On the Mercury Trail

Mercury is subject to strict monitoring in the flue gas of incineration plants and cement kilns. Complying with emission standards in the μg range is obligatory. Therefore, measuring devices must be extremely sensitive and ultra precise. Featuring patented direct measurement, the MERCEM300Z from SICK (Germany) is a high-performance mercury analyser that delivers reliable measurement values of both elemental and chemically bound Hg in gases.

A number of mercury analysers are available on the market, but none can do what the MERCEM300Z can: measure mercury in flue gases quickly and reliably without external conversion – down to the smallest certified measuring range from 0 to 10 μg/m3. This constitutes concentration variable significantly below the emission concentrations of SO2, NOX, or dust common otherwise. MERCEM300Z is tested for suitability according to EN 15267.

Distinguished with patented direct measurement
The MERCEM300Z combines thermal conversion at high temperatures and the Zeeman AAS analysis in a single, easy-to-use analyser. Hg measurement directly in the hot cell is patented and licensed exclusively for the MERCEM300Z from SICK. The direct measurement detects even the minutest concentrations of Hg directly in the hot converter. No chemical conversion, no particulate converter, no gas cooling that may distort the measurement result – and due to the Zeeman AAS analysis, the measurement is unaffected by interfering components in the gas stream.

Overall, thermal conversion at temperatures of about 1,000°C and detection of Hg directly after conversion within the undiluted sample provide the most accurate results while requiring the least expense and effort.