DENITRATION CONTROL DEVICE

PROBLEM TO BE SOLVED: To provide a denitration control device improving a follow up ability to each axis NOX discharge amount set value. SOLUTION: A process amount of each axis is inputted and preserved in each data preserving part of a group denitration control device 2 in accordance with each axis. On the other hand, each axis discharge NOX amount set value is operated based on the discharge NOX amount set value as all of a power plant with the each axis NOX set value calculator 6. Then a present NOX discharge amount set value in every axis and the NOX discharge amount set value at some time in future are operated based on each axis process amount and the each axis discharge NOX amount set value and inputted to each controller 1 with a forecast optimizing calculating part 10.