| FeSO4溶液催化氧化脱除烟气中SO2研究 |
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| 引用本文： | 张玉,周集体,王栋,张爱丽,王一鸥.FeSO4溶液催化氧化脱除烟气中SO2研究[J].大连理工大学学报,2004,44(1):60-64. |
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| 作者姓名： | 张玉 周集体 王栋 张爱丽 王一鸥 |
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| 作者单位： | 大连理工大学,环境与生命学院,辽宁,大连,116024;辽宁省环境科学研究院,辽宁,沈阳,110031 |
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| 摘 要： | 提出了一种烟气脱硫新工艺．实验在无其他催化剂条件下进行，FeSO4为脱硫吸收液．脱硫过程中加入铁屑以实现高脱硫率和回收硫的目的．对比实验发现加入铁屑可显著提高SO2脱除效率．连续运行实验结果表明，脱硫率与吸收液pH的变化同步．吸收液中总铁物质的量浓度随时问的变化及初始FeSO4物质的量浓度对脱硫率和吸收液pH的影响显示，在保持较高脱硫率的同时，制取高浓度FeSO4溶液是可行的．并调查了吸收温度、液气比、空塔气速和SO2入口质量浓度对脱硫率和吸收液pH的影响．
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| 关 键 词： | FeSO4溶液 催化氧化 SO2 铁屑 |
| 文章编号： | 1000-8608(2004)01-0060-05 |
Research on removal of sulfur dioxide from flue gas by FeSO4 solution catalytic oxidation |
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| ZHANGYu,ZHOUJi-ti.Research on removal of sulfur dioxide from flue gas by FeSO4 solution catalytic oxidation[J].Journal of Dalian University of Technology,2004,44(1):60-64. |
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| Authors: | ZHANGYu ZHOUJi-ti |
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| Institution: | ZHANGYu~1,ZHOUJi-ti~ |
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| Abstract: | A new method of flue gas desulfurization is reported. FeSO_4 solution is used to remove sulfur dioxide without other catalyst. Scrap iron is deposited during desulfurization process in order to achieve sulfur recovery and higher SO_2 removal efficiency. Contrastive experiments demonstrate that SO_2 removal efficiency is improved obviously when scrap iron is added. The continuous experiment shows that the change of SO_2 removal efficiency and absorbent pH is synchronous. Moreover, the change of total iron molar concentration in absorbent with time and the effect of initial FeSO_4 molar concentration on SO_2 removal efficiency and absorbent pH indicate that SO_2 removal efficiency remains higher; meanwhile, higher concentration FeSO_4 solution can be gained. Finally, the SO_2 inlet mass concentration, liquid-gas ratio, superficial gas speed and absorption temperature are studied as parameters affecting the removal efficiency of sulfur dioxide from flue gas and absorbent pH. |
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| Keywords: | FeSO_4 solution catalytic oxidation SO_2 scrap iron |
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