文档介绍：航空喷气发动机润滑油(8B)基础油的合成工艺分析
摘要:以AlCl3为催化剂,1-辛烯、1-癸烯为原料,PAO低聚物、PAO2为稀释剂,考察了合成8B基础油的工艺条件,对合成基础油的结构进行了分析。结果表明,最佳工艺条件为烯烃配比1-辛烯∶1-癸烯=9∶1,AlCl3质量分数为1%,加热反应温度在110 ℃左右,最高反应温度控制在135~145 ℃,反应时间30 min,合成8B基础油,收率在35%左右,经调合而成的航空喷气发动机润滑油(8B)产品满足质量要求。
关键词:8B基础油;凝点;合成;反应温度;分析
中图分类号::A
Synthesis Process Analysis on Aviation Jet Engine Lubricants (8B) Base Oil
LI Hong-ping, HU Xi-yuan, HU Tao, CUI Jian
(PetroChina Lanzhou Lubricant Blending Plant, Lanzhou 730060, China)
Abstract:Taking AlCl3 as catalyst, 1-octene and 1-decene as raw materials, PAO oligomer and PAO2 as diluents, the synthesis process conditions of 8B base oil were investigated, and the structure of synthetic base oil was analyzed. The results showed that, under the optimum conditions of olefin ratio of 1-octene: 1-decene = 9∶1, AlCl3 mass fraction of 1%, reaction temperature of 110
℃,maximum reaction temperature of 135~145 ℃ and reaction time for 30 min, the PAO yield of synthetic 8B base oil can reach about 35%. And the obtained aviation jet engine lubricants (8B) can meet quality requirements.
Key words:8B base oil; pour point; synthesis; reaction temperature; analysis
0引言
聚α-烯烃合成油(简称PAO)产品具有高黏度指数、低凝点、低挥发性、优良的高温氧化安定性等特点,广泛应用于寒区大跨度内燃机油、航空发动机油、液压油、油膜轴承油、空气压缩机油、齿轮油、冷冻机油及润滑脂等的基础油。PAO是在催化剂作用下,以α-烯烃为聚合原料聚合得到的一种规则的长链烷烃。
目前,国外Shell、Mobil和Ethyl等[1]公司现阶段主要对负载催化剂进行研究,国内目前大多还是采用传统的三氯化铝催化剂,在催化剂体系的研究上落