Applications

Analyzer Description

Configuration:

6-valve, packed and capillary columns, 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 heavy hydrocarbon separation up to C₁₂

Lower detection limits:

20 ppm for hydrocarbons, 100 ppm for permanent gases, 500 ppm for H₂S

Methods met:

ASTM D1945, ASTM D1946, ASTM D7833, UOP 539, Wasson-ECE 783D, W2484

Typical Chromatogram

Key Features and Benefits

• The heavy hydrocarbon 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)

Refinery Gas Literature (PDF)