Optimization of Organosolv Based Fractionation Process for Separation of High Purity Lignin from Bagasse

Sawitree Cheiwpanich; Navadol Laosiripojana; Verawat Champreda

doi:10.4028/www.scientific.net/MSF.883.92

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HomeMaterials Science ForumMaterials Science Forum Vol. 883Optimization of Organosolv Based Fractionation...

Optimization of Organosolv Based Fractionation Process for Separation of High Purity Lignin from Bagasse

Abstract:

Lignocellulosic biomass is a renewable source for sustainable production of fuels, chemicals, and other materials with the advantages on its carbon-neutral nature. Fractionation of lignocellulosic materials is a pre-requisite in the biorefinery process in order to convert the cellulose, hemicellulose, and lignin to valuable products with maximized economics prospective. In this work, a modified clean fractionation (CF) process using ternary mixture system of ethyl acetate/methanol/water was studied with the use of acid promoters. H₂SO₄ was found to be the efficient promoter due to low cost compare to other acid promoters. The optimal fractionation conditions operated in the solvent mixture containing 0.025 M H₂SO₄ at 160°C for 50 min led to 63.72% recovery of the cellulose in the solid pulp while 90% and 59.94% of hemicellulose-derived products and lignin were recovered in the aqueous-alcohol and organic fractions, respectively. The enzymatic digestibility of the cellulose-enriched pulp was increased, resulting increasing glucose yield from 38.32% of the native biomass to 70.04% using the hydrolysis reaction with Cellic Ctech2^® at 15 FPU/g. The work demonstrated the applicability of the modified CF process for fractionation of lignocellulose components for integrated biorefinery process.

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Periodical:

Materials Science Forum (Volume 883)

Pages:

92-96

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.883.92

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Online since:

January 2017

Authors:

Sawitree Cheiwpanich*, Navadol Laosiripojana, Verawat Champreda

Keywords:

Biomass, Biorefinery, Lignin, Organosolv Fractionation

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