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清净分散剂提高喷气燃料热氧化安定性研究

The Research of Using Dispersant to Improve Thermal Oxidation Stability of Jet Fuel

【作者】 张怀安

【导师】 李增和; 张庆森;

【作者基本信息】 北京化工大学 , 应用化学, 2003, 硕士

【摘要】 喷气燃料是国民经济的重要能源,它作为飞机血液在飞机的发展过程中起着重要的作用,尤其是喷气燃料的质量问题关系到飞机的性能与安全。随着航空技术的发展,对喷气燃料的质量要求越来越高,而原有喷气燃料的热氧化安定性已不能满足现代飞机的需要。为了适应现代飞机对喷气燃料热氧化安定性的需求,必须提高喷气燃料的热氧化安定性。 提高喷气燃料热氧化安定性的方法主要有两种:改变炼油工艺和向喷气燃料中添加抗高温添加剂。 本文在国内首次提出了通过选用清净分散剂来提高喷气燃料的高热氧化安定性的可能性,并对清狰分散剂进行了筛选。第一次使用高雷诺数热氧化安定性实验机来定量检测喷气燃料的热氧化安定性。 本文合成了新型耐高温无灰型清净分散剂——大分子硫磷酯,并证明其在喷气燃料中使用有较好的抗高温氧化安定性效果。 通过静态热氧化安定性实验和动态热氧化安定性实验,研究考察了清净分散剂对喷气燃料热氧化安定性的影响。结果证明:大分子硫磷酯和辅助剂共同使用,能显著提高喷气燃料的热氧化安定性,可使喷气燃料的使用温度提高50℃以上。 同时,本文在理论上对清净分散剂的抗氧化机理进行了探讨,并通过元素分析、红外光谱等技术对大分子硫磷酯的结构进行了表征。

【Abstract】 Jet fuel is a sort of important energy to national economy and It is the blood of aircrafts. Jet fuel play a important role during the development of aircrafts. Especially the quality of Jet fuel inflences the performance and safety of aircraft. Along with the development of the aviation technology, the superior quality Jet fuel is needed. But now, the thermal stability of Jet fuel doesn’ t meet the need of modern aircraft. In order to suit the need of modern aircraft, the thermal oxidation stability of Jet fuel must be improved.There are two sort of methods to improve the thermal oxidation stability of Jet fuel, one is changing technology of refine, another is adding the additive to Jet fuels.This thesis for the internal first time puts forward the possibility of using dispersant for improving the thermal oxidation stability of Jet fuel, at same time the dispersant were chosen.This thesis discribed the method of synthesizing the ashless dispersant梑ig molecule phosphosulfurized ester, and certify that It is good for improving thermal stability of Jet fuel.Through the experiment of thermal stability of Jet fuel, the inflence of dispersant to thermal stability of Jet fuel was inspected, the result expresses that one kind of dispersant and assistant can remarkably improve the thermal oxidition stability of Jet fuel.This paper principially discusses the theories of anoxidition of dispersant. this thesis uses the chemical element analysis, IR ect. for the token of the big molecule phosphosulfurized ester.

  • 【分类号】TE626
  • 【被引频次】2
  • 【下载频次】264
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