TY - JOUR
T1 - Dynamics and mechanisms of CO production from the reactions of CH2 radicals with O(3P) and O2
AU - Shaub, W. M.
AU - Hsu, D. S.Y.
AU - Burks, T. L.
AU - Lin, Ming-Chang
PY - 1981/1/1
Y1 - 1981/1/1
N2 - A cw CO laser has been used to probe the complete CO vibrational energy distributions in the reactions of CH2 radicals with O(3P) and O2 (3∑-g. The CO formed from the reaction with the atom was concluded to be produced via two equally important channels, (O + C H2 → C O + H2; → C O + 2H,), with an average vibrational energy of 19 kcal/mole, and an approximate vibrational temperature of ≈104K (for v≤12), which is sufficient to account for previously observed CO stimulated emission from O(3P)+CH2. The population inversion derives mainly from the molecular hydrogen elimination channel. In the reaction of CH2 with molecular oxygen, the CO formed is believed to be produced from both a molecular elimination path giving H2O+CO and from two possible atomic or radical production processes, yielding H+CO+OH. We find from analysis of the CO product vibrational energy distribution that 30% of the CO formed is produced via the former path, and 70% is formed from the latter path. This information is important to the detailed kinetic modeling of acetylene and other hydrocarbon combustion systems.
AB - A cw CO laser has been used to probe the complete CO vibrational energy distributions in the reactions of CH2 radicals with O(3P) and O2 (3∑-g. The CO formed from the reaction with the atom was concluded to be produced via two equally important channels, (O + C H2 → C O + H2; → C O + 2H,), with an average vibrational energy of 19 kcal/mole, and an approximate vibrational temperature of ≈104K (for v≤12), which is sufficient to account for previously observed CO stimulated emission from O(3P)+CH2. The population inversion derives mainly from the molecular hydrogen elimination channel. In the reaction of CH2 with molecular oxygen, the CO formed is believed to be produced from both a molecular elimination path giving H2O+CO and from two possible atomic or radical production processes, yielding H+CO+OH. We find from analysis of the CO product vibrational energy distribution that 30% of the CO formed is produced via the former path, and 70% is formed from the latter path. This information is important to the detailed kinetic modeling of acetylene and other hydrocarbon combustion systems.
UR - http://www.scopus.com/inward/record.url?scp=58149407695&partnerID=8YFLogxK
U2 - 10.1016/S0082-0784(81)80084-7
DO - 10.1016/S0082-0784(81)80084-7
M3 - Article
AN - SCOPUS:58149407695
SN - 0082-0784
VL - 18
SP - 811
EP - 818
JO - Symposium (International) on Combustion
JF - Symposium (International) on Combustion
IS - 1
ER -