关于氧化反应反应机制和过程安全性的研究
Chunsheng Cheng1, Zhenyun Wei1, Xu Ming1
1Chemical Industry Safety Technology & Engineering Center, Shenyang Research Institute of Chemical Industry, Shenyang 110021, Liaoning, China.
ACS omega
|December 18, 2023
概括
这项研究调查了环氧化安全性,发现该过程具有高度外热性,具有显著的热积累. 了解反应机制和分解动力学对于在三烯环氧化过程中管理潜在的高安全性问题至关重要.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 过程安全 过程安全 过程安全
- 有机化学 有机化学
背景情况:
- 氧化反应对于合成各种化学化合物至关重要.
- 高性烯酸化合物在反应控制和安全方面提出了独特的挑战.
- 了解反应机制和热行为对于安全的工业扩展至关重要.
研究的目的:
- 为了研究反应机制和过程安全的氧化,使用一个硬质阻碍的烯酸.
- 量化环氧化反应的外热性质,并评估热积累.
- 为了确定分解动力学,并确定热安全问题.
主要方法:
- 利用在线拉曼光谱和高性能液态染色学 (HPLC) 进行实时过程监控.
- 使用热度计量量化反应热量,测量明显的反应热量和热转换速率.
- 进行了分解动力学研究,以确定热稳定性和最大反应速度的温度.
主要成果:
- 环氧化过程具有显著的外热性,表面反应热量为1340.0kJ·kg-1 .
- 在反应的早期观察到相当大的39.7%的热转化率,这表明热量迅速积累.
- 反应机制涉及迅速形成的酸过氧化物,其次是缓慢的,动力控制的反应与triazolenes.
- 确定了分解温度:TD24 = 89.9 °C和TD8 = 104.1 °C. 这两种分解温度是:TD24 = 89.9 °C和TD8 = 104.1 °C.
结论:
- 用过氧化对三烯的环氧化具有相当大的安全问题,因为它具有显著的外热性和热积累.
- 反应途径由过氧化输入和随后的运动步骤控制,影响过程安全.
- 了解分解动力学对于确定安全的操作温度限制和防止失控反应至关重要.
相关概念视频
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