasse to improve fermentable sugars and platform chemicals obtained from subcritical water hydrolysis

Ionic liquid pretreatment of sweet sorghum bagasse to improve fermentable sugars and platform chemicals obtained from subcritical water hydrolysis

Sequential Process of Subcritical Water Hydrolysis and Hydrothermal Liquefaction of Butia Capitata Endocarp to Obtain Fermentable Sugars, Platform Chemicals, Bio-oil, and Biochar

Hydrothermal Processing of Lignocellulosic Biomass: an Overview of Subcritical and Supercritical Water Hydrolysis

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