Ignition Behavior of the Hexanes

Johnson, J. E.; Crellin, John W.; Carhart, Homer W.

doi:10.1021/ie50535a055

Cited by 15 publications

(5 citation statements)

References 8 publications

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“…The activation energy of re-hexane of 17.5 kcal per mole under the conditions of the experiments (pressure between 2000 and 3000 psi) is less than the value of 25.0 kcal per mole obtained for the ignition of re-hexane at 1 atm of pressure by Johnson et al (2). This would be predicted since the ignition temperature is lower at the elevated pressure.…”

Section: Resultscontrasting

confidence: 63%

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Factors affecting combustion of organic materials in high-pressure environments. Spray ignition of aliphatic hydrocarbons

Brown¹

1971

J. Chem. Eng. Data

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Samples of n-hexane, n-hexadecane, and squalane were used in initial studies of factors affecting combustion of aliphatic hydrocarbons in a high-pressure injection system. Factors considered were temperature, sample size, pressure, catalytic effects, and chemical structure. Ignition delay as a function of these factors was studied. Information on spontaneous ignition (self-ignition) temperatures also is presented. Ignition delay as a function of temperature was the most significant measurement. Relative activation energies were calculated from the data by the Arrhenius theory of reaction rates. Reactant sample size affected the ignition delay at specified pressures and temperature. Under the conditions studied, increasing sample injection pressure and leaving the reactor tube pressure constant decreased ignition delay. Catalytic effects, if any, were not detected and ignition delay increased with the molecular weight of the aliphatic hydrocarbons.

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Section: Resultscontrasting

confidence: 63%

“…The natural logarithm of the ignition delay of these three compounds plotted against 1 / T (Kelvin) gives an approximate straight line (Figure 3-5) which can be related to the Arrhenius reaction rate theory (2).…”

Section: Resultsmentioning

confidence: 84%

Factors affecting combustion of organic materials in high-pressure environments. Spray ignition of aliphatic hydrocarbons

Brown¹

1971

J. Chem. Eng. Data

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“…Consider, for example, the competition between reactions (4a) and (6a). Similarly, isomerization by transfer of an alkyl group occurs (reaction (7)) 151 - 72,77,781, although this is much less common.…”

Section: Ro:+ Hotmentioning

confidence: 99%

“…Moreover, as the 0-0 bond is the weakest in the decomposing radical, the radical usually (although not invariably) produced is the hydroxyl radical. The corresponding breakdown of the alkylperoxyalkyl radicals produced by the infrequent reaction (7) gives alkoxy radicals (and hence alcohols).…”

Section: Ro:+ Hotmentioning

confidence: 99%

The Cool Flames of Hydrocarbons

Fish

1968

Angew. Chem. Int. Ed. Engl.

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“…

Effects of energy liberation and heat transfer 1 he spontaneous ignition of hydrocarbon fuel-air mixtures has been studied in various kinds of apparatus:1. Open heated chambers (3,6, 27) 2. Closed heated chambers or bombs(2, 72, 20) 3.

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confidence: 99%