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Siemens - Model 40 CFR 60 -Continuous Emissions Monitoring System (CEMS)
Based on the Clean Air Act as well as local regulations, increasingly stringent environmental regulations require the overall reduction of Sulfur emissions. Consequently, it is necessary to monitor and control specific sulfur constituents and total sulfur content in products that are combusted and emitted. Siemens on-line MAXUM Process Gas Chromatographs and Gas Analyzers are utilized for Total Sulfur Monitoring and H2S Monitoring in Fuel Gas.
The system consists of two major components: the analysis rack and the sample probe box. The analysis rack contains Siemens analyzers, a Siemens system controller and a Sample Conditioning System. The probe box is mounted at the sample extraction point, usually on a stack or duct. The probe box is designed to extract and filter the hot wet sample from the stack or duct. The probe box also provides for calibration through the probe and blowback of probe filter. The filtered sample is then drawn to the analysis rack via a pump through a heated line for water removal by a chiller and predefined quantification by the analyzers. The system is designed to measure pre-defined ranges of nitrogen oxides, carbon monoxide and oxygen.