Gas processing

Non-contact and accurate measuring of natural gas contaminants

Monitoring contaminants is critical for process optimization and gas quality.

Hydrogen sulfide H₂S in amine scrubber outlet

One of the first steps in a gas plant is the reduction of acid gas components. Measuring ranges starting from 0 to 10 ppm_v for H₂S and from 0 to 10 ppm_v for H₂O.

Traditional approach

Lead acetate tape analyzers work but have high maintenance requirements to replace and dispose of the tapes in an environmentally safe manner
On-line gas chromatograph take 3 – 6 minutes between measurement updates and do not sense rapid changes. OPEX are high due to consumption of carrier gas and flame fuel cylinder gases
Broadband UV light sources and narrow band pass filters are prone to interferences from changing background concentration.

Our solution

High resolution SpectraSensors' TDLAS technology eliminates errors due to interferences encountered with other spectroscopic techniques.

Find detailed application notes on gas analysis solutions

Typical analytes and measuring ranges

Analyte: H₂S - Range: 0-10 to 0-5000 ppm_v
Analyte: H₂O - Range: 0-10 ppm_v
Analyte: CO₂ - Range: 0-100 ppm_v to 0-5%

Applications

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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$Measuring impurities in C2 streams fraction to prevent C2 splitter contamination$ $Measuring impurities in C2 streams fraction to prevent C2 splitter contamination$

Petrochemicals / olefins / 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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Refinery

Measuring composition and impurities in refinery gases to optimize process efficiency and hydrogen quality
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Syngas-related industries

Measuring composition for optimizing syngas production, process intermediates and end products
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F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
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F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable