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Reaction performance study on denitration in aqueous solution of the dual oxidant (H 2 O 2 /S 2 O 8 2 − )
Author(s) -
Wang Zhiping,
Wang Zuwu
Publication year - 2016
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12359
Subject(s) - aqueous solution , chemistry , ionic bonding , ion , ionic strength , inorganic chemistry , nuclear chemistry , analytical chemistry (journal) , chromatography , organic chemistry
The reaction performance study on NO removal by using the dual oxidant (H 2 O 2 /S 2O 8 2 − ) solution was carried out in self‐designed bubbling reactor. The experimental results showed that NO removal efficiency was up to 92.9% at pH 11. The results of the thermodynamics calculation verified that NO removal by using strong alkaline dual oxidant (H 2 O 2 /S 2O 8 2 − ) solution was feasible. The results of the kinetic study showed that the reaction between NO and dual oxidant (H 2 O 2 /S 2O 8 2 − ) in strong alkaline condition was found to be 1.5‐order with respect to NO, and the average activation energy of this reaction was 26.32 kJ mol −1 in the quick‐reaction zone. The ion chromatography (IC) analysis results in strong alkaline condition showed thatNO 3 −andSO 4 2 −were the final ionic product in spent reaction solution. This dual oxidant (H 2 O 2 /S 2O 8 2 − ) was a promising oxidant for the simultaneous wet removal of NO and SO 2 with high efficiency, no secondary pollution and low cost. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1361–1366, 2016