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Issue
Korean Journal of Chemical Engineering,
Vol.14, No.5, 377-381, 1997
Removal of Nitrogen Oxides From Air by Chemicals-Impregnated Carbons
Takeuchi Y, Yanagisawa K, Tanaka Y, Tsuruoka N
Fixation of nitrogen oxides (NOx) in air onto granular activated carbon impregnated with chemicals was attempted to improve removal efficiency of NOx by activated carbon adsorption. Nitric oxide (NO) and nitrogen dioxide (NO2), were tried to remove by a flow test. Fixed-bed adsorption breakthrough curves were obtained when some kinds of carbon sere used. The amount adsorbed of NO2 changed with the amount and kinds of metallic salts impregnated. Chemical-impregnated carbons were prepared from a commercial activated carbon. Among obtained carbons, the one which showed the highest selectivity for NOx was chosen, and its performance with the change in humidity was determined. Removal mechanism of NO2 was estimated, and the carbon impregnated with potassium hydroxide was found to be superior to any other carbon tested. The amount of the adsorbed NO and that produced by the reduction of NO2 were determined from the breakthrough curves.
Keywords: Adsorption; Chemicals-Impregnated Carbon; Evolution Ratio of NOx; NOx Removal; Reduction Ratio
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[Cited By]
  1. Kim JM, Choi KJ, Kim YH, Chang SM, HWAHAK KONGHAK, 37(2), 270, 1999
  2. Lee WK, Kim KH, Ryu SK, Park BS, Korean Chemical Engineering Research, 42(2), 196, 2004
  3. Yin Y, Zhang J, Sheng C, Korean Journal of Chemical Engineering, 26(3), 895, 2009
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