Quality and Safety in Natural Gas

Moisture and hydrocarbon dew point are key parameters for determining the quality of natural gas as well as avoiding damage and reducing maintenance on plant equipment from upstream through to downstream processes. Controlling levels of H2S - a major contaminant in natural gas – protects equipment from corrosion damage both saving on maintenance costs and ensuring safety. In storage and transport, oxygen analysis provides an early warning of leaks and also ensures safety by avoiding explosive atmospheres.

Trace Moisture and Hydrocarbon Dew Point Measurements

For all natural gas transportation, storage and conditioning plant, a clear view of the process environment is essential. Our broad range of moisture and hydrocarbon dew point analyzers provide that insight.

  • Transmission gas quality at custody transfer
  • LNG re-gasification terminals
  • Network gas storage
  • Fuel gas conditioning for gas turbine power plants
  • CNG compression/dryer skids
  • Bio-methane injection to network

Oxygen and Hydrogen Sulphide Measurements

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

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