SO3H-functionalized ionic liquid: Efficient catalyst for bagasse liquefaction

Long, Jinxing; Guo, Baochun; Teng, Junjiang; Yu, Yang; Wang, Lefu; Li, Xuehui

doi:10.1016/j.biortech.2011.08.043

Cited by 61 publications

(54 citation statements)

References 32 publications

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“…Some kinds of ionic liquids such as 1-Butyl-3-methylimidazole chloride ionic liquid were used to the production of 5-hydroxymethylfurfural from lignocellulose [12e15] and other pretreatment processes [16]. 1-(4-sulfobutyl)-3-methylmidazolium hydrogensulfate ionic liquid was also found to exhibit excellent catalytic activity for woody biomass liquefaction [17,18]. These valuable studies have shown that AILs consisting of functionalized imidazolium cations and acidic anions have the potential to substitute for sulfuric acid as catalysts of biomass liquefaction.…”

Section: Introductionmentioning

confidence: 99%

Efficient liquefaction of woody biomass in polyhydric alcohol with acidic ionic liquid as a green catalyst

Fan

et al. 2015

Biomass and Bioenergy

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Section: Introductionmentioning

confidence: 99%

Efficient liquefaction of woody biomass in polyhydric alcohol with acidic ionic liquid as a green catalyst

Fan

et al. 2015

Biomass and Bioenergy

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“…We found that sugarcane bagasse, a typical agricultural residue in South China, could be liquefied efficiently under the catalysis of SO3H-functionalized ionic liquids in subcritical water. More than 48% of volatile chemicals were obtained, but it also exhibited char formation from lignin (Long et al 2011c). Hydrothermal decomposition of rapeseed straw in subcritical water has also been studied.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Depolymerization of Lignin: Understanding the Structural Evolution

Long¹,

Xu²,

Wang³

et al. 2014

BioResources

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The structural evolution of Panicum virgatum lignin during hydrothermal depolymerization was investigated. Product distribution from various temperatures was studied using gas chromatography-mass spectrometry (GC-MS) and gel permeation chromatography (GPC) analysis. The physical-chemical properties of initial lignin, tetrahydrofuran soluble fraction, and char were also comparatively characterized by elemental analysis, scanning electron microscopy (SEM), thermogravimetry (TG), and Fourier transform infrared (FT-IR) spectroscopy. Results showed that both the depolymerization and repolymerization were significantly temperature-dependent. The undesired char formation becomes obvious when the temperature is greater than 180 °C. Further investigation demonstrated that H lignin is the most accessible for hydrothermal depolymerization, whereas S lignin is the most recalcitrant. Moreover, under the thermal effect and the dissolution of the subcritical water, the basic structure of lignin was first collapsed and then further decomposed into low-molecular weight products by the fracture of ether bonds, accompanied by char formation after repolymerization and dehydration.

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“…Previously, an efficient and greener catalytic system for the liquefaction of bagasse, one of the abundant and widely available agricultural residues containing lignocellulose, using IL as catalyst and subcritical water as solvent had been developed [71]. This liquefaction system was powerful and highly selective, but the reaction temperature is relatively high.…”

Section: Transformation For Platform Chemicals In Ilsmentioning

confidence: 99%