Continuous emissions monitoring for carbon capture and storage
The process control of a CO2 capture plant needs good and reliable detection of gas phase NH3. Measuring NH3 is a challenge due to the corrosive environment and high concentrations of NH3. Several places in the process needs to be monitored and to transport the sample is difficult. A large dynamic range is needed as the NH3 concentration can vary between 15% volume and a few mg/m3.