在花生和聚烯联合热解中的协同效应和动力分析
Zhigang Huang1,2, Jiahui Wu1, Tenglun Yang1
1School of Computer and Artificial Intelligence, Beijing Technology and Business University, Haidian District, Beijing 100048, China.
Foods (Basel, Switzerland)
|April 27, 2024
概括
花生 (PS) 和聚烯 (PP) 的联合热解有效地将废物转化为能源. 这一过程减少了塑料垃圾,并优化了能源消耗,在1:1的比例上显示了协同效应.
科学领域:
- 废物管理 废物管理
- 化学工程是化学工程的重要组成部分.
- 生物质转换生物质转换
背景情况:
- 随着COVID-19大流行,外卖和医疗行业的塑料废物增加了.
- 在中国,花生 (PS) 是一个重要的,未充分利用的废物流.
- 共热解为管理塑料废物和减轻能源需求提供了可行的解决方案.
研究的目的:
- 为了研究花生 (PS) 和聚烯 (PP) 的联合热解.
- 分析PS-PP混合物的热分解行为和动力学.
- 为了确定合热解中的协同效应的最佳混合比率.
主要方法:
- 对PS,PP和PS-PP混合物进行了温度测量分析 (TGA),采用不同的加热速率 (10,20,30°C·分钟-1).
- 应用了动力学分析来了解分解机制.
- 一个多层次的反应机制功能模型被用来阐明共同热解过程.
主要成果:
- 同热解发生在两个不同的阶段:PS分解 (170-400°C) 和PS-PP联合分解 (400-520°C),PP降解主导第二阶段.
- 随着加热速度的增加,观察到热重量计歇斯底里.
- 同热解降低了激活能量,特别是在第二阶段 (R2 > 0.95).
- 协同效应在1: 1 PS:PP混合比率 (PS1-PP1) 中最明显.
结论:
- 花生是合适的生物质,可与聚烯一起进行联合热解.
- 1:1的PS-PP混合物显示出显著的协同效应,增强废物利用和能源效率.
- 了解混合样本中的相互作用机制对于优化共热解过程至关重要.
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