The pyrolysis of ethylbenzene has been investigated in shock waves with the laser schlieren technique. Mixtures of 1 and 2% ethylbenzene in krypton were studied for reaction conditions of 1300-1800 K, 70-550 torr. At high temperatures, the initial rapid endothermic dissociation is followed by a regi
The high temperature pyrolysis of ethylbenzene
โ Scribed by K. M. Pamidimukkala; R. D. Kern
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 556 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0538-8066
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โฆ Synopsis
The thermal decomposition of ethylbenzene has been investigated behind reflected shock waves over the temperature and pressure ranges of 1350-2080 K and 0.25-0.5 atm using a 1.6% CxH,o-Ne mixture. Major products of the pyrolysis are C7H,, C,Hi, CGHG, C4H2, C,H,, C2H2, and CH,; CRH, appears throughout the temperature range as a minor product. Comparison of the product profiles obtained by time-of-flight mass spectrometry and the results of model calculations strongly supports the initiation step of p C-C bond homolysis for C,H,o dissociation. A 51 kinetic step reaction mechanism with 24 species was formulated to model the temperature and time dependence of the major products observed in our experiments.
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