燃煤电站多污染物脱除过程的耦合机制研究

项目名称： 燃煤电站多污染物脱除过程的耦合机制研究

项目编号： No.51476056

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 能源与动力工程

项目作者： 程伟良

作者单位： 华北电力大学

项目金额： 80万元

中文摘要： 为节约能源及保护环境，国家已对常规燃煤电厂都实施了脱硫、脱硝、脱汞及除尘的排放控制要求，目前面临各污染物处理时的高效及协同优化问题，其中在各脱除环节中的耦合机制问题是亟待加以研究解决的。本项目提出对实际燃煤电厂烟气中脱硝、脱硫及除尘的关键影响因素及耦合机制研究,并探讨含这些污染物的飞灰细颗粒在烟气流动过程中的迁移转化规律。研究吸收吸附的效果及各因素之间的相互影响，进而确定各关键因素及反应条件，研究燃煤机组的典型特征运行方式下的多污染物反应机理和耦合作用机制，采用可调关键参数进行实际电厂试验，并完成数据分析及化验表征，以便通过理论建模分析来研究污染物脱除的耦合及协同效应，这将为脱除烟气中Hg/SO2/NOx/PM的综合优化排放技术应用奠定基础。

中文关键词： 燃煤电站；排放特性；污染物控制；系统分析；耦合机制

英文摘要： In order to save energy and protect environment, the optimization control technology about pollutants on flue gas in coal-fired power plant, has an important significance for improving combustion characteristics of coal and low pollutant emission. In order to comprehensively implement the national desulfurization and denitration and mercury emission control requirements, the adjustment method and optimization strategy are put forward on influencing factors about mercury indirect removal and desulfurization and denitrification process, and it is explored how the fine PM2.5 particles containing the contaminant flow and remove in the flue gas.The key theoretical questions of denitration catalyst surface and desulfurization are studied in interrelationships of the factors. The various factors about their absorption situation can be obtained, which determine the key factors and reaction conditions. The reaction mechanism and the coupling effect of several feature operation modes in coal-fired plants are obtained. Based on the proposed optimization theory, the control operation strategy of pollutants can be established by experiments through actual power plants.On this basis, the optimized emission technological application of Hg/SO2/NOx/PM integration in flue gas in different conditions is developed throgh the coupling and synergism of multi- pollutant.

英文关键词： coal-fired plant;discharge character;emission control;systematic analysis;coupling mechanism