| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device for simultaneously analyzing NOX and NH3 in the exhaust gas within a flue of an electric power facility, for example. SOLUTION: A device for simultaneously measuring nitrogen oxide(NOX) and ammonia(NH3) in an exhaust gas 11 comprises first and second measurement lines 12A and 12B for measuring the exhaust gas 11 blanched in two lines, an ammonia oxidizing catalyst 13 for oxidizing ammonia, a first NOX gauge 14 which is provided in the lower stream of the ammonia oxidizing catalyst 13 and measures the concentration of NOX, a first denitration catalyst 15 which is provided on the second measurement line 12B and denitrates NOX, a second denitration catalyst 16 which denitrates NOX in the gas wherein the exhaust gasses of the first and second measurement lines 12A and 12B are merged, a second NOX gauge 17 which is provided in the lower stream of the second denitration catalyst 16 and measures the concentration of NOX, and a calculator 18 which receives the sensor output from the first NOX gauge 14 and the second NOX gauge 17 for calculating/measuring the concentration of NOX and NH3.
|
