Recyclable deep eutectic solvent coupling sodium hydroxide post-treatment for boosting woody/herbaceous biomass conversion at mild condition

Zhou, Xuelian; Huang, Tianjiao; Liu, Jue; Gao, Huanli; Bian, Huiyang; Wang, Ruibin; Huang, Chen; Sha, Jiang

doi:10.1016/j.biortech.2020.124327

Cited by 44 publications

(8 citation statements)

References 30 publications

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“…The synthesis of DESs was carried out in a glass flask. The acceptor and donor of the hydrogen bond were mixed according to a molar ratio of 1/2, 1/1, 1/2 to prepare ChCl–Pho (1:2), ChCl–TsOH (1:1), and ChCl–BOA (1:2), respectively, with the structures shown in Figure 1 33–35 . The mixtures were heated with stirring for 1 h after the appearance of homogeneous liquid phase in the oil bath.…”

Section: Methodsmentioning

confidence: 99%

Effects of deep eutectic solvents on H₂SO₄‐catalyzed alkylation: Combining experiment and molecular dynamics simulation

Sha

Zheng

et al. 2022

AIChE Journal

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To enhance the catalytic performance of H2SO4‐catalyzed alkylation, various catalytic additives have drawn considerable attentions. Herein, the effects of deep eutectic solvent (DES) additives on catalytic performance and the interfacial properties of H2SO4 alkylation were systematically investigated using experimental methods and molecular dynamics (MD) simulation. Experimental results indicate that DESs with the optimal concentration about 1.0 wt% can efficiently improve C8 selectivity and research octane number of alkylate, especially at low temperature, but contribute less to the lifetime of H2SO4. MD results reveal that the phenyl molecules of DESs additives play a major role in enhancing interfacial properties of H2SO4 alkylation, including enlargement of interfacial thickness, promotion of isobutane relative solubility and diffusion to butene, which is probably the main reason for the better quality of alkylate. This work gives a good guideline for the design of novel DESs for H2SO4 alkylation.

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Section: Methodsmentioning

confidence: 99%

Effects of deep eutectic solvents on H₂SO₄‐catalyzed alkylation: Combining experiment and molecular dynamics simulation

Sha

Zheng

et al. 2022

AIChE Journal

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“…ChCl/p-TsOH treatment coupled with NaOH post-treatment was effective for poplar residues and herbaceous miscanthus valorisation. A near-complete enzymatic hydrolysis yield could be achieved: per 1.5 kg dried biomass, 648.0 g (poplar) and 637.7 g (Miscanthus) glucose could be obtained [87].…”

Section: Use Of Des For the Treatment Of Lignocellulosic Biomassmentioning

confidence: 97%

Deep Eutectic Solvents for the Valorisation of Lignocellulosic Biomasses towards Fine Chemicals

Scelsi

Angelini

Pastore

2021

Biomass

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The growing demand for energy and materials in modern society pushes scientific research to finding new alternative sources to traditional fossil feedstocks. The exploitation of biomass promises to be among the viable alternatives with a lower environmental impact. Making biomass exploitation technologies applicable at an industrial level represents one of the main goals for our society. In this work, the most recent scientific studies concerning the enhancement of lignocellulosic biomasses through the use of deep eutectic solvent (DES) systems have been examined and reported. DESs have an excellent potential for the fractionation of lignocellulosic biomass: the high H-bond capacity and polarity allow the lignin to be deconvolved, making it easier to break down the lignocellulosic complex, producing a free crystallite of cellulose capable of being exploited and valorised. DESs offer valid alternatives of using the potential of lignin (producing aromatics), hemicellulose (achieving furfural) and cellulose (delivering freely degradable substrates through enzymatic transformation into glucose). In this review, the mechanism of DES in the fractionation of lignocellulosic biomass and the main possible uses for the valorisation of lignin, hemicellulose and cellulose were reported, with a critical discussion of the perspectives and limits for industrial application.

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“…The molar ratio of HBA and HBD is also an important parameter that influences the properties of DESs such as conductivity, density, viscosity, stability and pH, which will in turn affect the mass transfer, solute-solvent interaction, and hence the delignification efficiency (Ji et al, 2020). In a study by Zhou et al (2021), higher molar fraction of HBD (p-TsOH) in DESs resulted in higher lignin removal, due to higher lignin solubility in such concentration of DESs. Similar observation was also reported by Fernandes et al (2021).…”

Section: Role Of Dess As Pretreatment Mediamentioning

confidence: 99%

“…Thus, this requires post-treatment to further recover the fractionated lignin. In this context, Zhou et al (2021) performed the alkali (NaOH) post-treatment of DESs pretreated poplar sawdust residues and revealed that lignin recovered was enhanced to 80.9-92.2% as compared 6.4 Biomass pretreatment and transformation using DESs 147 to that of without alkali post-treatment (71.0-78.5 %). Table 6.3 summarizes the studies on lignin removal by DESs.…”

Section: Role Of Dess As Pretreatment Mediamentioning

confidence: 99%

Role of deep eutectic solvents as pretreatment medium for biomass transformation

Yiin

Yap

Mahmod

et al. 2022

Current Developments in Biotechnology and Bioengineering

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Recyclable deep eutectic solvent coupling sodium hydroxide post-treatment for boosting woody/herbaceous biomass conversion at mild condition

Cited by 44 publications

References 30 publications

Effects of deep eutectic solvents on H₂SO₄‐catalyzed alkylation: Combining experiment and molecular dynamics simulation

Effects of deep eutectic solvents on H₂SO₄‐catalyzed alkylation: Combining experiment and molecular dynamics simulation

Deep Eutectic Solvents for the Valorisation of Lignocellulosic Biomasses towards Fine Chemicals

Role of deep eutectic solvents as pretreatment medium for biomass transformation

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Recyclable deep eutectic solvent coupling sodium hydroxide post-treatment for boosting woody/herbaceous biomass conversion at mild condition

Cited by 44 publications

References 30 publications

Effects of deep eutectic solvents on H2SO4‐catalyzed alkylation: Combining experiment and molecular dynamics simulation

Effects of deep eutectic solvents on H2SO4‐catalyzed alkylation: Combining experiment and molecular dynamics simulation

Deep Eutectic Solvents for the Valorisation of Lignocellulosic Biomasses towards Fine Chemicals

Role of deep eutectic solvents as pretreatment medium for biomass transformation

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Effects of deep eutectic solvents on H₂SO₄‐catalyzed alkylation: Combining experiment and molecular dynamics simulation

Effects of deep eutectic solvents on H₂SO₄‐catalyzed alkylation: Combining experiment and molecular dynamics simulation