Standard Refinery Gas Analysis (RGA) With Trace Carbon Oxide Detection

Analyzer Description

Configuration:

6-valve, packed and capillary columns, methanizer, TCD / TCD / FID

Sample type:

Natural gas, sour gas, other refinery gases

Components separated:

C₁ - C₇, hydrogen, carbon dioxide, hydrogen sulfide, oxygen, nitrogen, carbon monoxide

Lower detection limits:

FID / TCD: 20 ppm for hydrocarbons, 100 ppm for permanent gases, 500 ppm for H₂S

Lower detection limits:

Methanizer / FID: 1 ppm for methane, carbon monoxide, and carbon dioxide

Methods met:

ASTM D1945, ASTM D1946, ASTM D7833, UOP 539, ASTM D2504 Appendix X1, Wasson-ECE 383-MET, 383D-MET

Typical Chromatogram

Refinery Gas Chromatogram (FID)Refinery Gas Chromatogram (TCD)Refinery Gas Chromatogram (Methanizer / FID)

Key Features and Benefits

  • Liquid valves can be added for LPG analysis
  • The backflush peak can be tailored to specific samples (e.g. C₆₊ or C₈₊ backflush composite peaks)
  • Can be converted to all capillary columns to achieve better resolution and detection limits
  • A fourth FID can be added for the simultaneous analysis of trace carbon oxides
Corporate Headquarters

Wasson-ECE Instrumentation

101 Rome Ct., Fort Collins, Colorado USA 80524

Phone: +1 (970) 221-9179

Fax: +1 (970) 221-9364

© 2026. All Rights Reserved.

When you can't afford to be wrong. TM