Optimization and reconstruction technology of SCR flue gas denitrification ultra low emission in coal fired power plant

2017 2nd International Seminar on Advances in Materials Science and Engineering

Li, Xinhao^1

School of Engineering, University of Edinburgh, Edinburgh

EH8 9YL, United Kingdom^1

关键词: Calculation software;    Coal-fired power plant;    Denitrification efficiencies;    Environmental problems;    Reliable operation;    SCR denitrifications;    Simple structures;    Thermal power plants;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012111/pdf
DOI  :  10.1088/1757-899X/231/1/012111

来源: IOP

【 摘 要 】

In recent decades, nitrogen oxides (NOx) emissions from thermal power plant increased year by year in China. A large number of nitrogen oxides (NOx) emissions caused by the growing environmental problems have been widely attached importance to people. SCR denitrification technology has the advantages of cleanliness and high efficiency. At present, it has been the major technology to control NOx emission because of its high denitrification efficiency, reliable operation, no by-products and simple structure of the device. The denitrification efficiency can be stabilized at 70%. In this paper, three different denitrification methods are compared. The factors influencing the denitrification efficiency, the system arrangement and the key factors of the denitrification system are discussed in detail. And the numerical simulation of how to use this calculation software in the SCR reactor flue, baffle, reactor, spray ammonia grille and spray ammonia, mixer, etc. are reviewed, as well as the effect of system operation control on the deoxidation performance.