| SCR烟气脱硝过程中SO_2和SO_3的测量 | |
| 吴宁 ; 宋蔷 ; 李水清 ; 姚强 ; Wu Ning ; Song Qiang ; Li Shuiqing ; Yao Qiang | |
| 2010-06-08 ; 2010-06-08 | |
| 关键词 | SCR 烟气脱硝 SO_2 SO_3 SCR,flue gas denitrification,SO_2,SO_3 X701.3 |
| 其他题名 | MEASUREMENT OF SO_2 AND SO_3 IN SCR FLUE GAS DENITRIFICATION |
| 中文摘要 | 建立了同时测量烟气中SO2和SO3浓度的测量方法.采用三级收集系统对气体中的SOx进行收集,并采用离子色谱仪对吸收液中的SO32-和SO42-进行测量,以确定待测气体中SO2和SO3的浓度.该方法测量SO2和SO3的误差分别为1.2%和29.6%.采用该方法对自行制备的V2O5/WO3/TiO2催化剂催化还原NO和催化氧化SO2的情况进行了研究.实验结果表明,脱硝率和SO2氧化率均随反应温度升高而增加.综合考虑脱硝和SO2氧化问题,最佳的烟气脱硝温度区间为310℃~400℃.烟气中的NH3和NO与SO2在催化剂表面竞争吸附,降低了SO2氧化率.; A method to measure the concentrations of SO_2 and SO_3 in flue gas simultaneously was built. Three collection stages were designed to collect SO_x in gas and the amount of SO_3~ 2- and SO_4~ 2- formed in the absorbent solution was analyzed by ion chromatography to determine the the concentrations of SO_2 and SO_3 in gas. The measurement errors for SO_2 and SO_3 were 1.2% and 29.6% respectively.Catalytic reduction of NO and catalytic oxidation of SO_2 with self-prepared V_2O_5/WO_3/TiO_2 catalyst were studied by this method. The experimental results showed that denitrification rate and oxidation rate of SO_2 increased with the increase in reaction temperature.The optimum reaction temperature for flue gas denitrification ranged in 310 ℃-400 ℃, with the consideration of both denitrification and SO_2 oxidation.NH_3 and NO in flue gas competed with SO_2 for adsorption on the surface of catalyst,and decreased the oxidation rate of SO_2.; 国家“973”重点基础研究资助项目(2002CB211606) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/50483]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 吴宁,宋蔷,李水清,等. SCR烟气脱硝过程中SO_2和SO_3的测量[J],2010, 2010. |
| APA | 吴宁.,宋蔷.,李水清.,姚强.,Wu Ning.,...&Yao Qiang.(2010).SCR烟气脱硝过程中SO_2和SO_3的测量.. |
| MLA | 吴宁,et al."SCR烟气脱硝过程中SO_2和SO_3的测量".(2010). |
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