Shock-initiated exothermic reactions. VI. The oxidation of ethylene oxide and cyclopropane

1969 ◽  
Vol 22 (7) ◽  
pp. 1355 ◽  
Author(s):  
LJ Drummond ◽  
J Kikkert
Keyword(s):  
Shock Waves ◽  
Ethylene Oxide ◽  
Shock Tube ◽  
Induction Period ◽  
Ignition Delay ◽  
Exothermic Reactions ◽  
Induction Periods ◽  
Reflected Shock ◽  
Formaldehyde Oxidation ◽  
Temperature Dependences

Mixtures of ethylene oxide or cyclopropane with oxygen and argon were ignited with reflected shock waves In a shock tube. The temperature dependences of the ignition delay and the growth of light emitted during the induction period to explosion of C2H4O-O2 mixtures indicate that the rate-controlling reaction is that of formaldehyde oxidation. The temperature dependence of induction periods for C3H6-O2 mixtures suggests that a complicated but undetermined mechanism controls the delay to ignition.

Shock-Tube Study of Cr* Chemiluminescence During the Induction Period of the C2H2–O2 Reaction

1971 ◽  
Vol 49 (23) ◽  
pp. 3904-3907
Author(s):  
David Gutman ◽  
Shimpei Matsuda
Keyword(s):  
Shock Waves ◽  
Shock Tube ◽  
Induction Period ◽  
Emission Intensity ◽  
Gas Mixture ◽  
Chain Branching ◽  
Growth Constant ◽  
Reflected Shock ◽  
Tube Study

The Cr* (a7S–y7P) chemiluminescence at 360 nm during the induction period of the C2H2–O2 reaction was studied behind reflected shock waves. When the reaction gas mixture containing 10 p.p.m. Cr(CO)6, 0.5% C2H2, 1.0% O2, and 98.5% Ar was shock heated to 1650 °K, the emission intensity of Cr* grew exponentially with a growth constant equal to the chain branching constant. This observation indicates that reaction(s) leading to Cr* chemiluminescence involve only one chain carrier during the induction period of the C2H2–O2 reaction. The mechanism of the chemical excitation of Cr is discussed.

Shock-initiated exothermic reactions. V. The oxidation of ethylene

1968 ◽  
Vol 21 (11) ◽  
pp. 2641 ◽  
Author(s):  
LJ Drummond
Keyword(s):  
Ethylene Oxide ◽  
Temperature Dependence ◽  
Induction Period ◽  
Exothermic Reactions

Mixtures of C2H4 with 02 or N3O and argon have been ignited with reflected shocks. The temperature dependence of the induction period to explosion suggests that the rate-controlling reaction for the C2H4-02 system is CH2O + O2 + CHO +HO2. Results for the C2H4-N2O system do not identify one particular reaction as being rate-controlling. A combination of reactions is probably involved. Possibilities include the pyrolysis of ethylene and of ethylene oxide and the reaction CH2+N2O → CH+OH+N2.

Low hydrocarbon mixtures ignition delay times investigation behind reflected shock waves

Shock Waves ◽  
2002 ◽  
Vol 11 (4) ◽  
pp. 309-322 ◽  
Author(s):  
N. Lamoureux ◽  
C.-E. Paillard ◽  
V. Vaslier
Keyword(s):  
Shock Waves ◽  
Ignition Delay ◽  
Hydrocarbon Mixtures ◽  
Reflected Shock ◽  
Ignition Delay Times ◽  
Delay Times

Ignition delay time and H2O measurements during methanol oxidation behind reflected shock waves

2019 ◽  
Vol 203 ◽  
pp. 143-156 ◽  
Author(s):  
L.T. Pinzón ◽  
O. Mathieu ◽  
C.R. Mulvihill ◽  
I. Schoegl ◽  
E.L. Petersen
Keyword(s):  
Shock Waves ◽  
Methanol Oxidation ◽  
Ignition Delay ◽  
Delay Time ◽  
Ignition Delay Time ◽  
Reflected Shock

Nonideal effects behind reflected shock waves in a high-pressure shock tube

Shock Waves ◽  
2001 ◽  
Vol 10 (6) ◽  
pp. 405-420 ◽  
Author(s):  
Eric L. Petersen ◽  
Ronald K. Hanson
Keyword(s):  
High Pressure ◽  
Shock Waves ◽  
Shock Tube ◽  
Pressure Shock ◽  
Reflected Shock
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