Combining steam distillation with microwave-assisted pyrolysis to maximise direct production of levoglucosenone from agricultural wastes

Bouxin, Florent P.; Clark, James H.; Fan, Jiajun; Budarin, Vitaliy L.

doi:10.1039/c8gc02994f

Cited by 28 publications

(9 citation statements)

References 35 publications

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“…Dihydrolevoglucosenone, more commonly known as Cyrene, is a novel green solvent produced from cellulose in a two-step process. − A good hydrogen bond accepting capacity, owing to its one carbonyl and two ether groups, makes Cyrene a polar yet aprotic solvent, with properties similar to other aprotic solvents such as N -methyl-2-pyrrolidone (NMP). Due to its biodegradability and the abundance of its precursor, Cyrene has attracted considerable interest, with studies showing it to be an excellent medium for a wide variety of chemical reactions, − including graphene processing …”

Section: Introductionmentioning

confidence: 99%

The Perspective of Cooperative Hydrotropy on the Solubility in Aqueous Solutions of Cyrene

Abranches

Benfica

Shimizu

et al. 2020

Ind. Eng. Chem. Res.

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Cyrene is an emerging bio-based green solvent that has been shown to have the ability to increase the solubility of hydrophobic substances in water. Even though the water-Cyrene system is an attractive solvent, its applications are hampered by difficulties in the understanding of its solvation mechanism, caused by a delicate chemical equilibrium established between water and Cyrene. This work aims to rationalize the solvent capability of the water-Cyrene system and to establish the mechanisms of solvation through which hydrophobic solutes are dissolved in it.Using the cooperative model of hydrotropy, it is shown that hydrotropy is the solubilization mechanism of hydrophobic solutes in the water-Cyrene system, in most of its concentration range. Furthermore, the ketone form of Cyrene is revealed to be the principal hydrotrope of the system, with the diol form acting as a hydrotrope only at low Cyrene concentration. The parameters of the cooperative model, namely the number of hydrotrope molecules aggregated around the solute and the maximum solubility increase, are shown to be correlated with the hydrophobicity of the solutes quantified by their octanol-water partition coefficient. This result not only supports recent studies on the mechanism of hydrotropy but also adds a predictive ability to the cooperative model, which is then explored to successfully predict the solubility curves of phthalic acid, aspirin, gallic acid and vanillin in water-Cyrene mixtures.

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Section: Introductionmentioning

confidence: 99%

The Perspective of Cooperative Hydrotropy on the Solubility in Aqueous Solutions of Cyrene

Abranches

Benfica

Shimizu

et al. 2020

Ind. Eng. Chem. Res.

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“…Accordingly, the sequence of reactions enabled the production of bioethanol, LGO, and lignin derivatives. The same research group confirmed a selective LGO production from the microwave-assisted pyrolysis of hemicellulose-depleted biomass from barley straw. In the study, the vaporization of water in the wet sample accompanied the isolation of LGO from the pyrolyzing solid under microwave irradiation.…”

Section: Feedstock Optionsmentioning

confidence: 77%

Catalytic Strategies for Levoglucosenone Production by Pyrolysis of Cellulose and Lignocellulosic Biomass

Kudo¹,

Huang

Asano³

et al. 2021

Energy Fuels

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Levoglucosenone (LGO) is a biobased compound that is generated during the pyrolysis of cellulose under catalysis. After several decades of foundational research into production methods, the relatively large-scale industrial production of LGO recently commenced. As a result, research on the application of LGO has increased and extended to the production of commodity chemicals, such as solvents, polymers, resins, and fuels, with LGO as the feedstock, while seeking to minimize production costs. An analysis and summary of previous achievements can help to inform the development of better production methods. We found that existing production methods can be organized into three categories depending on the strategies for exploiting catalysis. This minireview summarizes advances in the technologies used to produce LGO based on each catalytic strategy and recommends possible directions for future research by drawing on knowledge synthesized from the database.

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“…The material was processed at a high temperature and high humidity gas (Tian et al., 2021). Currently, the hot steam generated by microwaves is widely used in food processing, biomaterial drying, and heat treatment (Bouxin et al., 2019; Cao et al., 2018). For example, Xu et al.…”

Section: Research Progress In Microwave Heating With Steam As Carriermentioning

confidence: 99%

Research progress in fluid and semifluid microwave heating technology in food processing

et al. 2022

Comp Rev Food Sci Food Safe

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Microwave is a form of electromagnetic radiation that has high penetration and heating efficiency in food processing. Uneven heating is the main problem of microwave processing, especially in solid foods. Fluid and semifluid media, which are good carriers in microwave processing, have uniform dielectric properties and good material fluidity. Herein, we review the development, application prospects, and limitations of microwave in fluid and semifluid food processing and the research progress in microwave heating with steam as carrier. The mixture of generated steam and tiny micro droplets from food material under the action of microwave can absorb microwave and transfer heat evenly, which effectively improves the uniformity of microwave heating. Due to the relatively uniform dielectric properties and consistent texture of fluid and semifluid food materials, uneven heating phenomenon during their microwave processing can be significantly inhibited. Based on the development of microwave heating technology and equipment design, the microbial inactivation and enzyme inhibition in fluid and semifluid food were improved and food product with better retention of nutrients and sensory profile were produced. Also, microwave radiation can be used to prepare the printing material or process the printed product for 3D food printing, which enhances the added value of 3D printed products and the personalization of food manufacturing. In future research, intelligent control technology can be applied in the microwave processing of fluid and semifluid food materials for various applications. Therefore, the processing conditions can be adjusted automatically.

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Combining steam distillation with microwave-assisted pyrolysis to maximise direct production of levoglucosenone from agricultural wastes

Abstract: The favourable impact of using a wet waste stream of agricultural residues in a biorefinery was studied through a combination of pyrolysis and self-induced steam distillation of hemicellulose depleted barley straw.

Cited by 28 publications

References 35 publications

The Perspective of Cooperative Hydrotropy on the Solubility in Aqueous Solutions of Cyrene

The Perspective of Cooperative Hydrotropy on the Solubility in Aqueous Solutions of Cyrene

Catalytic Strategies for Levoglucosenone Production by Pyrolysis of Cellulose and Lignocellulosic Biomass

Research progress in fluid and semifluid microwave heating technology in food processing

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