Table 19. Effects of Co-feeds (Propylene and Ethylene) on Catalytic Fast Pyrolysis of Furans over ZSM-5a,283.
| WHSV
(h–1) |
Conv. (%) | Aromatics
distribution (%) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Entry | Feed | Propylene (in He) | Furan | Olefin | Pfuran (Torr) | T (°C) | Furan | Olefin | Aromatics sel. (%) | Benzene | Toluene | Xylene |
| 1 | Furan | – | 5.9 | – | 6.0 | 600 | 64 | – | 42.6 | 24.3 | 21.8 | 3.9 |
| 2 | Furan | – | 10.4 | – | 6.0 | 600 | 48 | – | 29.2 | 27.5 | 25.1 | 4.6 |
| 3 | Furan | 1.92%b | 10.4 | 11.1 | 6.0 | 600 | 50 | 1 | 40.2 | 28.4 | 30.1 | 7.9 |
| 4 | Furan | 1.94% | 10.4 | 15.6 | 6.0 | 600 | 65 | 16 | 53.8 | 15.3 | 58.6 | 13.6 |
| 5 | Furan | 2% | 10.4 | 16.0 | 6.0 | 550 | 59 | 25 | 65.6 | 8.4 | 53.7 | 18.3 |
| 6 | Furan | 2% | 10.4 | 16.0 | 6.0 | 450 | 54 | 22 | 60.2 | 5.1 | 38.9 | 35.1 |
| 7 | 2-MF | – | 5.7 | – | 4.9 | 600 | 98 | – | 47.3 | 23.8 | 24.5 | 9.2 |
| 8 | 2-MF | 2% | 5.7 | 9.1 | 4.9 | 600 | 99 | 31 | 59.6 | 24.4 | 28.6 | 26.9 |
| 9 | 2-MF | 2% | 5.7 | 9.1 | 4.9 | 450 | 92 | 42 | 66.1 | 6.8 | 17.5 | 48.9 |
| 10 | 2-MF | 2% | 5.7 | 2.9 | 4.9 | 450 | 86 | 43 | 71.1 | 6.9 | 17.1 | 46.5 |
| 11 | 2-MF | 2% | 5.7 | 1.0 | 4.9 | 450 | 79 | 45 | 60.4 | 7.4 | 17.3 | 35.7 |
| 12 | FF | – | 9.0 | – | 7.0 | 600 | 100 | – | 16.7 | 35.5 | 28.6 | 6.9 |
| 13 | FF | 2% | 9.0 | 9.1 | 7.0 | 600 | 100 | 53 | 42.7 | 21.0 | 57.9 | 14.2 |
| 14 | FF | 2% | 9.0 | 9.1 | 7.0 | 450 | 100 | 64 | 38.6 | 6.1 | 38.5 | 38.5 |
| 15 | FA | – | 3.3 | 9.1 | 2.5 | 600 | 100 | – | 42.4 | 9.1 | 13.1 | 13.3 |
| 16 | FA | 2% | 3.3 | 9.1 | 2.5 | 600 | 100 | 29 | 34.4 | 23.4 | 38.2 | 21.7 |
a
Continuous-flow fixed-bed reactor; ZSM-5 (Si/Al = 15) as catalyst; reaction time: 45 s. Products were analyzed by GC-MS and GC-FID-TCD.
b
Co-feeding with ethylene.