Oxygen measurements in natural gas: new application note

A new application note is available to download from Michell Instruments’ website: Oxygen Measurement in Natural Gas. There are many reasons why oxygen is undesirable in natural gas, on top of meeting the regulatory requirements for purity: • Oxygen combines with other chemical gases, especially H2S, to form acids. • Oxygen does not add to the heating value of the gas and is not of 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. The application note discusses the various oxygen measurement methods available, along with their benefits and disadvantages.

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