泽奥利特ZSM-5对聚钢的热解的影响:从稳定到催化
Qing-Yuan Ma1, Zhen Huang1, Xuan Ren1
1Department of Packaging Engineering, Tianjin University of Commerce, China.
Turkish journal of chemistry
|January 4, 2024
概括
聚乙烯 (PS) 与ZSM-5热带石的热解显示,随着热带石含量增加,从稳定转向催化. 动力分析揭示了不同ZSM-5负载的特定反应模型,使PS热解的精确模拟成为可能.
科学领域:
- 聚合物科学 聚合物科学
- 材料化学 材料化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 聚钢 (PS) 是一种广泛使用的塑料,其热分解或热解对于回收和能量回收至关重要.
- 热石,特别是ZSM-5,是已知的催化剂,可以影响化学反应,包括聚合物降解.
- 了解热解过程中PS和ZSM-5之间的相互作用是控制分解途径的关键.
研究的目的:
- 为了研究聚钢 (PS) /ZSM-5热混合物的非热热热解行为.
- 为了动态分析ZSM-5变化热带石度对PS热解的影响.
- 确定热解机制的功能,并确定适合PS/ZSM-5混合体的运动模型.
主要方法:
- 在气氛下对PS/ZSM-5杂交物进行了非异热热解实验.
- 热重力测量数据使用各种异构转换方法进行了动态分析.
- 通过将总体图表方法与补偿效应方法集成来确定溶解机制的功能.
主要成果:
- 低ZSM-5含量 (5-10重量%) 增加了PS的初始热解温度,表明稳定.
- 高ZSM-5含量 (20-30 wt.%) 显著降低了初始热解温度,显示了催化效应.
- 激活能量随着热石负荷的变化而变化,在ZSM-5度较高时下降.
- 针对5,10,20和30%的ZSM-5重量负载分别确定了特定的反应模型 (F0.92,F0.85,F0.56,A1.32).
结论:
- 泽奥-5对PS热解的影响 随着泽奥含量增加,从稳定到催化过渡.
- 准确的动力模型被建立为PS/ZSM-5混合物跨越不同的热带石载荷.
- 确定的动力参数允许对温度依赖的质量转换曲线进行令人满意的模拟.
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