摘要
采用分馏、化学萃取、柱色谱分离提纯等方式对克拉玛依九区重质原油中的环烷酸进行了分离,利用红外光谱、核磁、质谱等分析手段对其结构进行了分析表征,并通过结构模型模拟计算出环烷酸的组成分布。结果表明,该原油馏分中脂肪酸、芳香酸含量很少,主要的有机酸为甲基含量较多、支化度较高、羧基是直接或仅隔少数(n小于4)次甲基与5或6元环(以5元环居多)相连的环烷酸,且主要是以1,2,3环环烷酸结构形式存在。
The naphthenic acids were separated from Jiuqu heavy crude of Karamay by adopting fractionation,chemical extraction and column chromatography purification,and the structure were characterized by using infrared spectroscopy,nuclearmagneticresonance,and electron ionization mass spectroscopy.The composition distribution of naphthenic acids were simulated through a structure model.The results showed that in oil fraction,there were little fatty acid and aromatic acid many naphthenic acids with more methyls and b...
出处
《石化技术与应用》
CAS
2010年第2期150-154,共5页
Petrochemical Technology & Application
关键词
克拉玛依九区重油
环烷酸
馏分油
分离提纯
结构表征
组成分布
Jiuqu heavy rude of Karamy
naphthenic acids
fraction oil
separation
structure characterization
composition distribution
