Abstract: Nitrogen oxides are one of the state total pollutant control objective in the 12th five-year period. The paper summarizes the development of denitrification industry of power plant in China. Based on the discharge status and control regulations of nitrogen oxides from thermal power plant，the current NOx control technology and profiles of domestic and foreign companies are presented，and the industry market characteristics and main existing problems are analyzed. Finally，China’s thermal power plant flue gas denitrification is at a high-speed development period. Denitrification is a huge market and the denitrification catalyst research should be intensified.

Key words: flue gas denitrification, NOx, power plant, market analysis

摘要： 氮氧化物是“十二五”期间国家污染物总量控制对象之一。本文详细论述火电厂烟气脱硝行业发展概况，在概述国内火电厂氮氧化物排放现状及控制法规的基础上，介绍了行业目前采用的主要技术及国内外脱硝公司概况，分析了行业的市场特点及存在的主要问题，指出了我国火电厂烟气脱硝目前处于高速发展时期，脱硝市场巨大，同时应加大脱硝催化剂的研究开发。

关键词: 烟气脱硝, 氮氧化物, 火电厂, 市场分析