Continuous emissions monitoring system. Power plants.

The on-site technology is characterized by wet measurement, real-time analysis, and no sample line. Among the disadvantages of poor accessibility, it is affected by particles or droplets, and is limited to measurements at low concentration.
The dry extractive has the disadvantage that it does not measure humidity, presents the possibility of acid condensation in applications with high concentrations of sulfur, also presents high maintenance, etc.
For the wet version, it has the advantage that it makes the measurement on a wet basis, and it is low maintenance, but it requires analyzer and sampling lines with heating, it presents moisture interference with NOx measurements, etc.
For the wet version, it has the advantage that it makes the measurement on a wet basis, and it is low maintenance, but it requires analyzer and sampling lines with heating, it presents moisture interference with NOx measurements, etc.
The dilution extractive allows wet-based measurement, requires low maintenance, does not require heated lines, etc; However, it requires correction for temperature and pressure changes, clean air for accurate measurements, and freeze protection.
The application of this technology for CEMS will depend on the process and plant conditions.