Refinery gases

Gas analytical solution with integrated autovalidation for process quality monitoring in refineries

Measuring composition and impurities in refinery gases to optimise process efficiency and hydrogen quality.

H₂S in refinery fuel gas

Refinery fuel gas is a collection of light hydrocarbon gases. To meet environmental regulations, the concentration of H₂S in fuel gas is monitored before burning instead of SO₂ after combustion. Typical range: 0-300ppm.

The traditional approach

Online gas chromatography (GC) has high consumption of carrier gases and requires frequent maintenance and calibration.
Lead-acetate tape analysers use consumables that require maintenance and special handling to dispose of tape that is classified a hazardous waste.

Our solution

Accurate measurements by SpectraSensors' unique Differential TDLAS Spectroscopy helps address changing fuel gas composition with automated 2-point daily validation.

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Typical analytes and measuring ranges

Analyte: H₂S - Range: 0-10 to 0-300ppm_v
Analyte: H₂O - Range: 0-10 to 0-500ppm_v

Applications

Gas processing

Monitoring contaminants is critical for process optimisation and gas quality. SpectraSensors' TDL technology eliminates errors due to interferences associated with other spectroscopic approaches.
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Liquefied natural gas (LNG)

Monitoring impurities in gas feed to the cold box to ensure reliable liquefaction and on-time shipments
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Natural gas

Monitoring contaminants, e.g. H₂S, H₂O, to protect pipelines from corrosion and blockage by hydrate formation and to assure quality specifications for custody transfer.
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Petrochemicals, olefins and ethylene

Measuring impurities in C₂ streams fraction to prevent C₂ splitter contamination and prevent going to flare due to not meeting ethylene product specifications.
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Syngas-related industries

Measuring composition for optimising syngas production, process intermediates and end products.
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