Deshwal Bal-Raj, Lee Hyung-Keun
Department of Chemistry, A.I.J.H.M. College, Rohtak 124001, Haryana, India.
J Environ Sci (China). 2009;21(2):155-61. doi: 10.1016/s1001-0742(08)62244-5.
Attempts have been made to generate euchlorine gas by chlorate-chloride process and to utilize it further to clean up SO2 and NO(x) from the flue gas in a lab scale bubbling reactor. Preliminary experiments were carried out to determine the gas and liquid phase mass transfer coefficients and their correlation equations have been established. Simultaneous removal of SO2 and NO(x) from the simulated flue gas using aqueous euchlorine scrubbing solution has been investigated. Euchlorine oxidized NO into NO2 completely and the later subsequently absorbed into the scrubbing solution in the form of nitrate. SO2 removal efficiency around 100% and NO(x) removal efficiency around 72% were achieved under optimal conditions. Mass balance has been confirmed by analyzing the sulfate, nitrate, euchlorine and chloride ion using ion chromatograph/auto-titrator and comparing it with their corresponding calculated values.
人们已尝试通过氯酸盐 - 氯化物工艺生成优氯气体，并在实验室规模的鼓泡反应器中进一步利用它来净化烟道气中的二氧化硫和氮氧化物。进行了初步实验以确定气液相传质系数，并建立了它们的关联方程。研究了使用优氯水溶液从模拟烟道气中同时去除二氧化硫和氮氧化物的情况。优氯将一氧化氮完全氧化为二氧化氮，随后二氧化氮以硝酸盐的形式被吸收到洗涤溶液中。在最佳条件下，二氧化硫去除效率约为100%，氮氧化物去除效率约为72%。通过使用离子色谱仪/自动滴定仪分析硫酸盐、硝酸盐、优氯和氯离子，并将其与相应的计算值进行比较，证实了质量平衡。
