Reliable and robust gas analysis solutions to continuously ensure pipeline safety
Monitoring contaminants, e.g. H2S, H2O, to protect pipelines from corrosion and blockage by hydrate formation and to assure quality specifications for custody transfer
Moisture H2O in natural gas pipelines
Low moisture content is critical to meet quality specifications and to protect pipelines from corrosion. Measuring range starting from 0 to 100 ppmv.
High levels of solid and liquid contaminants and varying concentrations (glycol, methanol, compressor oil, sulfur compounds) challenge measurements of moisture
Sensors relying on the absorption onto sensitive surfaces have wet-up or dry-down delays
Contaminants may destroy some moisture sensors
Cross-interference affects moisture readings
Al2O3 sensors are slow and subject to other components in natural gas
SpectraSensors' Tunable Diode Laser – Absorption Spectroscopy (TDLAS): The rugged solution used in natural gas pipelines with very little maintenance, no interference, and with no detrimental effects from glycol, methanol, amines, H2S, moisture slugs, etc.
Typical analytes and measuring ranges
Analyte: H2S - Range: 0-10 to 0-5000 ppmv
Analyte: H2O - Range: 0-100 to 0-2500 ppmv
Analyte: CO2 - Range: 0-5 to 0-20%