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Title: Shock Tube Study on the Thermal Decomposition of Ethanol
Journal: J. Phys. Chem. A
Volume: 115
Page(s): 8086 - 8092
Year: 2011
Book Title: ''
Editor: ''
Publisher: ''
Publisher address: ''
Comments: ''
Reference type: Journal article
Squib: 2011WU,/MAT8086-8092
Reaction:
C2H5OH → ·CH3 + (·)CH2OH
Reaction order:
1
Temperature:
1449 - 1700
K
Pressure: 1.00 - 2.05 bar
Rate expression:
4.06x1011 [±1.3x1010 s-1] e-244445 [±11225 J/mole]/RT
Category: Experiment
Data type:
Derived from fitting to a complex mechanism
Pressure dependence:
Rate constant is pressure independent
Experimental procedure:
Shock tube
Excitation technique:
Thermal
Time resolution:
In real time
Analytical technique:
Vis-UV absorption
Comments:
Rate expression was obtained by combining the branching ratios of the methyl-producing channel determined experimentally at three different pressures over the 1449 - 1760 K temperature range with the expression for the overall reaction rate constant. The observed pressure dependence of the measured channel branching fraction is obscured by the scatter of the data on the overall reaction rate constant.
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Rate constant values calculated from the Arrhenius expression:
| T (K) | k(T) [s-1] |
|---|---|
| 1449 | 6.26E2 |
| 1450 | 6.35E2 |
| 1475 | 8.96E2 |
| 1500 | 1.25E3 |
| 1525 | 1.72E3 |
| 1550 | 2.35E3 |
| 1575 | 3.17E3 |
| 1600 | 4.25E3 |
| 1625 | 5.64E3 |
| 1650 | 7.42E3 |
| 1675 | 9.68E3 |
| 1700 | 1.25E4 |