Products distribution after adding different content of H+a.
| Entry | H+ dosage/mmol | Conversion/% | Yields/% | Carbon balance/% | |||||
|---|---|---|---|---|---|---|---|---|---|
| FFA | HMF | LA | Formic acid | Glucose | Black char (C mol) | ||||
| 1 | 0 | 100 | 35.2 | 27.5 | 4.8 | 5.3 | — | 18.9 | 80.5 |
| 2 | 0.2 | 82.5 | 5.9 | 29.2 | 2.7 | 1.2 | 17.5 | 23.6 | 77.6 |
| 3 | 0.3 | 90.1 | 5.8 | 35.3 | 3.5 | 4.0 | 9.9 | 24.3 | 77.8 |
| 4 | 0.6 | 92.0 | 5.8 | 41.7 | 3.9 | 4.8 | 8.0 | 24.9 | 83.4 |
| 5 | 0.9 | 97.0 | 5.8 | 45.2 | 5.0 | 6.5 | 3.0 | 25.2 | 83.4 |
| 6 | 1.2 | 98.8 | 5.1 | 49.7 | 5.6 | 6.1 | 1.2 | 25.9 | 86.6 |
a
Reaction conditions: 0.2 g of glucose, 0.1 g of Hβ zeolite, 9.5 g of THF, 0.5 g of water, 453 K, 120 min.