This application note describes methods for analyzing C1-C6 light hydrocarbons.
The document details the analysis of light hydrocarbons (C1-C6) in refinery gas streams, liquefied petroleum gas (LPG), and natural gas. It highlights the use of an Agilent 6820 Gas Chromatograph configured with a split/splitless inlet, flame ionization detector (FID), and a specific "M" deactivated alumina PLOT column for superior separation power.
| Column Type | PLOT Alumina "M" 50 m x 0.53 mm x 0.25 ym |
|---|---|
| Carrier Gas | Helium |
| Inlet Configuration | Split/Splitless capillary inlet |
| Detector Type | Flame Ionization Detector (FID) |
| Oven Program Start Temp | 40 °C |
| Detector Temperature | 300 °C |
The system is suitable for analyzing light hydrocarbons, including C1-C6 and specifically C4 isomers.
Yes, a second channel using a Thermal Conductivity Detector (TCD) is needed for fixed gas determinations such as carbon dioxide, hydrogen, oxygen, and nitrogen.