| http://www.w3.org/ns/prov#value | - The present invention generally relates to improvements in methods by which coal fired boilers, especially boilers in existing electric power generation plants, can operate to economically reduce the emissions of nitrogen oxides (NOx) by means of Selective Non-Catalytic Reduction (SNCR), which is effected by injection of urea or ammonia-water droplets of varying size into a high temperature, post
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