Spray scrubbing of the nitrogen oxides into NaClO2 solution under acidic conditions

研究成果: Article

24 引文 斯高帕斯(Scopus)

摘要

The operating conditions of this study were closed to the typical operating conditions of flue gas desulfurization system in the coal-fired power plant. The objective of this study was to investigate the absorption performance of lean NO in an aqueous solution of acidic sodium chlorite using a bench-scale spraying column. The NO coversion and NOx removal efficiency were increasing with the increasing NO concentration, retention time, sodium chlorite concentration, operating temperature, and decreasing initial pH of solution. As the sodium chlorite concentration were higher than 0.4 M, the NO conversion and NOx removal efficiency were 100% and 80%, respectively. The NO conversion and NOx removal efficiency under initial pH 4-7 were higher than that of initial pH > 7. It meant that this process might be suitable to combining with traditional wet flue gas desulfurization system. As the NO2/NOx ratio in the effluent gas was closed to 0.5, it might be suitable to be absorbed in the second scrubbing column operated under alkaline condition.

原文English
頁(從 - 到)403-414
頁數12
期刊Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
36
發行號4
DOIs
出版狀態Published - 2001 六月 23

All Science Journal Classification (ASJC) codes

  • Environmental Engineering

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