在吸附乙,环素和丁酸盐后,研究基于煤的活性炭的热风险
Lanyun Wang1,2,3, Qinghui Fan1, Yan Wang1,2,3
1School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China.
ACS omega
|September 25, 2023
概括
将挥发性有机化合物 (VOC) 吸附到基于煤的活性炭 (CBAC) 上,大大提高了其可燃性. 这导致更快的点火,更高的热释放率和更高的CO产量,造成火灾和爆炸风险.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 燃烧科学 燃烧科学
背景情况:
- 基于煤的活性炭 (CBAC) 被广泛用于吸附挥发性有机化合物 (VOC).
- 当含有VOC的CBAC暴露在氧化条件下时,可能发生意外燃烧和爆炸.
- 了解VOC吸附CBAC的燃烧行为对于防止火灾和爆炸至关重要.
研究的目的:
- 研究CBAC在吸附常见VOC之前和之后的氧化和燃烧特性.
- 量化VOC吸附对CBAC的点火和燃烧行为的影响.
- 评估使用CBAC捕获VOC的安全影响.
主要方法:
- 用乙,环素和乙乙加载的CBAC样品的准备.
- 使用热重力测量分析 (TGA) 分析氧化和燃烧特性.
- 评估消防性能指标,包括热释放率和点火时间,使用形热量计.
主要成果:
- 吸附的VOC在较低的温度下启动燃烧,释放热量加速CBAC氧化.
- 吸附VOC的CBAC样本显示显著提高了燃烧速度.
- 关键的燃烧参数,如点火时间,峰值热释放率和CO产量受到不利影响.
结论:
- 在CBAC上的VOC吸附促进了外热氧化反应.
- 吸附的VOC的存在大大增加了CBAC的可燃性.
- 调查结果强调了与VOC和CBAC相关的火灾和爆炸风险增加,需要采取安全预防措施.
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