中国电机工程学报2017，Vol.37Issue(13)：3802-3808,7.DOI:10.13334/j.0258-8013.pcsee.161905
低温等离子改性复合钙基吸附剂烟气脱汞脱硫实验研究
Experimental Study of Demercuration and Desulfurization From Flue Gas by Calcium-based Composite Sorbent with Non-thermal Plasma Treated
摘要
Abstract
To improve Hg and SO2 removal efficiency of calcium-based composite sorbent,the simple and efficient non-chemical treatment method was proposed.Calcium-based composite sorbent was treated by non-thermal plasma in air environment and characterized with Fourier transform infrared spectroscopy (FT-IR) and Brunauer-Emmett-Teller (BET) surface area to study the influence of non-thermal plasma modification on the surface physical and chemical properties.Demercuration and desulfurization experiments were carried out in a fixed bed adsorption experimental stage.The mass ratio of AC/CaO and hydration conditions on mercury adsorption effect were explored,and the desulfurization performance of the adsorbent was also considered.Under the optimized conditions,the effects of non-thermal plasma modification time and power on removal of Hg and SO2 were investigated.The results showed that the compound calcium-based sorbents prepared under optimum conditions with good surface area and pore structure,can effectively remove Hg and SO2 in flue gas.Compound calcium-based sorbents treated with non-thermal plasma had higher mercury and SO2 removal efficiency.The main reason was that non-thermal plasma treatment increased functional groups,which played an important role in Hg and SO2 absorption.Compared with the unmodified calcium-based sorbent,mercury and SO2 removal efficiency of sorbent treated by non-thermal plasma with 40W and 10 min was increased 33.10％ and 34.71％ respectively.Non-thermal plasma modification has obvious advantages,which is a potential technology for the removal of pollutants.关键词
低温等离子/复合钙基吸附剂/燃煤烟气/脱汞/脱硫Key words
non-thermal plasma/calcium-based composite sorbent/coal-fired flue gas/demercuration/desulfurization分类
资源环境引用本文复制引用
丁卫科,段钰锋,张君,陈亚南,李雅宁,陈明明,刘猛..低温等离子改性复合钙基吸附剂烟气脱汞脱硫实验研究[J].中国电机工程学报,2017,37(13):3802-3808,7.基金项目
国家自然科学基金(51376046,51576044) （51376046,51576044）
国家重点研发计划(2016YFC0201105,2016YFB0600604-02).Project Supported by National Natural Science Foundation of China (51376046,51576044) （2016YFC0201105,2016YFB0600604-02）
The National Key Research and Development Program (2016YFC0201105,2016YFB0600604-02). （2016YFC0201105,2016YFB0600604-02）
