naa a22 4500 510819230 CHVBK 20180411083523.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11814-013-0053-4 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0053-4 Removal of nitric oxide and sulfur dioxide from flue gases using a FeII-ethylenediamineteraacetate solution [Elektronische Daten] [Hai-Song Zhu, Yan-Peng Mao, Yu Chen, Xiang-Li Long, Wei-Kang Yuan] The combined absorption of NO and SO2 into the Fe(II)-ethylenediamineteraacetate(EDTA) solution has been realized. Activated carbon is used to catalyze the reduction of FeIII-EDTA to FeII-EDTA to maintain the ability to remove NO with the Fe-EDTA solution. The reductant is the sulfite/bisulfite ions produced by SO2 dissolved into the aqueous solution. Experiments have been performed to determine the effects of activated carbon of coconut shell, pH value, temperature of absorption and regeneration, O2 partial pressure, sulfite/bisulfite and chloride concentration on the combined elimination of NO and SO2 with FeII-EDTA solution coupled with the FeII-EDTA regeneration catalyzed by activated carbon. The experimental results indicate that NO removal efficiency increases with activated carbon mass. There is an optimum pH of 7.5 for this process. The NO removal efficiency increases with the liquid flow rate but it is not necessary to increase the liquid flow rate beyond 25 ml min−1. The NO removal efficiency decreases with the absorption temperature as the temperature is over 35 °C. The Fe2+ regeneration rate may be speeded up with temperature. The NO removal efficiency decreases with O2 partial pressure in the gas streams. The NO removal efficiency is enhanced with the sulfite/bisulfite concentration. Chloride does not affect the NO removal. Ca(OH)2 and MgO slurries have little influence on NO removal. High NO and SO2 removal efficiencies can be maintained at a high level for a long period of time with this heterogeneous catalytic process. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 FeII-EDTA nationallicence Nitric Oxide nationallicence Absorption nationallicence Activated Carbon nationallicence Sulfur Dioxide nationallicence Zhu Hai-Song State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut Mao Yan-Peng State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut Chen Yu State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut Long Xiang-Li State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut Yuan Wei-Kang State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/6(2013-06-01), 1241-1247 0256-1115 30:6<1241 2013 30 11814 https://doi.org/10.1007/s11814-013-0053-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0053-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhu Hai-Song State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut NATIONALLICENCE 700 1- Mao Yan-Peng State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut NATIONALLICENCE 700 1- Chen Yu State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut NATIONALLICENCE 700 1- Long Xiang-Li State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut NATIONALLICENCE 700 1- Yuan Wei-Kang State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/6(2013-06-01), 1241-1247 0256-1115 30:6<1241 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer