对可溶性微型泡灭火剂和盐对煤炭自发燃烧的抑制作用的比较研究
Xiaowei Zhai1,2,3, Yujie Zhou4,5,6, Bobo Song4,5,6
1School of Safety Science and Engineering, Xi'an University of Science and Technology, 58, Yanta Mid. Rd, Xi'an, 710054, Shaanxi, China. zhaixw@xust.edu.cn.
概括
环保的可溶性微型泡灭火器 (DTE) 有效地抑制了煤炭自燃 (CSC). DTE增强了热稳定性,减少了质量损失,超过了传统的抑制剂.
科学领域:
- * 材料科学 材料科学
- * 化学工程 化学工程
- * 环境科学 环境科学
背景情况:
- *煤炭自燃 (CSC) 构成全球重大风险,影响安全和环境.
- * 现有的抑制剂往往具有环境缺点,需要更绿色的替代品.
- * 了解抑制机制对于有效预防CSC至关重要.
研究的目的:
- *为了评估可溶性微型泡灭火器 (DTE) 对于煤炭自燃的有效性.
- *与传统的盐抑制剂相比,研究DTE的抑制机制.
- * 确定DTE对煤炭氧化动力学和热稳定性的影响.
主要方法:
- *热重力测量分析 (TG-DSC) 用于评估煤炭的氧化性能.
- *对DTE,NaCl,MgCl2和CaCl2抑制剂进行比较分析.
- *在高温下确定反应机制和运动参数.
主要成果:
- * DTE显著增加了37°C的煤炭裂变温度,并将点火附近的质量损失降到最低.
- * DTE表现出优越的低温抑制和在高温下增强的热稳定性.
- * 盐抑制剂促进了外热反应,而DTE吸收了大量的热量并释放了最小的热量.
- * DTE处理的煤炭显示了40kJ/mol更高的明显激活能量.
结论:
- *可溶性微型泡灭火器 (DTE) 是一种高效且环保的煤炭自燃抑制剂.
- *与盐抑制剂相比,DTE提供了优越的热稳定性和对煤炭氧化物的动力控制.
- *这些发现支持DTE的应用,作为减轻CSC风险的可持续解决方案.
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