H₂S Continuous Emission Monitoring Systems

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Supply and commissioning of an H₂S continuous emission monitoring (CEMS) infrastructure consisting of 8 extractive and 3 in-situ measurement systems.

Extractive and in-situ measurement

H₂S emissions can be measured in two basic ways. An extractive system draws the sample from the line, conditions it and carries it to the analyzer. An in-situ system measures directly on the duct, for example by laser absorption.

What determines the choice

  • Gas temperature, moisture and dust load
  • Measuring range and expected response time
  • Risk of H₂S loss in the sample line
  • Maintenance access and hazardous area requirements

For more on continuous monitoring, see CEMS.

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