Nitric oxide removal by combined urea and FeIIEDTA reaction systems

Investigation of Low-Temperature Selective Catalytic Reduction of NOx with Ammonia over Mn-Modified Fe2O3/AC Catalysts

“…The 10Fe1Mn/AC, 10Fe3Mn/AC, and 10Fe5Mn/AC catalysts showed the best performance at 180-240 °C among the various manganese-modified Fe 2 , and a stronger reduction ability as detected by XRD, BET, XPS and H 2 -TPR, which were all beneficial for improving the SCR performance of the catalyst. There are high NO conversion of 10Fe1Mn/AC catalyst at a molar ratio of NH 3 /NO = 1.0 and a concentration of 1.0% oxygen.…”

“…2 Several methods have been used to control NO x emissions, such as selective catalytic reduction (SCR), 3,4 the use of some absorbents (i.e. Fe II -EDTA), 2,5 plasma catalysis, 6 and selective catalytic oxidation (SCO).…”

Evaluation of Fe(iii)EDTA reduction with ascorbic acid in a wet denitrification system

“… 3 However, it is difficult to remove NO (accounting for 95% in total NO x ) via wet flue gas desulfurization (WFGD) due to low solubility of NO in water. For this reason, several approaches, including the addition of an oxidizing agent, such as KMnO 4 , 4 NaClO 2 , 5 and H 2 O 2 , 6 to oxidize NO to the more soluble NO 2 and the use of a chelating agent to unite NO to form nitrosyl complexes, 7 have been refined to improve NO absorption.…”

Evaluation of FeIIEDTA‐NO reduction by thiourea dioxide in NO removal with FeIIEDTA

“…1 It is generally considered that nitrogen oxide (NO x ) and sulfur dioxide (SO 2 ) are the priority pollutants from fuel gases. 1 It is generally considered that nitrogen oxide (NO x ) and sulfur dioxide (SO 2 ) are the priority pollutants from fuel gases.…”

“…4 But it is difficult for SCR to achieve the purpose of desulfurization. So adding oxidizing agents like KMnO 4,5 NaClO 2,6,7 NaClO, 8 and H 2 O 2, 9 for oxidizing NO into more soluble NO 2 and chelating agents 10,11 to unite NO, draws more interest, in which the removal of NO and SO 2 could be simultaneously finished off in a single process or equipment in wet process. Fe II EDTA, an efficient absorbent of NO wet absorption from exhaust gas, is extensively investigated since 1970s by many research groups because of the fast complexing ability on NO.…”