Table 1.
TOC and product yields from filter paper treated and untreated by various ILs.
| Pre-Treatment | ||||||
| IL or BEDC | [EMIM][Cl] | [AMIM][Cl] | [BMIM][Cl] | [HMIM][Cl] | none | BEDC a |
| temperature (K) | 373 | 373 | 373 | 373 | - | 298 |
| time (min) | 120 | 120 | 120 | 120 | - | 60 |
| C.I. XCI | 45 | 44 | 47 | 48 | 87 | - |
| Hydrolysis | ||||||
| temperature (K) | 533 | 533 | 533 | 533 | 533 | 533 |
| operation time (min) | 60 | 60 | 60 | 60 | 60 | 60 |
| TOC (%) | 98.4 | 89.3 | 82.9 | 57.4 | 91.77 | 102.0 |
| glucose | 14.4 | 28.6 | 13.9 | 9.33 | 14.11 | 26.91 |
| oligomer DP = 2 to 9 | 27.3 | 19.8 | 28.3 | 21.28 | 27.99 | 21.84 |
| sugar b | 41.7 | 48.5 | 42.2 | 30.61 | 42.10 | 48.75 |
| levoglucosan | 1.19 | 3.16 | 1.34 | 0.93 | 2.01 | 24.0 |
| 5-HMF | 3.67 | 4.88 | 2.67 | 1.58 | 5.35 | 5.85 |
| fructose | 2.50 | 1.89 | 2.05 | 1.36 | 3.00 | 3.47 |
| DP = 2 | 8.84 | 6.49 | 10.40 | 7.89 | 16.56 | 10.76 |
| 3 | 6.30 | 5.97 | 7.59 | 4.72 | 4.63 | 5.89 |
| 4 | 4.19 | 3.28 | 4.19 | 3.26 | 3.03 | 2.54 |
| 5 | 3.06 | 1.67 | 2.52 | 2.21 | 1.52 | 1.22 |
| 6 | 1.98 | 1.02 | 1.46 | 1.28 | 1.01 | 0.73 |
| 7 | 1.52 | 0.71 | 1.10 | 0.98 | 0.55 | 0.41 |
| 8 | 0.85 | 0.33 | 0.69 | 0.59 | 0.41 | 0.18 |
| 9 | 0.58 | 0.37 | 0.39 | 0.35 | 0.29 | 0.10 |
| Not identified product c | 49.3 | 30.9 | 34.7 | 23.0 | 39.3 | 1.6 |
a Bis(ethylenediamine)copper(II) solution; b glucose + fructose + DP = 2 to 9; c difference between TOC yield and total yield of product measured.