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首页> 外文期刊>Journal of Hazardous Materials >Experimental and numerical simulation study of the thermal hazards of four azo compounds
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Experimental and numerical simulation study of the thermal hazards of four azo compounds

机译:四种偶氮化合物热危害的实验和数值模拟研究

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摘要

Azo compounds (azos) possess diverse exothermic properties that enable their application in numerous industrial processes, but these properties also engender a corresponding diversity of thermal hazard profiles. This study employed an innovative approach to determine the specific thermal reactions and decomposition hazard profiles of azos. Four typical azos (AIBN, AMBN, ABVN, and AIBME) were assessed using three thermal calorimetry techniques, and results were subsequently analyzed using a nonlinear optimization model. Thermal hazard analysis of small-scale experiments indicated that AIBN had a heat decomposition of 1247 J/g and a maximum pressure increase of 367 psig and thus exhibited more hazardous characteristics than did AMBN, ABVN, and AIBME. This study also obtained the relevant process safety parameters, time to maximum rate, onset and peak temperature, adiabatic temperature rise, and rate of pressure increase to use for later scaled-up applications. The findings of this study can be used to develop a predictive model for the thermal behavior of azos and to provide the necessary basis for the design and selection of precise treatment and appropriate safety systems.
机译:偶氮化合物(偶氮化合物)具有多种放热特性,可以在许多工业过程中应用,但是这些特性还带来了相应的热危害曲线。这项研究采用了一种创新的方法来确定偶氮的特定热反应和分解危险状况。使用三种热量热技术评估了四种典型的偶氮(AIBN,AMBN,ABVN和AIBME),随后使用非线性优化模型对结果进行了分析。小型实验的热危害分析表明,AIBN的热分解为1247 J / g,最大压力增加为367 psig,因此比AMBN,ABVN和AIBME表现出更多的危险特性。这项研究还获得了相关的过程安全性参数,达到最大速率的时间,开始和峰值温度,绝热温度升高以及压力升高速率,以用于以后的放大应用。这项研究的结果可用于建立偶氮化合物热行为的预测模型,并为设计和选择精确处理方法和适当的安全系统提供必要的基础。

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