Delignification of autohydrolyzed wood in media containing water and a protic ionic liquid

Penín, Lucía; Santos, Valentín; Parajó, Juan Carlos

doi:10.1080/02773813.2020.1746808

Cited by 7 publications

(2 citation statements)

References 48 publications

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“…The empirical modeling of their experiments identified the optimal extraction conditions. [Bmim][HSO 4 ] has a higher delignification activity than [Tea][HSO 4 ] with a lignin removal rate of 90.5% versus 81.9% at 453 K when the ILs contain 22% and 10 wt % of water, respectively . The pretreatment of Eucalyptus kraft pulp with [Bmim][HSO 4 ] and [Tea][HSO 4 ] overcame the damage of cellulose and subsequent reduction of the pulp strength observed in oxygen-mediated delignification and increased lignin removal.…”

Section: Chemical and Physicochemical Delignification Methodsmentioning

confidence: 99%

“…[Bmim][HSO 4 ] has a higher delignification activity than [Tea][HSO 4 ] with a lignin removal rate of 90.5% versus 81.9% at 453 K when the ILs contain 22% and 10 wt % of water, respectively. 240 The pretreatment of Eucalyptus kraft pulp with [Bmim][HSO 4 ] and [Tea][HSO 4 ] overcame the damage of cellulose and subsequent reduction of the pulp strength observed in oxygen-mediated delignification and increased lignin removal. An IL loading of 10 wt % and a pretreatment at 333 K for 1 h prior to the oxygen treatment eased lignin separation and strengthened the pulp fibers.…”

Section: Organosolv Processmentioning

confidence: 99%

See 1 more Smart Citation

Chemical and Biological Delignification of Biomass: A Review

Schieppati,

Patience,

Galli

et al. 2023

Ind. Eng. Chem. Res.

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Lignin is a highly abundant biopolymer with a complex polyphenolic structure, making it a potential source of aromatic precursors, polymers, and energy. However, its thermal stability limits its economic potential, with less than 3 wt % of waste lignin transformed into commodity products. This review focuses on the chemical and biological extraction methods for lignin to promote its valorization, which involves extraction, depolymerization, and fermentation or derivatization. As there is no universal method for extraction due to the heterogeneity of lignin, a range of methods each with their advantages and disadvantages are discussed, including sulfite pulping, Kraft, Organosolv, ozonolysis, steam-explosion, ionicliquids and supercritical CO 2 extraction, and microwave-and ultrasound-assisted extraction. Biological methods, such as bacterial, fungal, and enzymatic delignification, are also explored. The review aims to provide insights to tailor extraction methods to individual needs and promote the sustainable utilization of lignocellulosic biomass.

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Section: Chemical and Physicochemical Delignification Methodsmentioning

confidence: 99%

Section: Organosolv Processmentioning

confidence: 99%