Disproportionation risk study for trifluoroethylene composition as low-GWP refrigerants.

Trifluoroethylene (HFO-1123) and its mixtures are considered promising as next-generation Low-GWP (global warming potential) refrigerants. HFO-1123, however, has a potential for explosive disproportionation as with tetrafluoroethylene. The disproportionation risk of the HFO-1123 composition was investigated using a closed vessel explosion apparatus with an electric spark ignition system and evaluated in a risk assessment (RA) for applications in room air conditioners (RACs). Also investigated was the experimental minimum ignition energy (MIE) of the reaction. In this paper, the relationship between the electric spark energy and the molar density of HFO-1123 in the reaction is also discussed.

三氟乙烯（Trifluoroethylene，HFO-1123）及其混合物被认为是极具应用前景的下一代低全球变暖潜势（Low-GWP，global warming potential）制冷剂。然而，与四氟乙烯类似，HFO-1123存在发生爆炸性歧化反应的潜在风险。本研究采用搭载电火花点火系统的密闭容器爆炸装置，对HFO-1123组合物的歧化反应风险开展了实验探究，并针对其在房间空调器（RACs）中的应用场景完成了风险评估（RA）。此外，本研究还测定了该反应的实验最小点火能（MIE），并探讨了电火花能量与反应体系中HFO-1123摩尔密度之间的关联关系。