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Table 5 Effect of different treating steps on the concentration of PHL components

From: A process for purifying xylosugars of pre-hydrolysis liquor from kraft-based dissolving pulp production process

PHL Lignin (g/L) Acetic acid (g/L) HMF (g/L) Xylose (g/L) Xylan (g/L) Xylosugars (g/L)
Origin PHL 9.7 ± 0.49 6.2 ± 0.26 1.9 ± 0.1 12.3 ± 0.68 23.3 ± 0.79 35.6 ± 1.47
PHL-1st 5.7 ± 0.29 11.7 ± 0.59 1.0 ± 0.04 12.1 ± 0.56 23.1 ± 0.99 35.2 ± 1.55
PHL-2nd 2.6 ± 0.17 11.2 ± 0.34 0.1 11.8 ± 0.47 21.3 ± 0.89 33.1 ± 1.36
PHL-4th 0.9 ± 0.07 12.7 ± 0.55 0 11.6 ± 0.52 20.5 ± 0.98 32.1 ± 1.5
Removal (%) 90.7 100 5.7 12.0 9.9