JP-10 is a potential endothermic hydrocarbon fuel (EHF) with a high energy density for the regenerative cooling technology of advanced aircrafts. In this work, pyrolysis and coking of JP-10 were experimentally studied using an electrically heated tube as a flowing reactor under supercritical conditions (4.5 MPa, 550–735 °C). For the supercritical pyrolysis, dicyclopentadiene, exo-TCD4e, and indane/indene were observed with relatively higher selectivity at low conversion, and the selectivities of typical products (ethene, propene, CPD, cyclopentene, and benzene) were lower compared with that under atmospheric pressure, possibly because of the enhanced bimolecular reactions. The heat sink of JP-10 was approximately 2.5 MJ/kg ascribed to the severe coke formation during the pyrolysis. Further characterizations on cokes indicated that the coke in the bulk fluid was about 70–170 times higher than that deposited on the wall, attributed to rapid formation of polycyclic aromatic hydrocarbons (PAHs) of pyrolysis products rather than the wall catalysis.

中文翻译：

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JP-10在再生冷却通道中的超临界热解和焦化

JP-10是一种潜在的吸热碳氢燃料（EHF），具有高能量密度，可用于高级飞机的再生冷却技术。在这项工作中，在超临界条件（4.5 MPa，550–735°C）下，使用电加热管作为流动反应器，对JP-10的热解和焦化进行了实验研究。对于超临界热解，在低转化率下观察到二环戊二烯，exo-TCD4e和茚满/茚的选择性较高，典型产品（乙烯，丙烯，CPD，环戊烯和苯）的选择性低于常压下的选择性。可能是由于增强的双分子反应。JP-10的散热片约为2.5 MJ / kg，这归因于热解过程中严重的焦炭形成。