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Hydrogen Sulfide in an LNG Amine Unit

 
The SpectraSensors TDL analyzer is the ideal solution for measuring hydrogen sulfide in an LNG amine unit. There are no cylinder gases or Lead Acetate tapes to replace on a routine basis, so the analyzer is very low maintenance and has a low cost of ownership over the life of the analyzer.
 
The high resolution that is inherent to TDL technology eliminates errors due to interferences that have hampered other spectroscopic approaches. Only SpectraSensors employs Differential Spectroscopy to cope with the changes in background spectrum of the sample caused by changing operating conditions and feedstocks.
 
The sample gas is passed through a nanoparticle scrubber to remove H2S, and the spectrum of the H2S-free sample is measured. The scrubber is then bypassed to measure the raw sample with H2S, and the H2S is measured by spectral subtraction.
 
As the H2S-free background spectrum can be applied repeatedly to the sample, the scrubber is only used as needed, controlled by logic in the electronic controller. The scrubber lifetime in normal service is a minimum of 18 months to 3 years, so consumable costs and maintenance are low. Tunable Diode Laser technology means the analysis is fast; response times of less than a minute are readily achievable.
 
                                          Learn More - Application Note 44302
                                         Review - CSA Typical Drawing
                                         Review - ATEX Typical Drawing
 
 

Products

Model Description  Certification
SpectraSensors SS2100 Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
CSA Class I Division 2
SS2100a
SpectraSensors SS2100a Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
ATEX Zone 2
SpectraSensors SS2100i-1 Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
ATEX and IECEx Zone 1
SpectraSensors SS2100i-2 Process Gas Analyzers are exceptionally reliable for measuring trace gas components using Tunable Laser Diode (TDL) technology.
 
ATEX, IECEx and GOST-R Zone 1