Biogas Analysis

Analyzer Description

FID, FID, TCD, TCD, 8-valves, 6-packed columns, 4-capillary columns, deans switch
Sample type:
Compounds Separated:
C1 through C5 paraffins and olefins
C5 through C20 paraffins
Benzene, toluene, ethylbenzene, m/p-xylene composite, o-xylene, phenol
Carbon dioxide, argon/oxygen composite, nitrogen, methane, carbon monoxide, hydrogen, helium
Lower detection limits:
10 ppm for hydrocarbons
80 ppm for backflush
100 ppm for hydrogen, helium, argon/oxygen composite
200 ppm for nitrogen, carbon dioxide
400 ppm for carbon monoxide
Methods met:
Wasson-ECE W3208

Typical Chromatogram

FID A Chromatogram

FID B Chromatogram

TCD Chromatogram

Key Features and Benefits

  • Can be configured with an additional GC by heated umbilical for simultaneous analysis of hydrogen sulfide, carbonyl sulfide, ammonia cyanide, and hydrogen cyanide.
  • Cryogenic cooling may be used to separate argon and oxygen.
  • The backflush peak can be tailored to specific samples (e.g. C6+ or C8+ backflush composite peaks).
  • Separate sampling loops eliminate cross contamination.
  • Can be configured with an injector oven for on-line analysis.
  • Fast analysis with hydrocarbon analysis through 1,3-butadiene is complete in under 10 minutes.
  • Detailed analysis with hydrocarbon analysis through n-eicosane is complete in approximately 30 minutes.