Siloxanes in Landfill/Sewage Gases

Municipal waste, landfill, sewage, sludge etc often carry silicon containing materials from sources like washing agents, skin care products or waterproofing materials. Thus and as a consequence of anaerobic digestion or fermentation siloxanes are formed within the combustion gas which is used more and more as an alternative energy source.

When the gas surpasses a certain tolerable amount of siloxanes resp. 'total silicon' (Si) and is combusted to generate power e.g. in gas turbines of block heat power plants siloxanes are converted to silicium dioxide (SiO₂), which deposits on combustion parts and/or exhausts of the engine. Corrosion and system break downs are the consequences. 

The GC-IMS-SILOX precisely quantifies the individual siloxanes L2-L5 same as D3-D5 at a range of 0.01-5 mg/m³, calculates 'total silicon' and 'total silica' and by this allows to take a reliable decision on-site. Besides a flexible spot-to-spot measurement using its one-klick operation it even enables a continuous and remote online monitoring to test for the pipe gas same as a filter breakthrough while sampling and quantifying the siloxanes automatically in user defined intervals. Acquired data are automatically processed, measurement results interpreted, stored on the integrated compact flash card and transferred to a connected control center via analogue output.