Solus Portable Stack Emissions
Protea's new portable emissions analyser allows for instrumental stack emissions testing for NH3 or HCl, together with H2O and O2. The Solus platform represents an extension of Protea's portable spectroscopic gas analysis equipment into laser based technology, allowing for highly selective, quick response and low range measurements of up to 3 gases in a cost-effective, re-configurable package.
Solus utilises the latest in Tunable Laser Diode Absorption Spectroscopy (TDLAS), together with the best in micromachining technology, to deliver a precisely controlled narrow wavelength that can be tuned over a small range. The narrow linewidth allows for selection of precise spectral absorbance in the NIR region, free from cross-interferences of other absorbing gases. For some tuning ranges, a number of gases can be measured by tuning a single laser diode e.g. NH3 and H2O.
The Solus portable extractive TDL gas analyser range has been developed to incorporate the advantages in technology, including:
- Very low cost of ownership and maintenance cost
- Portable gas analysis
- Low Level NH3 and HCl testing with lower cost than FTIR
- Simple to use, quick to deploy
- Embedded PC for touch-screen operation and data reporting
- Sampling system control with in-built heated line and heated probe control with alarms
For applications such as ammonia slip measurement in De-NOx processes via Selective Catalytic Reduction (SCR), the TDLAS technology within Solus NH3 provides quick, accurate ammonia measurements as well as moisture readings. With the optional zirconia oxygen sensor, Solus gas analyser provides three gas measurements for process control and emissions compliance.
HCl is a common gas measurement required from waste incineration directive (WID) processes such as municipal incinerators, medical waste incinerators and cement plants. For instrumental measurement of HCl, infra-red absorption spectroscopy is ideal. The Solus HCl gas analyser allows for accurate HCl measurements to be made down to sub-ppm measurements and the tuning range of the laser allows for moisture to also be monitored. If coupled with the optional zirconia O2 sensor, Solus provides three gas measurement (HCl/H2O/O2) ideal for compliance and regulatory emissions monitoring.
H2O and O2 Applications
Even for applications where the main pollutant (HCl or NH3) is not needed, the Solus portable analyser can be used to measure Water vapour (H2O %Vol) and Oxygen (O2 %Vol) in stack. This can be used to provide correction parameters for parallel dust or particulate measurements for example.