Analyzer Description
- Configuration:
- 6-valve, packed and capillary columns, fused silica tubing, TCD / TCD / FID / SCD
- Sample type:
- Natural gas, sour gas, other refinery gases
- Components separated:
- C1 – C7, hydrogen, carbon dioxide, hydrogen sulfide, oxygen, nitrogen, carbon monoxide, carbonyl sulfide, sulfur dioxide, methyl mercaptan, ethyl mercaptan, dimethyl sulfide, carbon disulfide, isopropyl mercaptan, t-butyl mercaptan, n-propyl mercaptan, ethyl methyl sulfide, thiophene, 2-butyl mercaptan, isobutyl mercaptan, diethyl sulfide, n-butyl mercaptan, dimethyl disulfide, 2-methylthiophene, 3-methyl thiophene, diethyl disulfide
- Lower detection limits:
- 20 ppm for hydrocarbons, 100 ppm for permanent gases, 500 ppm for H2S on the TCD, 50 ppb for all sulfur compounds using the SCD
- Methods met:
- ASTM D1945, ASTM D1946, ASTM D7833, UOP 539, Wasson-ECE 383D-SCD, W2639
Typical Chromatogram
Key Features and Benefits
- The trace sulfur 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)
- Fused silica lined system eliminates trace sulfur reactions during injection