Experimental and theoretical study on thermal decomposition of methyl butanoate behind reflected shock waves

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86536-86550 ◽  
Author(s):  
A. Parandaman ◽  
M. Balaganesh ◽  
B. Rajakumar
Keyword(s):  
Thermal Decomposition ◽  
Shock Waves ◽  
Theoretical Study ◽  
Rate Coefficients ◽  
Temperature Range ◽  
Reflected Shock ◽  
Methyl Butanoate

The rate coefficients for total decomposition of MB in the temperature range of 1229–1427 K, were reported.

Mass spectrometric studies of chemical reactions in shock waves: the thermal decomposition of nitrous oxide

1969 ◽  
Vol 47 (4) ◽  
pp. 521-538 ◽  
Author(s):  
S. C. Barton ◽  
J. E. Dove
Keyword(s):  
Thermal Decomposition ◽  
Shock Waves ◽  
Rate Coefficient ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Unimolecular Decomposition ◽  
Reflected Shock ◽  
Secondary Reactions ◽  
Gas Reactions ◽  
Collision Mechanism

Apparatus for the mass spectrometric study of rapid gas reactions in reflected shock waves is described. This apparatus has been applied to the thermal decomposition of 2% N2O in Kr at total gas concentrations of about 1.6 × 10−6 mole cm−3, in the temperature range 1800 to 2800 °K. The principal products of the reaction were found to be N2, O2, NO, and O. The rate coefficient for the unimolecular decomposition of N2O was calculated from the experimental data, and the rates of the secondary reactions between O and N2O were estimated. The possibility of the occurrence of a "weak collision" mechanism in the unimolecular reaction of N2O is discussed.

Experimental and Modeling Study of the Thermal Decomposition of C3–C5 Ethyl Esters Behind Reflected Shock Waves

2014 ◽  
Vol 118 (10) ◽  
pp. 1785-1798 ◽  
Author(s):  
Wei Ren ◽  
R. Mitchell Spearrin ◽  
David F. Davidson ◽  
Ronald K. Hanson
Keyword(s):  
Thermal Decomposition ◽  
Shock Waves ◽  
Ethyl Esters ◽  
Reflected Shock ◽  
Modeling Study

scholarly journals A combined high-temperature experimental and theoretical kinetic study of the reaction of dimethyl carbonate with OH radicals

2017 ◽  
Vol 19 (10) ◽  
pp. 7147-7157 ◽  
Author(s):  
Fethi Khaled ◽  
Binod Raj Giri ◽  
Milán Szőri ◽  
Tam V.-T. Mai ◽  
Lam K. Huynh ◽  
...  
Keyword(s):  
High Temperature ◽  
Shock Waves ◽  
Kinetic Study ◽  
Reaction Kinetics ◽  
Dimethyl Carbonate ◽  
Oh Radicals ◽  
Temperature Range ◽  
Reflected Shock ◽  
Kinetics Of

The reaction kinetics of dimethyl carbonate (DMC) and OH radicals were investigated behind reflected shock waves over the temperature range of 872–1295 K and at pressures near 1.5 atm.

On the thermal decomposition of SO2 diluted in Ar behind reflected shock waves

1980 ◽  
Vol 73 (6) ◽  
pp. 3017-3019 ◽  
Author(s):  
Ko Saito ◽  
Teiji Yokubo ◽  
Ichiro Murakami
Keyword(s):  
Thermal Decomposition ◽  
Shock Waves ◽  
Reflected Shock

Shock Tube Studies of the Reactions of Hydrogen Atoms. I. The Reaction H + NH3 → H2 + NH2

1974 ◽  
Vol 52 (7) ◽  
pp. 1171-1180 ◽  
Author(s):  
John E. Dove ◽  
Wing S. Nip
Keyword(s):  
Shock Tube ◽  
Rate Coefficients ◽  
Oh Radicals ◽  
High Concentration ◽  
Hydrogen Atoms ◽  
Elementary Reactions ◽  
Temperature Range ◽  
Reflected Shock ◽  
Branched Chain ◽  
Chain Explosion

The partial equilibrium state following the branched-chain explosion of shock-heated rich H2/O2/diluent mixtures contains a high concentration of H atoms. The conditions under which this state can be used as a source of H atoms for the study of elementary reactions have been investigated. A small amount of NH3 was added to H2/O2/inert gas mixtures in order to measure the rate of the reaction H + NH3 → H2 + NH2. The pseudo-first order decay of NH3 in an approximately ten-fold excess of H atoms was followed by a time-of-flight mass spectrometer which sampled from the reflected shock region in a shock tube. The rate coefficient for this reaction, determined over the temperature range 1500–2150 °K, is 1013.44±0.10 exp −(17 400 ± 1 300 cal mol−1)/RT cm3 mol−1 s−1.It is pointed out that, under certain stated conditions, the method can also be extended to study the rates of elementary reactions involving O atoms and OH radicals. From our experiments, upper limits on the rate coefficients of the reactions OH + NH3 → H2O + NH2 and O + NH3 → OH + NH2 over the temperature range 1620–1920 °K are 8 × 109T0.08 exp (−1100/RT) and 1 × 1013 exp (−6600/RT), respectively.

THE THERMAL DECOMPOSITION OF ETHANE: PART I. INITIATION AND TERMINATION STEPS

1966 ◽  
Vol 44 (4) ◽  
pp. 505-514 ◽  
Author(s):  
M C. Lin ◽  
M. H. Back
Keyword(s):  
Thermal Decomposition ◽  
High Pressure ◽  
Rate Coefficients ◽  
First Order ◽  
Temperature Range ◽  
Order Rate ◽  
Ethyl Radical ◽  
Initiation Reaction ◽  
Ethyl Radicals

The rates of production of methane and butane in the pyrolysis of ethane have been measured over the temperature range 550–620 °C and at pressures of 40–600 mm. At high pressure the rates of formation of both products were first order in ethane, but below 200 mm the first-order rate coefficients decreased. The ratio of methane to butane was consistent with the interpretation that methane is a measure of the initiation reaction and that the combination and disproportionation of ethyl radicals is the main termination step. The order of the decomposition of the ethyl radical with respect to ethane varied between 0.38 and 0.59. The results are discussed in terms of the mechanism of the overall process.

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