GAS Analysis System / CEMS

GAS was historically used as a system to monitor flue gas for Oxygen (O₂), Carbon Monoxide (CO) and Carbon Dioxide (CO₂), Sulfur Dioxide (SO₂), Oxides of nitrogen (NOx), to provide information for combustion control in 2 industrial norms. They are currently used as a means to comply with local air emission standards. Facilities employ the use of GAS to continuously collect records and report the required emissions data.

The standard GA system consists of a sample probe, filter, sample line, and gas conditioning system including a sample gas pump, sample gas cooler, calibration gas system, and a series of gas analyzers that reflect the parameters being monitored. Typically monitored emissions include sulfur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen chloride, and oxygen.