Lignocellulose Fractionation Using Recyclable Phosphoric Acid: Lignin, Cellulose, and Furfural Production

Weidener, Dennis; Leitner, Walter; Marı́a, Pablo Domı́nguez de; Klose, Holger; Grande, Philipp M.

doi:10.1002/cssc.202002383

Cited by 27 publications

(23 citation statements)

References 51 publications

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“…Around 80% of cellulose in original biomass was maintained, while over 98% of hemicellulose was removed (ESI Table S3 †), demonstrating a low degradation of cellulose and a high fractionation selectivity during the pretreatment. 37 For 60 min pretreatment using pure DMI, the lignin removal efficiency was lower than that using DMI/H 2 O co-solvent (60 min_9 : 1). This is probably due to the increased mass transfer of acidic catalyst induced by the addition of water and therefore the enhanced cleavage of ether bounds in lignin and among lignin-carbohydrate complexes (LCC).…”

Section: Fractionation Of Eucalyptus With Dmi/h 2 O Co-solventsmentioning

confidence: 87%

Efficient pretreatment using dimethyl isosorbide as a biobased solvent for potential complete biomass valorization

Yang

Meng

et al. 2022

Green Chem.

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Section: Fractionation Of Eucalyptus With Dmi/h 2 O Co-solventsmentioning

confidence: 87%

Efficient pretreatment using dimethyl isosorbide as a biobased solvent for potential complete biomass valorization

Yang

Meng

et al. 2022

Green Chem.

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“…Around 80% of cellulose in original biomass was maintained, while over 98% of hemicellulose was removed (SI Table S4), demonstrating a low degradation of cellulose and a high fractionation selectivity during the pretreatment. 35 For 60 min pretreatment using pure DMI, the lignin removal efficiency was lower than that using DMI/H2O co-solvent (60 min_9:1). This is probably due to the increased mass transfer and interactions between solvent/acidic catalyst and lignin induced by the addition of water.…”

Section: Fig 1 Schematic Diagram Of Dmi/h2o Co-solvent Pretreatmentmentioning

confidence: 87%

Efficient pretreatment using dimethyl isosorbide as a biobased solvent for potential complete biomass valorization

Yang

Meng

et al. 2022

Preprint

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An efficient and sustainable pretreatment, such as organosolv pretreatment that produces high-quality lignin and highly digestible carbohydrates, could enable the potential complete utilization of lignocellulosic biomass. Demand for bio-based solvents with a high boiling point, low viscosity, and negligible toxicity is increasing. Herein, we report the use of dimethyl isosorbide (DMI) as a solvent to fractionate lignocellulosic biomass into its main components for the first time. High lignin removal efficiency (91.2%) with good cellulose retention (around 80%) could be achieved during the pretreatment of Eucalyptus by DMI/H2O co-solvents under a mild condition. A near-complete cellulose conversion to its monosaccharide could be realized at a relatively low enzyme loading of 20 FPU g−1 glucan. The addition of water could suppress the condensation of lignin, yielding high-quality lignin with a good fraction of β-O-4 linkages reserved (24.8%) and homogeneous molecular weight (Đ<2) suitable for depolymerization to mono-aromatic chemicals. Besides its highly digestible nature, the high quality of the cellulose-rich residue is also demonstrated from a material perspective. A more efficient fibrillation of obtained pulp to nanocellulose was developed, leading to a promising potential of energy saving compared to the traditional bleaching pathway. Overall, this work developed a mild pretreatment technology as a potential basis for a green and closed-loop biorefinery concept for converting lignocellulosic biomass to multiple products (high-quality lignin, fermentable sugars, or functional materials).

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“…to have a beneficial effect as well 22 . Due to the variety in composition, however, the process needs optimization, depending on the different feedstocks 21 .…”

Section: Discussionmentioning

confidence: 99%

Fractionation of Lignocellulosic Biomass using the OrganoCat Process

Schoofs

Weidener

Schurr

et al. 2021

JoVE

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The shift from a petroleum-based to a more sustainable and bio-based economy requires the development of new refinery concepts to maintain the supply of raw materials and energy. For these novel and sustainable biorefinery concepts, it is important to use catalysts and solvents that are aligned with the principles of Green Chemistry. Therefore, the implementation of biogenic alternatives can be a promising solution. The lignocellulose pretreatment and fractionation process presented herein-OrganoCat-is an integrated fractionation of lignocellulose into its main components using biogenic acids such as 2,5-furandicarboxylic acid as catalyst. Hemicelluloses and other non-cellulosic polysaccharides are selectively depolymerized by the diluted acid and dissolved, while the crystalline cellulose remains in the solid pulp. In the presence of a second organic phase consisting of biogenic 2-methyltetrahydrofuran, disentangled lignin is extracted in situ. The process allows for the efficient fractionation of the three main components-lignin, cellulose, and non-cellulosic sugars. This helps to focus on the quality of the lignin, the improvement of enzymatic hydrolysis of the cellulose-enriched pulp, and the mild non-cellulosic sugar extraction with low degradation.

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Lignocellulose Fractionation Using Recyclable Phosphoric Acid: Lignin, Cellulose, and Furfural Production

Cited by 27 publications

References 51 publications

Efficient pretreatment using dimethyl isosorbide as a biobased solvent for potential complete biomass valorization

Efficient pretreatment using dimethyl isosorbide as a biobased solvent for potential complete biomass valorization

Efficient pretreatment using dimethyl isosorbide as a biobased solvent for potential complete biomass valorization

Fractionation of Lignocellulosic Biomass using the OrganoCat Process

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