| 锌、铁等离子对氧化锌烟气脱硫工艺中亚硫酸锌氧化的影响 |
| |
| 引用本文： | 刘兆斌,童华,王京刚.锌、铁等离子对氧化锌烟气脱硫工艺中亚硫酸锌氧化的影响[J].环境污染治理技术与设备,2014(1):290-293. |
| |
| 作者姓名： | 刘兆斌 童华 王京刚 |
| |
| 作者单位： | 北京化工大学环境科学与工程系,北京100029 |
| |
| 基金项目： | 科研院所技术开发研究专项资金资助项目（2013EG.111129）;质检公益性行业科研专项（201310289.3）;北京市科学技术研究院“创新团队计划”项目（IG201204N）;北京市科学技术研究院青年骨干计划项目（201305） |
| |
| 摘 要： | 在氧化锌法脱除烟气SO2工艺中，脱硫产物亚硫酸锌的氧化是实现锌、硫资源回收的关键环节。在pH为4～5，25℃等条件下，考察了锌、铁、镉离子对亚硫酸锌氧化过程的影响。结果发现，铁离子对亚硫酸锌氧化过程有较强的催化作用，锌离子有一定的催化作用，而低浓度的镉离子几乎不影响氧化过程。进一步的研究表明，锌、铁离子的独自催化氧化速率对各自的浓度均为0．5级响应，但在混合状态下，锌离子对铁离子的催化过程有抑制作用。
|
| 关 键 词： | 脱硫 亚硫酸锌 氧化 催化 动力学 |
Effects of Zn and Fe ion on zinc sulfite oxidation in flue gas desulfurization with zinc oxide |
| |
| Liu Zhaobin Tong Hua Wang Jinggang.Effects of Zn and Fe ion on zinc sulfite oxidation in flue gas desulfurization with zinc oxide[J].Techniques and Equipment for Environmental Pollution Control,2014(1):290-293. |
| |
| Authors: | Liu Zhaobin Tong Hua Wang Jinggang |
| |
| Institution: | Liu Zhaobin Tong Hua Wang Jinggang (Department of Environmental Science and Engineering, Beljing University of Chemical Technology, Beljing 100029, China) |
| |
| Abstract: | Abstract In the process of removing S02 from flue gas with zinc oxide, the oxidation of desulfhrizat~on products plays a vital role in recovering zinc and sulfur from the desulfurization course. Effects of zinc, iron, and cadmium ion concentration on zinc sulfite oxidation were studied at pH 4 - 5 and 25℃. It was found that there is a stronger catalytic effect of iron ions on S（IV） oxidation than that of zinc ions on S（IV） oxidation. And a low concentration of cadmium ions does not influence the oxidation process. Experimental results also showed that the oxidation rates of S （IV） with zinc and iron as catalyst are O. 5 order to their respective ion concentrations, under a mixed condition, however, zinc ions inhibit the catalytic effect of iron ions. |
| |
| Keywords: | desulfurization zinc sulfite oxidation catalytic kinetics |
| 本文献已被 维普 等数据库收录！ |
