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- 저자 : Dmitrii A. Emelianov (검색결과 1 건)
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Chengdong Yuan,Dmitrii A. Emelianov,Mikhail A. Varfolomeev,Mustafa Abaas 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.76 No.-
The combustion behavior of aromatics (p-quaterphenyl, thioxanthone, pyrene) and their interaction withn-alkane (tetracosane) were investigated by high-pressure differential scanning calorimetry (HP-DSC). Tetracosane only showed low-temperature oxidation (LTO), while p-quaterphenyl and thioxanthone onlyshowed high-temperature oxidation (HTO). Pyrene exhibited a unique middle-high temperatureoxidation (M-HTO). Tetracosane significantly promoted the HTO of p-quaterphenyl and thioxanthone,and shifted their HTO into lower temperatures. While p-quaterphenyl and thioxanthone did notsignificantly affect the occurrence of the LTO of tetracosane, but they did reduce the heat release andreaction rate of the LTO of tetracosane. The co-oxidation of tetracosane and pyrene triggered an intenseinteraction that exerts a strong inhibition on the LTO of tetracosane, and induces an explosive oxidationreaction followed by a mild oxidation from 280 to 325 C. The intense interaction also significantlypromoted the HTO of the pyrene. In general, the interaction strength is in turn pyrene + tetracosane >thioxanthone + tetracosane > p-quaterphenyl + tetracosane. Due to the strong interaction between thealkane and aromatics during their co-oxidation, the additivity of heat release in both LTO and HTO cannotbe applied in terms of reaction process as well as total heat release.
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