| 回收法氧化镁湿法烟气脱硫机理和工艺基础研究 | |
| 崔可 ; 柴明 ; 徐康富 ; 马永亮 ; CUI Ke ; CHAI Ming ; XU Kang-fu ; MA Yong-liang | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 氧化镁 烟气脱硫 回收工艺 吸收液 magnesium oxide flue gas desulphurization recovery technology absorption solution X701.3 |
| 其他题名 | Mechanism and Technology of Recovery Flue Gas Desulphurization with Magnesium Oxide |
| 中文摘要 | 以氧化镁浆液作为吸收液,对空气与SO2混合气的鼓泡吸收做了全过程的实验观察.测试分析表明,在高效而稳定的脱硫过程中,吸收液的酸化是由HSO3-所致;酸化趋势与SO2水解规律相一致,由初期高pH值下SO32-为主的缓变到低pH值下HSO3-为主的剧变;吸收液温度对脱硫率的影响不敏感;MgSO3相对高的溶解度和易氧化性及MgSO4良好的水溶性保持了MgO脱硫的高效率(>98%)和高利用率.燃煤烟气脱硫工业试验确认了MgSO4经吸收液循环可提浓至实验温度(40~50℃)下的饱和浓度而不产生有害影响,脱硫率因脱硫活性物质的富集反而提高,从而显示出回收工艺的技术经济可行性.; Taking magnesium oxide slurry as absorption solution,the simulation of bubbling absorption process of mixed SO_2 gases was observed in laboratory.Experiment results show that with a high efficiency and stable situation,acidification of absorbing solution was caused by HSO~-_3;the acidification trend was in accordance with the pattern of hydrolyzing of SO_2,pH changes slowly at high pH value with SO~(2-)_3 and rapidly at low value with HSO~-_3.The experiments also show the insensitive effect of liquid temperature on the high desulphurization efficiency.With relatively high dissolution rate and oxidizability of MgSO_3 as well as the high solubility of MgSO_4,the desulphurization efficiency utilization of MgO.Industrial experiment of FGD of coal-fired boiler showed that by recycling absorbing liquid could be raised to the concentration of MgSO_4 to the saturation concentration at the operation temperature(40～50℃),without any adverse effects on FGD efficiency.Refinement and enrichment of active substance could promote the desulphurization process,thus showed the availability of technical and economy feasibility of recovery technology.; 国家高技术研究发展计划(863)项目(2001AA642030-2) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/65358]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 崔可,柴明,徐康富,等. 回收法氧化镁湿法烟气脱硫机理和工艺基础研究[J],2010, 2010. |
| APA | 崔可.,柴明.,徐康富.,马永亮.,CUI Ke.,...&MA Yong-liang.(2010).回收法氧化镁湿法烟气脱硫机理和工艺基础研究.. |
| MLA | 崔可,et al."回收法氧化镁湿法烟气脱硫机理和工艺基础研究".(2010). |
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