GC-PONA法分析低烯烃车用汽油中异辛烷的探讨

Discussion on Iso-Octane Detection in Low-O-lefin Gasoline by GC-PONA Method

标准中汽油烯烃含量的减少,添加烷基化组分以提高辛烷值,在国内尚未统一产品标准的现阶段提出了使用气相色谱GC,结合数据库PONA分析方法,分析成品油市场上质量合格的低烯烃含量汽油中的异辛烷含量,与主营炼厂样品进行比较,判断接收的低烯烃含量汽油中所含烷基化成分,以及对低烯烃汽油进行指标间逻辑关系分析,若油品使用性能指标良好,密度符合标准要求,即可接收的简便方法。可为接收低烯烃含量汽油的油品销售企业提供参考。

Using gas chromatography( GC),combined with PONA method,the iso-octane content in the low-olefin gasoline samples from oil products market was determined and compared with the low-olefin gasoline samples from the major refineries,which indicated that alkylate was used as blending components of low-olefin gasoline,providing a reference for the oil sales enterprises receiving low-olefin gasoline.