A kinetic study on microwave-assisted conversion of cellulose and lignocellulosic waste into hydroxymethylfurfural/furfural

Lacerda, Viviane da Silva; López-Sotelo, Juan B.; Corrêa-Guimarães, Adriana; Hernández-Navarro, Salvador; Sánchez-Báscones, Mercedes; Navas-Gracia, Luis M.; Martín-Ramos, Pablo; Pérez‐Lebeña, Eduardo; Gil, Jesús Martín

doi:10.1016/j.biortech.2014.12.089

Cited by 87 publications

(36 citation statements)

References 37 publications

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“…Under such conditions, a high degree of cellulose hydrolysis is observed, which is accompanied by partial delignification of biomass and the formation of high concentrations of sugar dehydration products. Thus, this method of heating is particularly useful in the production of levulinic acid [28,37,38].…”

Section: Introductionmentioning

confidence: 99%

“…The production of levulinic acid using microwave radiation is relatively poorly recognized and described. Few previously published reports refer primarily to the use of microwaves for the conversion of model substances such as xylan and cellulose or non-wood lignocellulose biomass to furan compounds [18,25,38]. In this work, an attempt has been made to develop an original method of managing wood waste in the production of levulinic acid with the use of microwaves.…”

Section: Introductionmentioning

confidence: 99%

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Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Kłosowski¹,

Mikulski²,

Menka³

2019

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This study aimed to evaluate the use of softwood and hardwood waste for the production of levulinic acid by one-stage conversion using microwave radiation combined with acid catalysis. The analysis demonstrated that the type and concentration of the acid used, the concentration of biomass in the reaction mixture and pressure value had the greatest impact on the yield of levulinic acid. The highest efficiency of carbohydrate conversion to levulinic acid, regardless of the type of raw material, was achieved using a pressure of 225 PSI and sulfuric acid as a catalyst. Maximum yield from biomass, ca. 16.5% for cherry wood chips and ca. 25% for pine chips, was obtained using sulfuric acid at a concentration of 1% v/v and 2% v/v, respectively, for the following process parameters: Exposure time 20 min, biomass concentration 3.3%, and the pressure of 225 PSI. The ratio of actual yield to theoretical yield was high: 64.7% ± 4.5% for pine chips and 43.4% ± 1.0% for cherry wood chips. High efficiency of the presented method of biomass conversion to levulinic acid indicates the possibility of its use for waste management in the wood processing industry. High concentration of levulinic acid in the post-reaction mixture allows for cost-effective extraction and purification of the compound.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Kłosowski¹,

Mikulski²,

Menka³

2019

Catalysts

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“…Several eutectic mixtures such as choline chloride/urea, choline chloride/oxalic acid, choline chloride/betaine, and tetraethylammonium chloride were studied in the conversion of native cellulose and lignocellulosic residues into HMF and furfural (coming from the hemicellulose part of lignocellulosic biomass) [34]. The reaction was carried out at 170 • C for 2 min.…”

Section: Synthesis Of Furanic Derivatives In the Presence Of A Des Comentioning

confidence: 99%

Catalytic Conversion of Carbohydrates to Furanic Derivatives in the Presence of Choline Chloride

Jérôme

Vigier²

2017

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Abstract:The synthesis of furanic derivatives (5-hydroxymethylfurfural (HMF), furfural . . . ) from carbohydrates is of high interest for a wide range of applications. These reactions are carried out in the presence of various solvents, and among them choline chloride can be used. It is a salt that can form a low melting mixture with a carbohydrate (fructose, glucose . . . ) or a deep eutectic mixture with carboxylic acid. A review of the studies performed in the conversion of carbohydrates to furanic derivatives in the presence of choline chloride is presented here with the advantages and drawbacks of this solvent. Choline chloride can enhance the selectivity to HMF by stabilizing effect and allows the conversion of highly concentrated feed. However, the extraction of the products from these solvents still needs improvement.

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“…The samples were allowed to cool down to room temperature. Then, the DES was removed by washing with deionized water (Li et al 2011, Zhang and Zhao 2011, Da Silva Lacerda et al 2015.…”

Section: Treatmentsmentioning

confidence: 99%

Cristalinidad de microfibras de celulosa obtenidas de Cistus ladanifer y Erica arborea

Carrión-Prieto

Martín-Ramos

Hernández-Navarro

et al. 2019

Maderas, Cienc. tecnol.

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The effectiveness of the use of cellulose fibers as particulates/composite reinforcers involves the assessment of the crystallinity of such fibers. The aim of the present work is to provide information on the degree of crystallinity of the cellulose microfibers obtained from the stems of Cistus ladanifer and Erica arborea shrubs through two different methods, namely an alkaline treatment and a microwave-assisted deep eutectic solvent (DES) method. The crystallinity indexes (CrI) obtained from X-ray powder diffraction patterns indicated that higher CrI were attained for cellulose obtained from the DES treatment. Complementary information on the degree of crystallinity was also retrieved from attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) vibrational spectra, scanning electron microscopy (SEM) micrographs, and accessibility data for the DES-treated celluloses from the two species. The crystallinity results for the fibers derived from these two Mediterranean shrubs were within the range of the results for those derived from wood pulp, opening the door to their valorization for cellulose-derived packing applications or for their use as reinforcers in composite materials in combination with other biopolymers.

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A kinetic study on microwave-assisted conversion of cellulose and lignocellulosic waste into hydroxymethylfurfural/furfural

Cited by 87 publications

References 37 publications

Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Microwave-Assisted One-Step Conversion of Wood Wastes into Levulinic Acid

Catalytic Conversion of Carbohydrates to Furanic Derivatives in the Presence of Choline Chloride

Cristalinidad de microfibras de celulosa obtenidas de Cistus ladanifer y Erica arborea

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