采用多维气相色谱快速分析碳二烃加氢除炔尾气的组成

Rapid composition analysis of C_2 fraction hydrogenation tail gas by multidimensional gas chromatography

采用反吹-7柱联用-双检测器-多通道切换多维气相色谱技术定性、定量分析碳二烃加氢除炔尾气中的各组分。结果表明,建立的分析方法准确度和精密度均较高,平行测试6次,14种组分的相对标准偏差范围为0.07%～1.98%,加标回收率为99%～103%。

Every component in C2 fraction hydro- genation tail gas was qualitatively and quantitatively analyzed by back flushing technology with a 7 col- umn combined running - double detector - multi- channel switched multidimensional gas chromato- graph. The results showed that the method estab- lished in this test had higher accuracy and preci-sion. The relative standard deviations nents ranged from 0.07% to 1.98% tests, and the recoveries of standard 99% to 103%. of 14 eompo- for 6 parallel addition from