An Innovative Approach to Oxidative Removal of Hydrogen Sulfide Using the Solution of Peroxo Heteropolyacid
An Innovative Approach to Oxidative Removal of Hydrogen Sulfide Using the Solution of Peroxo Heteropolyacid
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DOI：
10.4209/aaqr.2016.12.0550
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发表时间：
2017
影响因子：
4
通讯作者：
Xinpeng Liu;Rui Wang
中科院分区：
文献类型：
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作者：
Xinpeng Liu;Rui Wang
提出了用过氧磷钼酸溶液脱除H_2S的新方法。结果表明，过氧磷钼酸溶液具有良好的脱除H_2S的能力。在脱硫剂浓度为0.02mol L-1的条件下，采用两级吸收10h，脱硫率可达100%。考察了温度、过氧磷钼酸浓度和硫化氢浓度对脱硫率的影响。结果表明，在较低的温度下，较高的吸收剂浓度、较低的H_2S浓度和较高的H_2O_2浓度有利于脱除H_2S。该吸附剂表现出良好的再生性能，只需加入几滴30%的过氧化氢溶液即可复活。X-射线光电子能谱表明，硫化氢被氧化成SO42-。
ABSTRACTA new method of removing H2S using the solution of peroxo phosphomolybdic acid was developed. The results showed that the solution of peroxo phosphomolybdic acid had perfect capacity for H2S removal. A H2S removal efficiency of 100% for 10 h could be achieved by using two-stage absorption with an absorbent concentration of 0.02 mol L–1. The effect of temperature, concentration of peroxo phosphomolybdic acid and H2S on H2S removal was explored. According to the results, a high absorbent concentration, low H2S concentration and slightly excessive H2O2 are beneficial to H2S removal under relatively low temperature. The absorbent showed a perfect regeneration performance, and could be reactivated simply by adding a few drops of 30% H2O2 solution. The X-ray photoelectron spectra showed that the H2S was oxidized to SO42– finally.