Table 39. Aromatics Yields for Catalytic Pyrolysis of Pure Glycerol Using Various Catalystsa.
| Entry | Catalyst | Reaction conditions | Yields | BTX yield | Ref |
|---|---|---|---|---|---|
| 1 | HY | Fixed-bed reactor, T: 400 °C, P: 2 MPa, and W/F: 0.5 h | B: 0.3%, T: 0.9%, X: 1.9% | 3.1% | (1061) |
| 2 | H-ZSM-5 | Fixed-bed reactor, T: 400 °C, P: 2 MPa, and W/F: 0.5 h | B: 1.2%, T: 2.6%, X: 3.6% | 7.4% | (1061) |
| 3 | Dual bed, Pd/ZnO and H-ZSM-5 | Fixed-bed reactor, T: 400 °C, P: 2 MPa, and W/F: 0.5 h | B: 0.7%, T: 5.6%, X: 11.8% | 18.1% | (1061) |
| 4 | H-ZSM-5(23) | Fixed-bed reactor, Catalyst: 1 g, Tp: 400 °C, Tc: 500 °C, P: atmospheric pressure, N2: 1.8 mL min–1, and WHSV: 1 h–1 | B: 6.7 C%, T: 13.3 C%, X: 8.1 C% | 28.1 C% | (1062) |
| 5 | H-ZSM-5(30) | Fixed-bed reactor, T: 400 °C, P: 20 bar, and WHSV: 1 h–1 | B: 6.8 C%, T: 19.8 C%, X: 16.5 C% | 39.2 C% | (1063) |
| 6 | Zn/H-ZSM-5(30) | Fixed-bed reactor, T: 400 °C, P: 20 bar, WHSV: 1 h–1, Zn loading 0.64% | B: 10.0 C%, T: 35.3 C%, X: 20.1 C% | 65.4 C% | (1063) |
| 7 | H-ZSM-5(23)/SiO2 | Fixed-bed reactor, Catalyst: 1 g, Tp: 450 °C, Tc: 500 °C, P: atmospheric pressure, N2: 1.8 mL min–1, WHSV: 1 h–1 | B: 16.5 C%, T: 11.0 C%, X: 3.5 C% | 31.0 C% | (1064) |
| 8 | Zn-ZSM-5/bentonite | Fixed-bed reactor, T: 400 °C, WHSV: 0.228 h–1 | Aromatics: 9.1 wt% | (16) | |
| 9 | Y-type FCC catalyst | MAT reactor, T: 500 °C | Aromatics: 12.7 C% | (238) | |
| 10 | H-ZSM-5 | Fixed-bed reactor, T: 400 °C, P: 1 atm, and W/F: 1 h | Aromatics: 36.8 C% | (1061) |
a
Abbreviated aromatics include benzene (B), toluene (T), and xylenes (X). Tp: pyrolysis temperature, Tc: catalytic vapor upgrading temperature.