燃煤电厂烟气脱硝的政策要求与建议

Policy requirements and suggestions for the flue gas de-NO_x in coal-fired thermal power plants

我国法规与标准对燃煤电厂NOx的控制主要是以低NOx燃烧为控制原则,与发达国家初期控制NOx的政策类同,同时炉内低NOx燃烧技术也是发达国家后期进一步控制NOx加装烟气脱硝的重要前置控制。但近年来我国新审批的燃煤电厂中有不少被要求同步安装烟气脱硝装置,具有一定的随意性。从国外烟气脱硝装置的实际运行情况、我国环境空气质量标准与世界卫生组织的差异等方面阐述了燃煤电厂的烟气脱硝问题,建议尽快修订环境空气质量标准、火电厂大气污染物排放标准以及燃煤电厂需同步安装烟气脱硝的区域。

The main control principle for NOx in a coal-fired power plant is low NOx combustion up to now in China, which is similar to that in the early stage in developed countries, Low NOx combustion inside boiler is also an important front control for the further control of NO~ in developed countries, In recent years partial new-approved coal-fired power plants were required to install flue gas de-NOx equipment. The flue gas de-NOx problem in coal-fired power plants was discussed from the following aspects such as the practical operation of foreign de-NOx equipment, the difference between existing ambient air quality standards in China and those specified by the WHO. It was recommended to revise the ambient air quality standards, the pollutant emission, standards and the simultaneous installation areas of flue gas de-NOx in coal-fired thermal power plants.