1st Presentation EURODEUR 2007 - Marseille France

- Odors analysis by online gas chromatography

The sulphur compounds such as hydrogen sulphide or mercaptans are present in the industrial environment and generate not only smells to be treated in an environmental purpose but also represent an important risk of toxicity.

We find them for example in the water in fermentation and consequently throughout the process of waste water in treatment plant.

In that case a quantitative analysis and a specific separation are realized by on-line and non-stop gas chromatography.

The concerned analyzer is the AirMEDOR equipped with an electrochemical cell dedicated to the sulphurs analyses.

The natural gas odorization is another example of sulfur compounds analysis.
In that case H2S, mercaptans and THT (Tetra Hydro Thiophène) are controlled and quantified within a standard cycle of 20 minutes.

For security reasons a permanent follow-up of the stability of the analyser is realized by an intern standard (DMS: Di-Methyl Sulfur) analysed 3 times every 24 hours for instance.

Thus each analytical sequence of the energyMEDOR is automatically validated.
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