南京理工大学学报（自然科学版）2013，Vol.37Issue(1)：164-168,5.
水和稀硝酸吸收NO2的研究
Investigation of NO2 absorption in water or dilute nitric acid
摘要
Abstract
For resourceful treatment of NOx waste gases,the performance of NO2 absorption in water or dilute nitric acid is investigated to explore the influence of the absorbent amount, nitric acid con-centration(3% -30%) and absorption pressure. It is found that the increase in absorbent amount, nitric acid concentration and absorption pressure all lead to the higher absorption efficiency. Absorption of NO2 in water includes chemical and physical absorption processes, furthermore, physical diffusion and chemical reaction exist in both gas and liquid phases. In the present work,the composition of HNO2 and HNO3 in the absorption solution is analyzed and the variations in the concentration of NO2 and N2O4 in gas phase are compared before and after the absorption. It is proved that the absorption occurs mainly with the chemical reaction of N2O4 and water.关键词
二氧化氮/吸收/硝酸/吸收机理/资源化Key words
NO2/absorption/nitric acid/absorption mechanism/resourceful treatment分类
化学化工引用本文复制引用
耿皎,王晓旭,袁刚,张锋,张志炳..水和稀硝酸吸收NO2的研究[J].南京理工大学学报（自然科学版）,2013,37(1):164-168,5.基金项目
国家自然科学基金(20906046) （20906046）
江苏省自然科学基金(BK2009043) （BK2009043）
江苏省环保科研课题(2012017) （2012017）
