超重力法脱除氮氧化物实验研究  

Experimental Study on Removal of Nitrogen Oxides by Hypergravity Method

作　　者：孙艺 于正林[1] Sun Yi;Yu Zhenglin(Changchun University of Science and Technology,Jilin,130022)

机构地区：[1]长春理工大学,吉林130022

出　　处：《当代化工研究》2021年第7期1-3,共3页Modern Chemical Research

摘　　要：利用H_(2)O_(2)和KOH溶液,在自制超重力设备中对含氮氧化物的废气进行脱除处理,对影响氮氧化物脱除效率的因素进行实验研究。实验考察了转速、气液比、反应温度、H_(2)O_(2)溶液浓度、KOH溶液浓度对氮氧化物脱除效率的影响。实验结果表明,脱除效率随着转速增加先增加后降低;随着气液比增加先增加后基本稳定;随着反应温度升高先增加后基本持平;随着H_(2)O_(2)溶液浓度先增加后基本持平、随着KOH溶液浓度增加先增加后基本持平。当转速达到900rpm、气液比为13:1、反应温度达到42℃、H_(2)O_(2)溶液浓度为0.25mol/L、KOH溶液浓度在0.1mol/L时,该种状态下,脱除效率达到最佳,可达到93.66%。Using H_(2)O_(2)and KOH solutions,removal of nitrogen oxide-containing waste gas from self-made hypergravity equipment,the factors affecting the removal efficiency of nitrogen oxides were studied experimentally.The effects of rotational speed,gas-liquid ratio,reaction temperature,H_(2)O_(2)solution concentration and KOH solution concentration on nitrogen oxide removal efficiency were investigated.Experimental results show that,the removal efficiency increases first and then decreases with the increase of rotational speed;with the increase of gas-liquid ratio,it increases first and then is stable;with the increase of reaction temperature,the reaction temperature increases first and then is basically flat;with the increase of H_(2)O_(2)solution concentration,the KOH solution concentration increases first and then the same.When the rotational speed reaches 900 rpm、the gas-liquid ratio is 13:1,the reaction temperature reaches 42℃,the H_(2)O_(2)solution concentration is 0.25 mol/L、KOH the solution concentration is 0.1 mol/L.In this state,the best removal efficiency,it can reach 93.66%.

关 键 词：超重力 气液比 氮氧化物 吸收效率 

分 类 号：X511[环境科学与工程—环境工程]