Analyzer Description
- Configuration:
- 6-valve, 7-columns (packed and capillary), TCD / TCD / FID / FID
- Sample type:
- Natural gas, sour gas, other refinery gases
- Components separated:
- C1 – C7, hydrogen, carbon dioxide, hydrogen sulfide, oxygen, nitrogen, carbon monoxide
- Additional column and inlet for oxygenated hydrocarbon separation
- Lower detection limits:
- 20 ppm for hydrocarbons, 100 ppm for permanent gases, 500 ppm for H2S, 400 ppm for carbon monoxide, 10 ppm for oxygenates
- Methods met:
- ASTM D1945, ASTM D1946, ASTM D7833, UOP 539, ASTM D7423, ASTM D7754, Wasson-ECE 383D-OXY, W3391
Typical Chromatogram
Key Features and Benefits
- The oxygenate analysis is performed at the same time as the other analyses
- The backflush peak can be tailored to specific samples (e.g. C6+ or C8+ backflush composite peaks)
- Oxygenates do not contact the hydrocarbon analysis column which eliminates peak shifting