建立了乙烷氧化脱氢制乙烯原料气及反应产物的气相色谱分析方法。反应样品包括七种组分（Ｏ２ ，Ｎ２ ，ＣＨ４ ，ＣＯ，ＣＯ２ ，Ｃ２Ｈ４ ，Ｃ２Ｈ６） ，在一根色谱柱上不能得到很好的分离，该法改装色谱气路，将两根色谱柱（５Ａ分子筛和Ｐｏｒａｐａｋ － Ｑ） 并联，使用两个串联的热导池（参考池和测量池），获得了满意的分离，重现性好。该方法定量准确，简便迅速。 The gas chromatographic analysis method of ethylene feed gas and reaction products was established for the oxidative dehydrogenation of ethane. The reaction sample consisted of seven components (O2, N2, CH4, CO, CO2, C2H4, C2H6) that were not well separated on a single column. Molecular Sieves and Porapak - Q) in parallel, using two in series thermal conductivity cells (reference and measurement cells), achieved satisfactory separation with good reproducibility. The method is accurate, simple and rapid.