• Determining Natural Sulphur Content with Odor On-line

Measurement and Testing

Determining Natural Sulphur Content with Odor On-line

Jul 28 2008

Axel Semrau`s (Germany) Odor on-line is a fully-automatic on-line measuring system for the quantifying the content of natural sulphur compounds and odorants in natural and liquid gas.
The measuring system consists of a gas chromatograph with a packed separating column and a specific electrochemical detector.
The electrochemical detector reacts selectively to oxidizable, sulphurous compounds such as hydrogen sulphide, tetrahydrothiophene, sulphides and mercaptanes. The other natural gas components do not generate a measuring signal. Due to the high selectivity of the detector the device only requires relatively low chromatographic separating capacity.
Odor on-line can therefore be operated with dry, oil-free compressed air, so that costs for expensive service gases are avoided. The measuring technique is compliant with DIN 51855/7 and ISO 19739 (ISO 6326T2).
The system offers optimal stability for application in industrial environments. Three outputs for remote transmission of the measurement readings and an alarm relay for minimum and maximum concentration are integrated as standard. Automatic restart following power failure is ensured. A PC is used for control and analysis.

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