甲醇转化制芳烃气水油三相体系中各类产物的色谱分析  

GC analysis of products in gas/oil/water three-phase system obtained from catalytic conversion of methanol to aromatics

作　　者：孙爱明[1] 倪友明[1] 余韵[1] 吴小岭[1] 李涛[1,2] 李光兴[1,2] 

机构地区：[1]华中科技大学化学与化工学院,湖北武汉430074 [2]华中科技大学材料化学和服役失效湖北省重点实验室,湖北武汉430074

出　　处：《应用化工》2010年第9期1408-1412,共5页Applied Chemical Industry

基　　金：国家自然科学基金项目资助(20973068)

摘　　要：讨论了甲醇转化制芳烃过程中气水油三相产物的气相色谱分析方法,即：用配备TCD检测器的气相色谱在线分析C1-C5的各种烯烃和烷烃及CO,CO2等气相产物,用配备FID检测器的GC-112A气相色谱分析含各种芳烃的油相和含未反应甲醇的水相。油相和水相中各组分含量重复测定的相对标准偏差均〈4.0%,两相中总的标样回收率为95.0%-97.6%,满足样品测定的精密度和准确性要求,若三类样品同时分析,完成1次分析仅需要25 min。A gas chromatographic analysis method was developed for the quantitative analysis of all kinds of products in gas/oil/water three-phase system obtained from catalytic conversion of methanol to aromatics.The gas product which contains C1 to C5 hydrocarbons,CO and CO2 was analyzed on-line by a gas chromatograph equipped with a TCD.A GC-112A gas chromatograph equipped with a FID was employed to analyze the oil phase which contains mostly aromatics and the water phase which contains unconverted methanol.The relative standard deviations of repeatedly detecting the components in oil and water phases were all lower than 4.0%,the recoveries of standard components in both oil and water phases were 95.0%～97.6%.It took only 25 min to finish a GC determination if the three-phase samples were analyzed simultaneously.

关 键 词：甲醇 芳烃 催化转化 气相色谱 

分 类 号：O657.71[理学—分析化学]