Analysis on the operation characteristics of the denitration facilities utilized in coal-fired power plants of a province in Southern China

Abstract

This paper firstly introduces the capacity,proprtion and type distribution for the denitration facilities utilized in a province in Southern China,and then analyzes the impact of the situation that the SCR exit operation in equipment fault and low smoke temperature under low load combined with the power plant de NOx equipment running status statistics.The data showed that the annealing time in low temperature for SCR denitrification facility account for 99.7% of the total exit operation time,which has become a major problem of SCR denitration facilities operation. Finally,in order to solve this problem,the suggestion for the improvement of heating surface transformation in the boiler is put forward to improve the load adaptability of SCR denitrification system.