大气污染中化石燃料燃烧烟气脱硫脱硝方法研究

Study on flue gas desulfurization and denitrification method for fossil fuel combustion in air pollution

大气污染中化石燃料燃烧烟气脱硫脱硝成为我国一项严峻的任务。烟气脱硫脱硝技术的发展有效提升了我国大气污染治理成效,促进化石燃料的清洁高效利用。本文研究了基于介质阻挡放电低温等离子体的脱硫脱硝方法、基于改进活性碳吸附法的脱硫脱硝技术和基于二氧化氯湿法的溶液吸收法,并分析相关因素的影响。在等离子体法的脱硫脱硝试验中,分析了反应器两端电压、频率和湿度等对脱硫脱硝效率的影响;在活性碳吸附法的脱硫脱硝试验中,分析了环境温度、空塔速度和SO2浓度对脱硫脱硝效率的影响;在溶液吸收法的脱硫脱硝试验中,分析了SO2浓度、ClO2浓度、pH值、吸收液温度等因对脱硫脱硝效果的影响。

The desulfurization and denitrification of fossil fuel combustion flue gas in air pollution has become a serious task in China.The development of flue gas desulfurization and denitrification technology has effectively improved the effectiveness of air pollution control in China and promoted the clean and efficient use of fossil fuels.In this paper,the desulfurization and denitration method based on dielectric barrier discharge low temperature plas-ma,the desulfurization and denitration technology based on improved activated carbon adsorption method and the solution absorption method based on chlorine dioxide wet method are studied,and the influence of relevant factors is analyzed.In the desulfurization and denitrification test of plasma method,the effects of voltage,frequency and humidity on the desulfurization and denitration efficiency of the reactor were analyzed.In the desulfurization and denitrification test of activated carbon adsorption method,the ambient temperature,superficial velocity and sulfur dioxide were analyzed.The effect of concentration on the desulfurization and denitrification efficiency;in the desul-furization and denitrification test of the solution absorption method,the effects of SO2 concentration,ClO2 concentration,pH value,and absorption liquid temperature on the desulfurization and denitration effects were analyzed.