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试验室研究表明流化床煤燃烧过程中确有大量的N2O生成,且床温、过剩氧量、煤种及粒径、添加石灰石等对N2O排放量有较大影响;NH3的氧化反应、NO在煤焦表面的还原反应以及煤焦的直接燃烧都产生N2O,但生成量比较小,流化床煤燃烧中产生的N2O主要来自挥发分中HCN的均相反应;N2O在高温下迅速分解,且H2O、煤焦、床料及备种氧化物对N2O的分解都有不同程度的催化作用;在脉冲电晕放电脱硝过程中有一定量的N2O产生,NOx初始浓度、停留时间、脉冲电压及功率对N2O生成量都有影响.
Laboratory studies show that there is indeed a large amount of N2O generated during the combustion of fluidized bed coal bed, and the bed temperature, excess oxygen, coal type and particle size, limestone and other N2O emissions have a greater impact; NH3 oxidation reaction, NO The reduction reaction on the coal char surface and the direct combustion of coal char produce N2O, but the formation is relatively small. The N2O generated from the combustion of fluidized bed coal comes mainly from the homogeneous reaction of HCN in the volatiles; N2O rapidly decomposes at high temperature, In addition, H2O, coal charcoal, bed materials and prepared oxides all catalyze the decomposition of N2O to a certain extent. During the denitration process of pulse corona discharge, a certain amount of N2O production, initial NOx concentration, residence time, impulse voltage and power pair N2O production have an impact.