Abstract
Gaseous Ammonia treating equipment has been developed in order to keep the good environmental condition of enclosed sea area (i.e., Tokyo Bay, Ise Bay, etc.), because the Ministry of Environment introduced new regulation concerning the amount of nitrogen compounds discharged from sources of drainage, started from April, 2004. We had formerly washed inside of ammonia tank in thermal power station under performing a scheduled maintenance, so that the drainage containing ammonia with low concentration had discharged. However, our new equipment can be achieved non-drainage, because the equipment can directly decompose gaseous ammonia in ammonia tank with new redox catalyst. In addition, the process shows the low concentration of gaseous ammonia less than 5 ppm in flue gas from catalyzer, and the low concentration of nitrogen oxide less than 10 ppm. Furthermore, we have also succeeded in minimization of our equipment by adopting the new catalyst.
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