Methane (CH4) Analyzer
Methane Gas Analyzer Models
Nova uses infared methodology for CH4 gas measurement. Our analyzers can be supplied with a built-in sample pump or a pressure regulator to suit most applications. Portable and permanent continuous models are available. Many of the analyzers shown here also measure other gases besides CH4.
Nova Analytical offers the following methane gas analyzer models:
Methane Gas Analysis
Methane is a gas of interest in many analytical applications. Non-dispersive infrared (NDIR) analyzers can be used to measure CH4 gas because it is an excellent absorber of infrared energy. Methane in industry is frequently measured in percent (%) ranges, but parts per million (ppm) measurement is also possible with IR detectors.
Nova equipment measures CH4 using an IR detector that also ‘sees’ other hydrocarbons and reports them as methane. This is usually not a problem in cases where the non-methane hydrocarbons are not present in significant amounts. If non-methane hydrocarbons are expected to be an issue, we can offer a methane-specific detector which ‘sees’ only methane in a background of mixed hydrocarbons.
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What Is Methane?
Methane (CH4) is the simplest alkane with only one carbon and four hydrogens in its molecule. It is the main component of natural gas and is attractive fuel source due to its abundance. It exists in the earth’s atmosphere at an approximate concentration of 1800ppb (parts per billion).
Methane is a greenhouse gas because it inhibits outward thermal radiation from the earth – in other words, it traps heat. Methane is in fact a more potent greenhouse gas than carbon dioxide (CO2) is. For this reason, unused methane is usually flared to convert it to CO2. However, because CH4 is a combustible gas, it is generally recovered as an energy source.
Methane is mainly produced by the biological process of methanogenesis which is one of the metabolic stages of microorganisms on organic matter.