The NGC8203 gas chromatograph

has a special column set to analyze

the components found in low Btu

“Landfill” gas.

Measurement made easy

Overview

The NGC8203 Gas chromatograph has a special

column set to analyze the components found in low

Btu “Landfill” gas. In addition, Totalflow has

constructed a sample system that provides a

pressurized sample to the NGC from the low

pressures typically found in landfill operations.

The low Btu gas is used primarily as fuel for turbines

to produce electricity in a “cogen” operation. In some

gases the landfill gas is blended with higher Btu

components such as propane to raise the quality of the

gas and allow it to be fed into a transmission pipeline.

The components typically found in landfill gas are:

• Methane 54%

• Carbon Dioxide 42%

• Nitrogen 3.1%

• Oxygen 0.8%

• Hydrogen Sulfide less than 1200 ppm

• Carbon Monoxide (indicating under ground combustion)

Stream Composition and ranges for a valid

application for the NGC C3+ Analysis:

• Component Mol%

• Nitrogen 0.1-100

• Carbon Dioxide 0.1-100

• Methane 0.05-100

• Ethane 0.1-100

• Propane 0.05-100

• Hydrogen Sulfide 0.01-0.12

• Oxygen 0.2-20

• Carbon Monoxide 0.2 -100

• Hydrogen 0.1-20

• Ethylene 0.1-100