Table 1
Dilute acid pretreatment of waste paper with different solid:liquid ratios.
Bath ratio TRS (g/l) Xylose (g/l) Phenolics (%)
1:8 2.88 ± 0.133 0.422 ± 0.021 0.016 ± 0.001
1:10 3.27 ± 0.162 0.759 ± 0.039 0.022 ± 0.001
1:12 2.74 ± 0.164 0.432 ± 0.032 0.017 ± 0.002
1:14 2.34 ± 0.117 0.347 ± 0.021 0.014 ± 0.001
Table 2
Dilute acid pretreatment of waste paper with different reaction time.
Time (h) TRS (g/l) Xylose (g/l) Phenolics (%)
1 h 1.022 ± 0.042 0.514 ± 0.022 0.012 ± 0.001
2 h 2.542 ± 0.097 1.213 ± 0.032 0.017 ± 0.001
3 h 2.615 ± 0.096 1.223 ± 0.030 0.019 ± 0.001
4 h 2.855 ± 0.138 1.350 ± 0.029 0.036 ± 0.002
5 h 3.187 ± 0.183 1.931 ± 0.062 0.042 ± 0.001
6 h 3.601 ± 0.196 2.111 ± 0.054 0.059 ± 0.003