Runaway reactions of organic peroxides (OPs) are a significant issue in process safety, due to their fragile bonds and extensive heat release during abnormal conditions. As one of the typical OPs and an intermediate in the process of producing phenol, cumene hydroperoxide (CHP) is likely to mix with its products and lead to an uncontrollable self-accelerating decomposition reaction. In this study, the thermal hazard of CHP mixed with four products separately was evaluated and identified using accelerating rate calorimeter technology. Experimental data illustrated that the maximum pressure rise rate had greatly increased from 1.1 to 15.5, 18.3, and 41.5 bar min⁻¹, and the maximum self-heating rate had dreadfully raised from 5.4 to 107.7, 116.9, and 231.0°C min⁻¹, when CHP mixed with its products from methanol to phenol, acetophenone, or dimethylphenyl carbinol, respectively. These phenomena indicated a precarious and dangerous reaction decomposition mechanism of CHP after its products mixed under runaway conditions. This work is expected to help researchers and even industrial workers to better identify the potential thermal hazard of CHP in the presence of products; in particular, experimental and calculated parameters are necessary for the appropriate choice of safe conditions of application, waste disposal, storage, and transportation of CHP.

中文翻译：

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与四种产品分别混合的氢过氧化异丙苯在绝热条件下结合风险矩阵法的热失控行为及危害评价

有机过氧化物 (OP) 的失控反应是​​工艺安全中的一个重要问题，因为它们的键很脆弱，并且在异常条件下会大量释放热量。氢过氧化异丙苯（CHP）作为典型的有机磷化合物之一，也是苯酚生产过程中的中间体，很可能与其产物混合，导致不可控的自加速分解反应。在这项研究中，使用加速量热计技术评估和识别了分别与四种产品混合的 CHP 的热危害。实验数据表明，最大压力上升率从 1.1 大幅提高到 15.5、18.3 和 41.5 bar min ^-1，最大自热率从 5.4 大幅提高到 107.7、116.9 和 231.0°C min ^-1，当 CHP 与其产品混合时，分别从甲醇到苯酚、苯乙酮或二甲基苯甲醇。这些现象表明 CHP 的产物在失控条件下混合后的反应分解机制不稳定且危险。这项工作有望帮助研究人员甚至工业工人更好地识别产品存在时 CHP 的潜在热危害；in particular, experimental and calculated parameters are necessary for the appropriate choice of safe conditions of application, waste disposal, storage, and transportation of CHP.