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- W4297140906 endingPage "139418" @default.
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- W4297140906 abstract "Organic solvent nanofiltration membranes were employed to fractionate birch derived reductive catalytic fractionated (RCF) lignin oil. This lignin oil is highly depolymerized, with most, if not all chemical compounds lighter than 3 kDa. Sixteen commercially available membranes were investigated for the fractionation, in combination with methanol and ethyl acetate as solvents. Membrane performances were quantified using Gaussian fits of gel permeation chromatograms and separation factor calculations. The separation factor was found to be primarily based on affinities instead of size-exclusion. The silicon-based membranes from Borsig (Germany) and PuraMem S600 from Evonik (UK) proved best at separating lignin into different functional fractions, showing monomer separation factors up to 7.4 and providing a permeate fraction with 88 % phenolic monomer purity. These membranes were further examined in batch diafiltration and two-stage filtration. This increased the separation factor from 7.4 to 25.4, and the monomer purity of the permeate to 95 %, proving that membrane purification of the lignin-derived monophenols is technically feasible." @default.
- W4297140906 created "2022-09-27" @default.
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- W4297140906 date "2023-01-01" @default.
- W4297140906 modified "2023-10-18" @default.
- W4297140906 title "Extraction of monophenols and fractionation of depolymerized lignin oil with nanofiltration membranes" @default.
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- W4297140906 doi "https://doi.org/10.1016/j.cej.2022.139418" @default.
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