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Gas purification in SNCR denitrification systems

During gas purification, ammonia or a liquefied urea solution is injected directly behind the combustion chamber at a temperature of 900 to 1,100 °C through selective or catalytic reduction. This causes the nitrogen oxides to react with the ammonium compounds and turn into nitrogen and water. This reduces NOx emissions. The GM700 measures the ammonia slip at the combustion chamber outlet.

  • Following product families can be used
    Efficient process analysis – even under difficult conditions
    • High selectivity due to high spectral resolution
    • Short response times
    • No calibration required
    • No moving parts: minimal wear and tear
    • No gas sampling or conditioning required
    • Overpressure encapsulated design for ATEX Zone 2
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