Thermal cracking of JP-10 (exo-tetrahydrodicyclopentadiene) was investigated in an annular tubular reactor at atmospheric pressure, in the temperature range of 450～650 ℃ and space time range of 15.44～4.03 s. In a longer space time, the conversion of thermal decomposition of JP-10 was very sensitive to temperature. The major products were methane, ethylene, propylene, butylene, butadiene, cyclopentadiene, benzene, toluene, styrene, vinyl-substituted cyclopentene derivatives and C5/C6 isomers (pentadiene, methyl-substituted cyclopentene derivatives, cyclohexene, hexadiene and methyl-substituted cyclopentadiene derivatives), and the main primary products were determined to be C1～C4 compounds, cyclopentadiene, benzene, toluene and vinyl-substituted cyclopentene derivatives.

Key words: thermal cracking, exo-tetrahydrodicyclopentadiene, space time