Table 4.
Flame species measured with their respective IEs, maximum mole fractions (Xmax), and positions (P, mm) in furan/oxygen/argon flames
| m/e | Formula | Species | IEs | Mole Fractions | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||
| Literature a | This Work b |
Φ = 1.4 | Φ = 1.8 | Φ = 2.2 | ||||||
|
| ||||||||||
| P | Xmax | P | Xmax | P | Xmax | |||||
| 15 | CH3 | methyl radical | 9.84 | 9.79 | 3.5 | 8.9E-04 | 5.5 | 9.8E-04 | 8.5 | 8.9E-04 |
| 16 | CH4 | methane | 12.71 | 12.71 | 3.5 | 2.1E-03 | 5.0 | 3.9E-03 | 8.0 | 4.3E-03 |
| 26 | C2H2 | acetylene | 11.40 | 11.35 | 3.5 | 1.6E-02 | 5.5 | 2.8E-02 | 8.5 | 3.9E-02 |
| 28 | C2H4 | ethylene | 10.52 | 10.49 | 3.5 | 5.8E-03 | 4.5 | 7.1E-03 | 7.5 | 7.7E-03 |
| 30 | CH2O | formaldehyde | 10.88 | 10.84 | 3.0 | 3.1E-03 | 4.0 | 3.3E-03 | 6.5 | 3.4E-03 |
| 32 | CH3OH | methyl alcohol | 10.84 | 10.83 | − | − | − | − | − | − |
| 39 | C3H3 | propargyl radical | 8.67 | 8.67 | 3.5 | 6.1E-04 | 5.5 | 1.1E-03 | 8.5 | 1.5E-03 |
| 40 | aC3H4 | allene | 9.83 | 9.83 | 3.5 | 3.6E-04 | 5.0 | 5.3E-04 | 8.0 | 8.1E-04 |
| pC3H4 | propyne | 10.36 | 10.34 | 3.0 | 7.7E-04 | 5.0 | 2.4E-03 | 8.0 | 4.2E-03 | |
| 41 | C3H5 | allyl radical | 8.18 | 8.19 | 3.0 | 2.4E-04 | 5.0 | 2.6E-04 | 8.0 | 1.3E-04 |
| 42 | CH2CO | ketene | 9.62 | 9.58 | 2.5 | 1.4E-03 | 5.0 | 1.8E-03 | 7.0 | 2.3E-03 |
| 44 c | C2H4O | ethenol | 9.33 | 9.30 | 3.0 | 4.2E-05 | 4.0 | 4.7E-05 | 6.0 | 4.8E-05 |
| C2H4O | acetaldehyde | 10.23 | 10.22 | |||||||
| 50 | C4H2 | diacetylene | 10.17 | 10.14 | 4.0 | 1.6E-04 | 5.0 | 6.7E-04 | 6.0 | 7.3E-04 |
| 51 | C4H3 | CH2CCCH | 8.06 | 8.10 | − | − | − | − | − | − |
| 52 c | C4H4 | 1,2,3-butatriene | 9.15 | 9.15 | 3.5 | 5.8E-04 | 5.5 | 7.4E-04 | 8.5 | 1.2E-03 |
| C4H4 | vinylacetylene | 9.58 | 9.56 | |||||||
| 54 | C4H6 | 1,3-butadiene | 9.07 | 9.04 | 3.0 | 1.3E-04 | 4.5 | 1.8E-04 | 8.0 | 2.6E-04 |
| 55 | C3H3O | HC=CH-CHO | 9.54 | |||||||
| 56 c | C3H4O | methylketene | 8.95 | 8.91 | 2.0 | 1.9E-04 | 3.5 | 2.6E-03 | 6.0 | 2.9E-03 |
| C3H4O | propenal | 10.11 | 10.09 | |||||||
| 58 | C3H6O | acetone | 9.70 | 9.70 | − | − | − | − | − | − |
| 64 c | C5H4 | 1,2,3,4-pentatetraene | 8.67 | 8.72 | 2.5 | 1.2E-05 | 5.5 | 2.5E-05 | 8.0 | 6.9E-05 |
| C5H4 | 1,3-pentadiyne | 9.50 | 9.48 | |||||||
| 65 | C5H5 | cyclopentadienyl radical | 8.41 | 8.41 | 2.5 | 1.6E-05 | 5.5 | 3.4E-05 | 8.5 | 5.8E-05 |
| 66 c | C5H6 | 1,3-cyclopentadiene | 8.57 | 8.54 | 2.5 | 2.3E-05 | 4.5 | 3.6E-05 | 8.0 | 4.6E-05 |
| C4H2O | ethynylketene | 8.77±0.15 d | 8.70 | |||||||
| 68 | C4H4O | furan | 8.88 | 8.86 | fuel | |||||
| 74 | C6H2 | 1,3,5-hexatriyne | 9.50 | 9.48 | 2.5 | 3.3E-05 | 6.5 | 4.0E-05 | 9.0 | 5.5E-05 |
| 76 | C6H4 | benzyne 3-hexene-1,5-diyne |
9.07 9.03 |
9.06 | 3.0 | 1.6E-05 | 2.5 | 2.2E-05 | 8.5 | 3.9E-05 |
| 78 c | C6H6 | fulvene | 8.36 | 8.40 | 3.5 | 6.0E-05 | 5.0 | 8.6E-05 | 8.0 | 1.5E-04 |
| C6H6 | benzene | 9.26 | 9.23 | |||||||
| 80 | C6H8 | 1,3-cyclohexadiene | 8.25 | 8.23 | 2.5 | 2.0E-05 | 4.0 | 3.0E-05 | 4.5 | 4.0E-05 |
| 82 | C5H6O | 2-methyl-furan | 8.38 | 8.36 | 2.0 | 1.6E-05 | 4.0 | 2.3E-05 | 7.0 | 3.8E-05 |
| 84 | C5H8O | 4-pentyn-2-ol | 10.24 | 10.21 | − | − | − | − | − | − |
| 92 | C7H8 | toluene | 8.83 | 8.80 | 3.5 | 1.0E-06 | 4.0 | 1.5E-06 | 7.0 | 3.4E-06 |
| 94 | C6H6O | phenol | 8.49 | 8.50 | 3.0 | 4.0E-06 | 4.5 | 3.1E-05 | 7.5 | 3.9E-05 |
| 102 | C8H6 | phenylacetylene | 8.82 | 8.79 | — | — | — | — | 8.5 | 2.3E-06 |
| 104 | C8H8 | styrene | 8.46 | 8.47 | — | — | — | — | 7.0 | 4.9E-06 |