一种多功能气相色谱仪在天然气分析中的应用

Application of the Multi-Functional GC in the Analysis of Natural Gas

关键词:  气相色谱仪  天然气  组成分析

Key words:  gas chromatography  natural gas  component analysis

摘要:

介绍了一种多功能的气路流程,可用于天然气中无机和有机组分的分析,采用两根填充柱和一根石英毛细管柱组成的一种多维的天然气分析系统。通过在不同时间,采用六通阀和十通阀的切换进样实现了天然气中各组分完全分离的目的。采用毛细管分析柱和FID检测器,使系统对烃类组分的分离和检测范围得到极大的改善,从而增加了系统的应用范围。

Abstract:

A multi-functional gas flow arrangement was used in gas chromatography for analysis of inorganic and organic components of natural gas. Two packed columns and one capillary column composed the multi-function system for analysis of natural gas. By switched the ten–port valve and the six-port valve in different time,the different components were separated. By using capillary column and flame ionization detector,modified the separation and detecting range of hydrocarbon components and increased the application areas of the analysis system.