Applications

Analyzer Description

Configuration:

4-valves, 5-capillary columns, methanizer, TCD, FID, FID, LTM Series II

Sample type:

Natural gas

Compounds Separated:

Methane, ethylene, ethane/acetylene composite, propylene, propane, isobutane, n-butane, neopentane, isopentane, n-pentane, 2,2-dimethylbutane, 2-methylpentane/2,3-dimethylbutane/cyclopentane composite, 3-methylpentane, n-hexane, benzene, cyclohexane, n-heptane, toluene, n-octane, ethylbenzene, m-xylene/p-xylene composite, n-nonane, o-xylene

Hydrogen, helium, oxygen, nitrogen, carbon dioxide, carbon monoxide

Concentration Range:

20 ppm to 5,000 ppm for helium

20 ppm to 5,000 ppm for hydrogen

70 ppm to 50,000 ppm for oxygen

70 ppm to 400,000 ppm for nitrogen

40 mol% to 100 mol% for methane

10 ppm to 10,000 ppm for carbon monoxide

10 ppm to 100,000 ppm for carbon dioxide

10 ppm to 5,000 ppm for acetylene, ethylene, propylene

20 ppm to 150,000 ppm for ethane

10 ppm to 50,000 ppm for propane

1 ppm to 10,000 ppm for n-butane, isobutane

1 ppm to 5,000 ppm for all remaining components

Methods met:

ISO 6974-6, Wasson-ECE W4151

Typical Chromatogram

Key Features and Benefits

• ISO 6974-6:2002 recommends using two separate gas chromatographs in series, Wasson-ECE Instrumentation performs the analysis on a single gas chromatograph using three unique thermal zones.
• On-board regulators ensure that flow is consistent.
• Argon and nitrogen carrier gases are used.