在多种热气氛下,退役风力轮机叶片的特征组件的演变:热分解特征和运动行为
Haoyun Liu1, Pei Li1, Yonggang Zhou1
1State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, PR China.
Journal of environmental management
|July 3, 2025
概括
本研究研究了使用热解的退役风力轮机叶片 (RFTB) 的热分解. 空气和二氧化碳中的热解比更节能,为回收过程提供了洞察力.
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.
- 可再生能源可再生能源是可再生能源.
背景情况:
- 退役的风力轮机叶片 (RFTB) 由于有限的热分解数据,造成了回收的挑战.
- 了解热解动力学对于有效的热循环和RFTB升级至关重要.
研究的目的:
- 探索RFTBs在各种大气层 (N2,空气,CO2) 下的非同热热溶解动力学.
- 为了确定加热速度和大气对分解阶段和能源效率的影响.
- 为优化RFTBs回收利用热解提供指导.
主要方法:
- 在10-30K/分钟的加热速度下进行的非异热热解实验.
- 在惰性 (N2) 和反应性 (空气,CO2) 大气下分析热分解.
- 应用无模型和模型拟合方法来确定运动参数和机制.
主要成果:
- 根据大气层,RFTBs表现出不同的热解阶段 (Py1,Py2,Gs).
- 反应性大气 (空气,CO2) 促进了自热热解和气化,减少了激活能量.
- 与N2 (148.43-181.34 kJ/mol) 相比,二氧化碳中的热解显示明显较低的明显激活能 (67.76-78.85 kJ/mol).
- 确定了最佳的动力机制,包括随机核和核的生长 (An).
结论:
- 空气和二氧化碳中的自热热解比N2. 2中的传统热解更活跃,更节能.
- 已识别的动力模型准确地描述了RFTBs热解,特别是CO2气化.
- 这些发现为设计和扩展RFTBs热解反应堆提供了关键指导,以实现高效的回收利用.
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