A study was conducted for the optimum application of SNCR with ammonia to a municipal solid waste incinerator in Taejon city. The major influential factors are temperature, kinds of reducing agents. NSR(normalized stoichiometric ratio) and the injecti...
A study was conducted for the optimum application of SNCR with ammonia to a municipal solid waste incinerator in Taejon city. The major influential factors are temperature, kinds of reducing agents. NSR(normalized stoichiometric ratio) and the injection point of reducing agents, on the condition that the reducing agent was limited only to ammonia in this study.
The result of this study was as follows:
Optimum NSR for ammonia is 1.7. Optimum temperature is 1000℃. Middle stage is better than Upper stage for injection point of reducing agents.
The most optimum operation condition of SNCR for municipal solid waste incinerator was as follows: Reducing efficiency can be reached to 79%, when we use ammonia as a reducing agent at middle stage injection, NSR is 1.7 and operating temperature is 1000℃.
Ammonia slip phenomenon was not founded until NSR is 2.2. When we use 25% ammonia solution at optimum NSR 1.7, the optimum injection quantity is 28ℓ/hr