低温等离子改性复合钙基吸附剂烟气脱硫实验研究

发布时间：2018-05-06 21:23

本文选题：低温等离子 + 复合钙基吸附剂　；参考：《化工进展》2017年03期

【摘要】：低温等离子技术对固体吸附剂表面具有明显的改性作用,为研究低温等离子改性对复合钙基吸附剂脱硫的影响,并开发高效的脱硫吸附剂,分别制取了不同比例的活性炭/复合钙基吸附剂(AC/CaO),并在固定床吸附实验台上进行脱硫实验,探究配比、吸附温度、O_2浓度对SO_2吸附效果的影响。在优化的实验条件下,进一步探究低温等离子改性对复合钙基吸附剂脱硫的影响。结果表明,在最佳实验条件下,复合钙基吸附剂对SO_2的单位质量吸附量达到24.89mg/g,大于纯CaO的脱硫效果;通过低温等离子处理后的复合钙基吸附剂拥有更高的SO_2脱除效率,与未改性复合钙基吸附剂相比,单位质量吸附量提高了61.7%;在SO_2和NO的竞争脱除反应中,经过低温等离子改性后,复合钙基吸附剂脱除污染物向着有利于脱除SO_2的方向发展。
[Abstract]:The surface of solid adsorbent was modified by low temperature plasma technology. In order to study the effect of low temperature plasma modification on desulphurization of composite calcium based adsorbent and to develop high efficiency desulfurization adsorbent, Different proportions of activated carbon / composite calcium based adsorbent were prepared, and desulfurization experiments were carried out on a fixed-bed adsorption bench to investigate the effect of the ratio and adsorption temperature of O _ 2 on the adsorption effect of SO_2. Under the optimized experimental conditions, the effect of low temperature plasma modification on desulfurization of composite calcium-based adsorbents was further investigated. The results show that under the optimum experimental conditions, the adsorption capacity per unit mass of SO_2 is 24.89 mg / g, which is higher than that of pure CaO, and the SO_2 removal efficiency of the composite calcium based adsorbent treated by low temperature plasma treatment is higher than that of pure CaO. Compared with the unmodified composite calcium based adsorbent, the adsorption amount per unit mass increased by 61.7%, and in the competitive removal reaction of SO_2 and no, after low temperature plasma modification, the removal of pollutants by the composite calcium based adsorbent developed in favor of the removal of SO_2.
【作者单位】：东南大学能源热转换及其过程测控教育部重点实验室;
【基金】：国家自然科学基金(51376046,51576044) 国家重点研发计划(2016YFC0201105、2016YFB0600604-02)项目
【分类号】：X773

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