Air Monitoring

  • New versatile and accurate laser gas analysers for the measurement of  NH3, HCl, CH4, CO2, (H2O)

New versatile and accurate laser gas analysers for the measurement of  NH3, HCl, CH4, CO2, (H2O)

May 28 2020 Read 820 Times

ETG Risorse e Technologia’s new gas analysers, the ETG 6900 P (Portable & Stationary), are a perfect, laser-based tool for the detection of NH3, HCl, CH4, CO2 in a variety of applications.  For example, the accurate measurement of unreacted ammonia (NH3), or ammonia slip, is of great concern for operators of  utility boiler systems which use urea - or ammonia-based selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR) processes for NOx control.

The ETG 6900 P is also ideal for the measurement of HCl in the incineration process. HCl is not only of importance for environmental issues, it can also cause significant damage to plant equipment. In the incineration process, the organic component is destroyed and chlorine is converted to HCl. HCI is a colourless and pungent smelling gas, which forms corrosive hydrochloric acid which is then a destructive presence within the atmospheric humidity. Typically affected plants include waste incinerators (municipal, hazardous and sewage sludge) and plants that use waste for co-incineration (e. g. cement plants, power plants or biomass plants).

Moreover, ETG’s new analyser effective for measuring CH4 and CO2 greenhouse gases, both of which are very important problem for planet life. The most important anthropogenic greenhouse gases (GHGs) are CH4 and CO2, and the CH4 global warming potential is 20–28 times of the CO2's one over a 100-year time frame.

ETG detects all of these compounds using TDLS enhanced technology for gas detection This operates whereby a 0.1 nm narrow bandwidth diode laser beam scans across an absorption band of the target gas, thus performing a high-resolution near-infrared absorption measurement.

The ETG 6900 series are highly reliable and ready-to-use devices for the measurement of gases such as NH3, HCl, CH4, CO2, (H2O). The high level of sensitivity and large dynamic range of the Tunable Diode Laser Spectrometry detection technology enables measurements from sub-ppm level to high percentages of concentration to be taken by the same analyser, without the need to adapt it to the very different environments.

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