全二维气相色谱法用于不同石油馏分的族组成分布研究  

Research of Group Separation of Petroleum Fractions by Comprehensive Two-Dimensional Gas Chromatography

作　　者：花瑞香[1,2] 阮春海[1] 王京华[2] 路鑫[1] 刘军[2] 肖珂[1] 孔宏伟[1] 许国旺[1] 

机构地区：[1]中国科学院大连化学物理研究所,国家色谱研究分析中心,大连116011 [2]中国石油化工股份有限公司广州分公司,广州510726

出　　处：《化学学报》2002年第12期2185-2191,共7页Acta Chimica Sinica

基　　金：国家自然科学基金(No.2 0 175 0 2 8)资助项目

摘　　要：一直以来采用化学法、色谱法或质谱法等多种方法联用分析不同石油馏分中一些目标化合物和芳烃含量,但这些方法操作繁琐,迫切需要改进.作者采用全二维气相色谱方法(GC×GC)研究不同沸程范围的蒸馏汽油、煤油、柴油和裂化柴油的烷烃(P)、烯烃 +环烷烃(O +N)和 1～ 4环芳烃(A)的族分离新方法.经过对柱系统进行选择和对色谱条件进行优化,一个GC×GC方法即可实现对不同石油馏分的族组成分离和目标化合物分离.用标准物对油品中一些特征组分进行定性,并对特征组分和不同沸程的石油馏分的P,(O +N),A族组成进行定量和比较,定量结果的相对标准偏差(RSD)≤ 2.3 %.一个GC×GC方法便可完成原来要几个美国测试和材料协会(ASTM)Chemical method, chromatography and the hyphenation of chromatography and mass spectrometry are often used to analyze target compounds and quantify the aromatics in different petroleum fractions. Due to the complexity, it is essential to improve these traditional methods. After proper selection of column system and optimization of chromatographic conditions, a method of comprehensive two-dimensional gas chromatography (GC x GC) can achieve group separation of paraffins (P), olefins (0) + naphthenes (N), aromatics (A) with 1 to 4 ring in gasoline, kerosene and gas oils with various boiling ranges. Some target components were identified with standards, and P(O + N)A group-distribution in various fractions of petroleum was quantified by volume normalization method with a RSD less than 2.3%. One GC x GC method has achieved the aims that need several ASTM methods.

关 键 词：族组成分布 全二维气相色谱 石油馏分 多环芳烃 

分 类 号：O657.7[理学—分析化学]