Lignocellulosic biomass such as wood or straw is a recalcitrant and heterogeneous material that requires a dedicated pretreatment and fractionation prior to further processing. Different technologies were developed to separate lignocellulosic biomass into its main components cellulose, hemicellulose and lignin. From the developed pre-treatment technologies, the organosolv pretreatment was found to have the advantage of using mild solvents that can easily be recovered while obtaining lignin of a high quality (Alvira et al., 2010). Lignin has had limited uses in the past, i.e. as a fuel for combustion to produce heat and electricity. This is currently the typical application for the large amounts of lignin accruing from pulping operations (Kleinert and Barth, 2008). However, due to its high quality, organosolv lignin opens up opportunities for other applications such as a substitute for phenolic resins or
polyurethane compounds (Pandey and Kim, 2011).
Lignocellulosic biomass such as wood or straw is a recalcitrant and heterogeneous material that requires a dedicated pretreatment and fractionation prior to further processing. Different technologies were developed to separate lignocellulosic biomass into its main components cellulose, hemicellulose and lignin. From the developed pre-treatment technologies, the organosolv pretreatment was found to have the advantage of using mild solvents that can easily be recovered while obtaining lignin of a high quality (Alvira et al., 2010). Lignin has had limited uses in the past, i.e. as a fuel for combustion to produce heat and electricity. This is currently the typical application for the large amounts of lignin accruing from pulping operations (Kleinert and Barth, 2008). However, due to its high quality, organosolv lignin opens up opportunities for other applications such as a substitute for phenolic resins orpolyurethane compounds (Pandey and Kim, 2011).
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