Monitoring of odorants, VOCs and sulphur species in gas or liquid (LPG/LNG) matrices made easy

Chromatotec Group® is now entering the world of liquid sample analysis through the development of a simplified and enhanced liquid sampling system (XXvalveLPG) specifically designed to extract representative samples from the liquid phase.

The extracted liquid sample is vaporised and injected in continuous mode into the column of the auto-GC analyser with speciation of more than 16 sulphur compounds or 123 Volatile Organic Compounds (VOCs) according to the configuration type.

Sulphur compounds including H2S, mercaptans such as tert-butyl mercaptan (TBM), dimethyl sulphide (DMS) and/or Total Sulphur (TS) can be analysed in Liquid Propane Gas (LPG), Liquified Natural Gas (LNG) and other liquid samples such as crude oil, diesel, fuel, oil, water and condensates at very low concentration levels (ppb and/or ppm) in automatic routine mode.

This is very useful to control the effectiveness of the odorisation process of LPG as it is usually odorised with DMS and TBM to alert operators of any leakage. Chromatotec®’s liquid valve enables performing the analyses directly from the liquid phase to overcome the problem created by the lack of uniformity of the odorised liquid vapours caused by the different boiling points of the species when associated with auto-GC with a MEDOR® sulphur specific electrochemical detector, such as Chromatotec’s energyMEDOR® analyser.

The energyMEDOR is available with dedicated configuration for safe and hazardous areas: ATEX, IECEx, CSA and CSA international certifications for its application in refineries and petrochemical plants.