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Liquefied natural gas (LNG)

Real-time measurement of contaminants down to trace levels

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

Moisture H2O in molecular sieve outlet

Gas moisture concentration at outlet of desiccant dryers to prevent freeze-up of liquefaction train. Measuring range starting from 0 to 2ppmv.

The traditional approach

  • Electrochemical cells are affected by trace hydrocarbons and other contaminants requiring frequent replacement.

  • Quartz crystal moisture balances are sensitive to contaminants and have high OPEX.

Our solution

SpectraSensors' non-contact laser is immune to damage and suffers no wet-up or dry-down delays even when the concentration changes dramatically.

Click for more detailed application notes on gas analysis solutions >>>

Typical analytes and measuring ranges

  • Analyte: H2S - Range: 0-10 ppmv

  • Analyte: H2O - Range: 0-2 to 0-10 ppmv

  • Analyte: CO2 - Range: 0-100 ppmv

The benefits:

  • Reliable trace-level (sub-ppm) measurement using differential spectroscopy.

  • Periodic self-validation with an integral, internal permeation tube to avoid downstream upset.

  • Exceptionally fast response in detecting moisture breakthrough.

Applications

  • Monitoring impurities in gas feed to the cold box ensures reliable liquefaction & on-time shipments.

Success stories

Contact

Endress+Hauser Ltd
Floats Road M23 9NF Manchester United Kingdom
Tel.: +44 161 286 5000
Fax: +44 161 998 1841
Send email www.uk.endress.com
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