Experimental investigation of sulfite oxidation enhancement in a micro-pore aeration system

被引：5

作者：

Zhang, Jun ^{[1
]}

Zheng, Cheng-Hang ^{[1
]}

Zhang, Yong-Xin ^{[1
]}

Xu, Zhe-Wei ^{[1
]}

Wang, Li ^{[1
]}

Li, Cun-Jie ^{[1
]}

Gao, Xiang ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Clean Energy Utilizat, State Environm Protect Engn Ctr Coal Fired Air Po, Hangzhou 310027, Zhejiang, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 106期

关键词：

FLUE-GAS DESULFURIZATION; CORONA-STREAMER DISCHARGE; OXYGEN-TRANSFER; NACL SOLUTIONS; SEAWATER; S(IV); MODEL; DISSOCIATION; KINETICS; PLASMA;

D O I：

10.1039/c6ra19337d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Seawater wet flue gas desulfurization is a promising process for coal-fired power plants. The relationship between sulfite oxidation and different parameters in the process of desulfurization seawater recovery was investigated in a laboratory-scale experimental system. The results suggest that the effect of pH on the K-S(IV) shows a trough shape, and the best K-S(IV) was achieved in the pH of 5.8. High temperature, salinity and alkalinity show a positive effect on the oxidation of S(IV), whereas the effect of flow rate is more complicated. It is found that micro-pore aeration has a better performance than coarse aeration with low flow rate, which is good for energy savings. In addition, a multi-layer perceptron model has been designed for prediction of the influence of different factors on sulfite oxidation by micro-pore aeration. The results demonstrated that the top five factors were pH, alkalinity, temperature, aeration depth and flow rate.

引用

页码：104139 / 104147

页数：9

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