气相色谱法测定环氧乙烷反应器气体中痕量1,2-二氯乙烷  

Determination of trace 1, 2-dichloroethane in gas in ethylene oxide reactor.

作　　者：郑利红[1] 夏卫星[1] 蒋健[1] 汪新[1] 仵春琪[1] 

机构地区：[1]中国石油独山子石化公司乙烯厂,独山子833600

出　　处：《分析仪器》2007年第2期38-40,共3页Analytical Instrumentation

摘　　要：在乙二醇和环氧乙烷工艺生产过程中,所用银催化剂的活性是靠加入痕量1,2-二氯乙烷来调节的。为了保证银触媒的活性和环氧乙烷的转化率,1,2-二氯乙烷的加入量是非常关键的。本文介绍了以硅油Ⅱ号固定液涂渍Chromosorb WHP担体的色谱柱,采用气相色谱法准确测定了环氧乙烷反应器中痕量1,2-二氯乙烷含量。In the production process of glycol and ethylene, the activity of silver catalyst is regulated by the addition of trace 1,2-dichloroethane. In order to maintain the activity of silver catalyst and conversion efficiency of ethylene oxide, the amount of 1,2-dichloroethane added is very important. This paper presents a GC method which can accurately determine the concentration of trace 1,2-dichloroethane in ethylene oxide reactor. The chromatographic column was packed with Chromosorb WHP coated with silicon oil Ⅱ as stationary phase. Experimental results show that the method is successful.

关 键 词：气相色谱法 环氧乙烷 1 2-二氯乙烷 

分 类 号：O657.71[理学—分析化学]