Kinetics of the pyrolysis of cyclohexane using the pulse technique

Aribike, D.S.; Susu, Alfred A.

doi:10.1021/ie00078a003

Cited by 7 publications

(11 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The experimental method and data used by the present authors to validate the proposed mechanisms for the thermal decomposition of n-Heptane and Cyclohexane in the high conversion regime have been presented elsewhere [7][8][9][10]. It is essentially a pulse kinetic set-up and it was adapted from the continuous-flow system used previously for the pyrolysis of cyclohexane [4,5,64].…”

Section: Methodsmentioning

confidence: 99%

“…In the early 1980s there existed special need to investigate also liquid naphthenic feedstocks because petroleum crudes in Nigeria and a good number of countries as well as applicable crude fractions such as naphtha, are largely naphthenic. Furthermore, from the late 1980s to 2010 some researchers including the authors of this work reported on the pyrolysis of pure low and high molecular weight paraffins, olefins and naphthenes as well as mixtures of gaseous and liquid hydrocarbons under high conversion regime ( [7][8][9][10][11][12][13][14][15][16][17][18]).…”

Section: Introductionmentioning

confidence: 99%

“…about 500-600 °C and 10%). The present authors suggested mechanistic models for the pyrolysis of pure low and high molecular weight hydrocarbons under conditions of high conversion [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…From the late 1980s to date many studies have been reported on the mechanistic modeling of the pyrolysis of aliphatic, naphthenic and aromatic hydrocarbons [1,7,8,9,10,36,37,38,39,40,41]. Furthermore, criteria for the development of complex and non-regular kinetic schemes on hydrocarbon pyrolysis were reported in the literature [42].…”

Section: Introductionmentioning

confidence: 99%

“…In doing this the present study will specifically focus on the pyrolysis of n-heptane and cyclohexane. The mechanistic models so developed will be validated using experimental data from our previous studies [7][8][9][10]. The study will provide insight into the kinetic modeling of the pyrolysis of high molecular weight hydrocarbons such as waste plastics and biomass as well as the combustion reactions of hydrocarbon fuels under high conversion regime.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A review of mechanistic and mathematical modeling of n-heptane and cyclohexane pyrolysis

Aribike

Susu

2018

Appl Petrochem Res

View full text Add to dashboard Cite

An extensive literature review of the mechanistic modeling of n-heptane and cyclohexane pyrolysis was carried out. It was shown that Rice-Kossiakoff free radical theory does not adequately account for product distributions of n-heptane pyrolysis in the high conversion regime. Secondary reactions of alpha higher olefins and di-olefins accounted for the major products (ethene, propene and 1-butene) of n-heptane pyrolysis. Predicted product distributions (CH 4 , C 2 H 4 , C 3 H 6 , 1-C 4 H 8 and 1,3-C 4 H 6) of n-heptane pyrolysis showed very good agreement with experimental data. The product distributions of cyclohexane pyrolysis in the high conversion regime were rationalized and adequately accounted for using decomposition reactions of cyclohexyl bi-radicals followed by secondary reactions of major primary products such as C 3 H 6 and 1,3-C 4 H 6. The latter expanded mechanism can be used to model cyclohexane pyrolysis in the high conversion regime. Rate parameters (pre-exponential factors and activation energy) for each of the elementary reactions of n-heptane mechanistic model were either obtained from the literature or estimated using thermochemical parameters. The use of steady state approximation in mathematical modeling of n-heptane pyrolysis led to erroneous results.

show abstract