An investigation on NO removal by wet scrubbing using NaClO2 seawater solution.
An investigation on NO removal by wet scrubbing using NaClO2 seawater solution.
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NaClO2海水溶液湿式洗涤去除NO的研究
DOI：
10.1186/s40064-016-2528-3
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Yan Z
中科院分区：
文献类型：
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作者：
Han Z;Yang S;Zheng D;Pan X;Yan Z
采用循环洗涤模式，研究了氯化钠海水溶液湿法洗涤对NO的去除效果。结果表明，当洗涤液中NaClO2浓度大于10 mM时，循环洗涤过程中可以完全去除NO。与NaClO2淡水相比，nacl浓度为15 mM的海水的突破时间延长了34.3%。NaClO2海水的突破时间延长主要是由于溶液中NaClO2的利用率提高。海水良好的缓冲能力能有效抑制NaClO2的酸性分解成ClO2。对反应产物的分析表明，废液中的阴离子主要为氯离子和硝酸盐离子。离子色谱法计算的NaClO2利用率与突破次数的实验结果吻合较好。
The experiments were conducted to investigate the NO removal by wet scrubbing using NaClO2 seawater solution in a cyclic scrubbing mode. Results show that, when the concentration of NaClO2 in scrubbing solution is higher than 10 mM, a complete removal of NO can be achieved during the cyclic scrubbing process. The breakthrough time for seawater with 15 mM NaClO2 is enhanced by 34.3 % compared with that for NaClO2 freshwater. The extension of the breakthrough time for NaClO2 seawater is mainly ascribed to the improved utilization of NaClO2 in the solution. The good buffering ability of seawater could suppress the acidic decomposition of NaClO2 into ClO2 effectively. The analysis of reaction products indicates that the main anions in the spent liquor are chloride ions and nitrate ions. The calculation of NaClO2 utilization according to the ion chromatography also agrees well with the experimental results of breakthrough times.