Abstract The focus of this work was to investigate the pyrolysis and combustion behaviors of heavy oil and its low temperature oxidation products by TG/DSC techniques. The results indicated that coke had similar reaction paths and sequences during pyrolysis and combustion process. The pyrolysis of samples mainly showed endothermic effect, while two major exothermic stages (LTO and HTO) were obviously identified on the combustion DSC curves. The magnitudes difference of the remaining mass and activation energy of the samples revealed the difference in the types of substances involved and molecular reactive sites during the pyrolysis and combustion processes.

中文翻译：

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重油及其低温氧化产物的非等温热解和燃烧动力学热分析

摘要 本工作的重点是利用TG/DSC技术研究重油及其低温氧化产物的热解和燃烧行为。结果表明，焦炭在热解和燃烧过程中具有相似的反应路径和顺序。样品的热解主要表现出吸热效应，而在燃烧 DSC 曲线上明显识别出两个主要的放热阶段（LTO 和 HTO）。样品剩余质量和活化能的大小差异揭示了热解和燃烧过程中涉及的物质类型和分子反应位点的差异。