Thermal decomposition of jet fuel model compounds under near-critical and supercritical conditions. 1. n-Butylbenzene and n-butylcyclohexane

Jian Yu, Semih Eser

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36 Scopus citations

Abstract

Thermal decomposition of n-butylbenzene and n-butylcyclohexane was studied under near-critical and supercritical conditions in relation to future jet fuel thermal stability problems. The reactions of n-butylbenzene and n-butylcyclohexane can be explained by free-radical mechanisms, dominated by side-chain cracking. The major liquid products from n-butylbenzene were styrene and toluene. Toluene was the major product in the far supercritical region while styrene was the dominant product in the low-pressure subcritical region. The main liquid products from n-butylcyclohexane were 1-methylcyclohexene and cyclohexane. The 1-methylcyclohexene was a secondary product which was derived from methylenecyclohexane. This conversion was favored at high pressures. High pressures under supercritical conditions promoted radical addition reactions, leading to the formation of some high-molecular-weight compounds which were not observed under low-pressure conditions. The kinetic data obtained for the thermal decomposition of n-butylbenzene and n-butylcyclohexane are in good agreement with the values reported in the literature.

Original languageEnglish (US)
Pages (from-to)4591-4600
Number of pages10
JournalIndustrial and Engineering Chemistry Research
Volume37
Issue number12
DOIs
StatePublished - Jan 1 1998

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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