| 窄脉冲电晕放电烟气脱硫产物粒径分析的实验研究 |
| 摘要点击 621 全文点击 1052 投稿时间：1998-03-16 |
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| 中文关键词 窄脉冲 粒径分析 脱硫产物 电子显微镜 气溶胶 |
| 英文关键词 narrow pulse size analysis desulphidation products electron microscope aerosol |
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| 中文摘要 |
| 为了便于脱硫产物的收集和应用,用沉降法采样,用电子显微镜对产物气溶胶进行粒径分析。实验在窄脉冲电晕放电装置上,模拟含硫烟气在工况条件下(气体流量2m3/h,反应器入口处SO2浓度2000ml/m3,SO2和NH3在通道中停留时间为5s以上,温度60℃、水蒸气体积比7.5%,相对湿度38.2%)进行。电子显微镜的观测结果显示,脱硫产物粉尘结构疏松,颗粒形状不规则。根据电镜照片的统计结果,得出产物粉尘的数目中位径NMD为0.40μm,几何标准偏差σ1=5.21;质量中位径MMD为2.82μm,几何标准偏差σ2=1.43. |
| 英文摘要 |
| In order to collect and apply desulphurized products,desulphurization experiment at the condition of operating mode(flux of flue gas 2m3/h,intial concentration of SO2 2000ml/m3,retaining time of SO2 and NH3 in simulator more than 5s,60℃,volume ratio of water vapor 7.5%,relative humidity 38.2%) by narrow pulse corona discharge simulator dealing with flue gas including SO2 was carried out.The deposit method was used to sample from product aerosol and electronmicroscope photo were used to observe and analyse shape and structure of products.The results showed that the product aerosol is irregular shape and loose structure,its number mediandiameter is 0.40 μm and geometric standard deviation is 5.21,mass mediandiameter is 2.82μm and geometric standard deviation is 1.43. |
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