Delignification of Miscanthus×Giganteus by the Milox process

Ligero, Pablo; Vega, Alberto; Villaverde, Juan José

doi:10.1016/j.biortech.2009.12.021

Cited by 41 publications

(31 citation statements)

References 13 publications

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“…The Milox process, which is based on the action of the in situ generated peroxyformic acid, is one of the most promising organosolv methods. It was applied successfully on different biomass material and recently on Miscanthus …”

Section: Pre‐treatment Of Miscanthus For the Production Of Bioethanolmentioning

confidence: 99%

Miscanthus: a fast‐growing crop for biofuels and chemicals production

Brosse

Dufour

Meng

et al. 2012

Biofuels Bioprod Bioref

400

229

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Miscanthus represents a key candidate energy crop for use in biomass‐to‐liquid fuel‐conversion processes and biorefineries to produce a range of liquid fuels and chemicals; it has recently attracted considerable attention. Its yield, elemental composition, carbohydrate and lignin content and composition are of high importance to be reviewed for future biofuel production and development. Starting from Miscanthus, various pre‐treatment technologies have recently been developed in the literature to break down the lignin structure, disrupt the crystalline structure of cellulose, and enhance its enzyme digestibility. These technologies included chemical, physicochemical, and biological pre‐treatments. Due to its significantly lower concentrations of moisture and ash, Miscanthus also represents a key candidate crop for use in biomass‐to‐liquid conversion processes to produce a range of liquid fuels and chemicals by thermochemical conversion. The goal of this paper is to review the current status of the technology for biofuel production from this crop within a biorefinery context.

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Section: Pre‐treatment Of Miscanthus For the Production Of Bioethanolmentioning

confidence: 99%

Miscanthus: a fast‐growing crop for biofuels and chemicals production

Brosse

Dufour

Meng

et al. 2012

Biofuels Bioprod Bioref

400

229

View full text Add to dashboard Cite

show abstract

“…This acid is an environmentally friendly alternative to bleaching because it is a totally chlorine-free process resulting in less damage to the fiber [32]. Organosolv methods for the production of cellulose from Miscanthus are discussed in the works [11,27,42,43]. We also studied the obtaining of cellulose from non-wood plant materials in both peracetic and performic acids [2,7,8] and in cooking solutions of ethanol, methanol, and isobutanol alcohols [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Preparation and application of nanocellulose from Miscanthus × giganteus to improve the quality of paper for bags

2020

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We present the study of the preparation of pulp and nanocellulose from Miscanthus × giganteus to improve the quality of the paper for bags. The organosolv miscanthus pulp (OMP) was prepared by the environmentally friendly organosolv method-cooking in a solution of peracetic acid at the first stage and the alkaline treatment at the second stage. Nanocellulose was obtained by hydrolysis of never-dried OMP and subsequent ultrasonic treatment. Structural changes and crystallinity index of OMP and nanocellulose were studied by SEM and FTIR methods. X-ray diffraction analysis confirmed an increase in the crystallinity of OMP and nanocellulose as a result of thermochemical treatment. The nanocellulose had a density of up to 1.6 g/cm 3 , transparency up to 82%, a crystallinity index of 76.5%, and tensile strength up to 195 MPa. The AFM showed that the particles of nanocellulose have a diameter in the range from 10 to 20 nm. A TGA analysis confirmed that nanocellulose films have a denser structure and lower mass loss in the temperature range 320-440 °C compared to OMP. We established the positive effect of nanocellulose application on the physical and mechanical properties of paper for bags. The application of nanocellulose allows replacing synthetic reinforcing materials and more expensive sulfate unbleached pulp with waste paper in the production of paper and cardboard.

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“…Previous studies reported pretreatment of M.×giganteus using sulfuric acid/ethanol/water, formic acid/acetic acid/water, formic acid/hydrogen peroxide/water, aqueous NaOH, ethylenediamine/DMSO, ethylenediamine/1‐butyl‐3‐methylimidazolium dimethylphosphate, 1‐ethyl‐3‐methylimidazolium acetate with ammonia and/or oxygen, autohydrolysis in water with and without 2‐naphthol, ozone/ethanol and electrolyzed water with or without alkaline peroxide . For these processes, solvent recovery and/or waste‐water disposal are often difficult, expensive and energy‐consuming.…”

Section: Introductionmentioning

confidence: 99%

Pretreatment of Miscanthus×giganteus using aqueous ammonia with hydrogen peroxide to increase enzymatic hydrolysis to sugars

Afzal

Yang

et al. 2013

J of Chemical Tech & Biotech

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BACKGROUND Miscanthus×giganteus (M.×giganteus) is a potential source for bioethanol or other useful products. Pretreatment of lignocellulosic biomass is an essential step prior to enzymatic hydrolysis to sugars and fermentation to bioethanol. RESULTS In this work, a one‐step process uses aqueous ammonia with or without hydrogen peroxide; a proposed two‐step process uses aqueous ammonia in the first step and hydrogen peroxide in the second step. In the two‐step process, overall 89.5% lignin is removed. The pretreated biomass is followed by using cellulase and β‐glucosidase to convert cellulose and hemicellulose from the recovered solid to fermentable sugars. The conversion of cellulose to glucose is 90.2% and to xylose is 73.4%. Characterization data are obtained for the recovered solid using scanning electron microscopy (SEM), attenuated total reflection‐infrared spectroscopy (ATR‐IR), and X‐ray diffraction (XRD) for better understanding of the two‐step process. CONCLUSION Results from the two‐step process using aqueous ammonia and hydrogen peroxide separately are much better than those from the one‐step process for removing lignin and for enhancing conversion to sugars by enzymatic hydrolysis. © 2013 Society of Chemical Industry

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Delignification of Miscanthus×Giganteus by the Milox process

Cited by 41 publications

References 13 publications

Miscanthus: a fast‐growing crop for biofuels and chemicals production

Miscanthus: a fast‐growing crop for biofuels and chemicals production

Preparation and application of nanocellulose from Miscanthus × giganteus to improve the quality of paper for bags

Pretreatment of Miscanthus×giganteus using aqueous ammonia with hydrogen peroxide to increase enzymatic hydrolysis to sugars

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