Controlling oxygen levels in natural gas
Other than the need to meet the regulatory requirements for gas quality; there are many reasons why oxygen is undesirable in natural gas:
- Oxygen combines with other chemical gases, especially H2S, to form acids
- Oxygen does not add to the BTU value of the gas and is not a benefit
- Oxygen degrades amine, which inhibits the process of removing carbon dioxide and H2S from the gas chemically
- Oxygen can degrade some mercaptans reducing the effectiveness of these odorants in the gas
- Oxygen accelerates corrosion in the mechanical components that come in contact with the gas
- Oxygen in sufficient quantities and with a heat source can cause explosions
Controlling oxygen levels in natural gas
Other than the need to meet the regulatory requirements for gas quality; there are many reasons why oxygen is undesirable in natural gas:
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| Application/Service | Measurement | Gas Stream | Analyzer Options |
| Oxygen measurement to protect personnel and equipment from explosive hazard due to methane resulting from decomposition of bio-ponds. | 0 to 5% O2 | N2 or CO2 | GPR-2800 AIS |
| Application/Service | Measurement | Gas Stream | Analyzer Options |
| Measuring O2 content for the protection of catalyst and regeneration beds | 0-10 ppm O2 | CH4, CO2, H2S |
GPR-1200 GPR-1100 Spot Checking GPR-3500 MO |
| Application/Service | Measurement | Gas Stream | Analyzer Options |
| Vacuum extraction techniques create the possibility of contamination by air that exceed contractual limits of O2. Monitoing the oxygen ensures early warning of possible breaches. | 0-100 ppm O2 | CH4, CO2, H2S H2S Sample System required |
GPR-1500 AIS Spot Checking GPR-1200 GPR-1100 |
