KMnO_4氧化复合NaOH液相吸收脱除NO的研究  

Experimental study on NO removal by KMnO_4 oxidation combining with NaOH liquid absorption

作　　者：楼军 徐少娟 林孝鑫 朱周彬 吴祖良[2] 

机构地区：[1]浙江富春江环保热电股份有限公司,浙江富阳311418 [2]浙江工商大学环境科学与工程学院,浙江杭州310018

出　　处：《能源工程》2017年第2期48-52,共5页Energy Engineering

基　　金：浙江省重大科技项目(2012C03003-2);浙江省大学生科技创新项目(2015R408030)

摘　　要：研究了KMnO_4/NaOH混合溶液氧化吸收NO过程,结果表明:KMnO_4对NO的脱除效果明显好于NaClO_2,而H_2O_2、NaClO对NO脱除几乎没有效果;KMnO_4或NaOH浓度的增加都能促进NO的氧化吸收,从而提高NO的脱除率;KMnO_4/NaOH同时脱硫脱硝过程中,SO_2几乎能被完全吸收,脱硫率可达98%以上。KMnO_4浓度较低时,SO_2的加入使NO脱除效率有轻微下降;而当KMnO_4浓度较高时,SO_2的加入对NO的脱除有促进作用,使NO脱除率增加15%左右。Experiments on NO removal were carried out using KMnO_4/NaOH mixed solution.The results were as follows：NO removal efficiency under KMnO_4 was obviously better than that under NaClO_2,while there weren＇t distinct effect on NO removal under H_2O_2 or NaClO.When the solution concentration of KMnO_4 or NaOH was increased,NO oxidation and absorption were improved and the NO removal efficiency was increased.During simultaneous desulfurization and denitrification by KMnO_4/NaOH mixed solution,SO_2 was absorbed almost completely and desulfurization efficiency reached above 98%.When the KMnO_4 concentration was lower,SO_2 made the NO removal efficiency decrease slightly.While the KMnO_4 concentration was higher,SO_2 absorption had positive effect on NO removal,and the NO removal efficiency increased about 15%.

关 键 词：KMNO4 NAOH NO脱除 氧化 吸收 

分 类 号：X511[环境科学与工程—环境工程]