关于HFO-1234yf/HFO-1216混合物的热分解的实验和理论研究
Hongsheng OuYang1,2, Dongxin Zhang2, Wei Zhang2
1Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China.
ACS omega
|February 16, 2026
概括
像HFO-1234yf/HFO-1216这样的烯烯 (HFO) 混合物显示出作为低GWP制冷剂的前景. 这项研究揭示了它们的热分解发生在170-210°C之间,产生各种热解产物.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 材料科学 材料科学 材料科学
- 热力学是一种热力学.
背景情况:
- 由于高的全球变暖潜力 (GWP),碳水化合物 (HFC) 面临逐步淘汰.
- 烯 (HFOs) 正在成为低GWP的替代品,适用于制冷和热应用.
- 热稳定性对于评估新型制冷剂的长期性能和安全性至关重要,例如HFO-1234yf/HFO-1216.
研究的目的:
- 为了研究HFO-1234yf/HFO-1216混合物的热稳定性.
- 识别分解产物并了解它们的形成机制.
- 评估HFO-1234yf/HFO-1216作为热和有机兰金循环 (ORC) 系统中的工作流体的适用性.
主要方法:
- 热分解的实验分析.
- 使用密度函数理论 (DFT) 进行理论研究.
- ReaxFF的反应分子动力学模拟.
主要成果:
- HFO-1234yf/HFO-1216在170°C和210°C之间分解.
- 分解产品的产量随着温度的增加而增加.
- 在210°C的初级产品包括HF,CHF3,C2F4,C3HF5和C6F12.
- CF3基因被确定为主要的反应性中间体.
结论:
- HFO-1234yf/HFO-1216混合物在热和ORC系统的典型工作温度内呈现热分解.
- 了解分解途径对于预测流体寿命和系统兼容性至关重要.
- 可能需要进一步的研究来减轻降解或选择最佳运行条件.
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