Synspec Alpha 116 Methane/TNMHC Analyser

Synspec Alpha 116 Methane/TNMHC Analyser

An analyser for high-range stack measurements of methane and total non-methane hydrocarbons (TNMHC) up to 1000pm

  • High range detection limits of up to 1000ppm for accurate monitoring of methane and other hydrocarbons in stack emissions
  • Comprehensive hydrocarbon analysis, including hard-to-detect compounds such as oxygenated hydrocarbons
  • True gas chromatographic separation prevents potential issues associated with catalytic conversion methods used in other techniques
  • CE approval for EMC conformity, ensuring compliance with European standards

How it works

The Alpha 116 Gas Chromatograph (GC) is designed for continuous stack monitoring of methane and other hydrocarbons with high-range detection limits, up to 1000 ppm.

The Alpha 116 GC uses a method that not only measures the concentrations of the greenhouse gas methane but simultaneously determines the sum of all other hydrocarbons, including ones that are typically difficult to detect such as oxygenated hydrocarbons.This analytical approach ensures precise measurement of total air pollution.

Integral to this approach is a FID detector, which generates two distinct peaks: methane and total non-methane hydrocarbons (TNMHC). The gas sample goes through a specialised process within a layered column, where methane is passed through and injected into the detector before the column is ‘back flushed’ and all of the other hydrocarbons pass to the detector. This results in the two peaks generated by the FID. Using true gas chromatographic separation prevents potential problems with catalytic conversion used in other indirect measurements.

Each gas analyser is equipped with all of the essential components: FID detector, computer, colour touchscreen, and GC software. The Alpha 116 model holds a CE approval for EMC conformity.

For optimal running of the analyser, it it is important to have a good source of Methane-free zero air. A zero air generator must run with a catalytic methane scrubber, working at a temperature of at least 400 oC. Alternatively, nitrogen can be used as carrier gas using zero air only for the detector air supply.

Synspec produces 5 different versions of Methane/TNMHC analysers:

  • Synspec Alpha 115: Mid range for ambient air measurements in cities or near industries
  • Synspec Alpha 116: High range for stack measurements up to 1000 ppm
  • Synspec Delta 116 CEMS: High range for stack measurements according to US EPA 25A
  • Synspec GC955 114: Low range for background measurement
  • Synspec GC955 118: Fast mid range ambient air measurements in cities or near industries

Servicing

Servicing information

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