DSI无灰型清静分散剂提高喷气燃料高温热安定性的研究

通过静态和动态热氧化安定性实验，考察了抗氧剂、金属钝化剂和DSI无灰型清净分散剂以及它们的协同作用对喷气燃料高温热安定性的影响，并对抗氧剂、金属钝化剂和清净分散剂的抗氧化机理进行探讨。结果表明，无灰型清净分散剂双丁二酰亚胺与抗氧剂、金属钝化剂协同使用，能显著提高喷气燃料的高温热安定性，并且随着组合溶液中双丁二酰亚胺添加量的增加，喷气燃料的高温热氧化安定性提高。

STUDY ON IMPROVING HIGH-TEMPERATURE THERMAL STABILITY OF AVIATION FUEL BY DSI ASHLESS DISPERSANT

The effect of antioxidant, metal passivator, DSI ashless dispersant and their combination on the high-temperature thermal stability of aviation fuel was studied by the static and dynamic thermal oxidation stability tests, and their antioxidation mechanism was discussed. The results showed that the high-temperature thermal stability of aviation fuel could be significantly improved by the combination of DSI ashless dispersant (disuccinimide) with antioxidant and metal passivator. Furthermore, with the increase of disuccinimide content in the combination the thermal stability of aviation fuel was increased.