Absorption of NO in an aqueous solution of NaClO2

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Absorption of NO in an aqueous solution of NaClO2. / Brogren, C; Karlsson, Hans; Bjerle, Ingemar.

In: Chemical Engineering & Technology, Vol. 21, No. 1, 1998, p. 61-70.

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Brogren, C ; Karlsson, Hans ; Bjerle, Ingemar. / Absorption of NO in an aqueous solution of NaClO2. In: Chemical Engineering & Technology. 1998 ; Vol. 21, No. 1. pp. 61-70.

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TY - JOUR

T1 - Absorption of NO in an aqueous solution of NaClO2

AU - Brogren, C

AU - Karlsson, Hans

AU - Bjerle, Ingemar

PY - 1998

Y1 - 1998

N2 - A packed column has been used to study the absorption of nitrogen oxide in an alkaline solution of sodium chlorite. The reactions taking place during the absorption have been examined and a lumped reaction model has been used to estimate rate constants from experimental data. Several parallel and consecutive reactions were found to take place during the absorption. NO was found to be oxidized to NO2 and/or to NO2-, and ClO2- was reduced to Cl- and/or to ClO-. The pH value of the absorbing liquid was found to have a great impact both on the absorption rate and on the extent of the different redox reactions within the liquid. Experimental results indicate that sodium chlorite mainly works as an agent to oxidize NO to NO: and that the major part of the nitrogen oxides are absorbed via the hydrolysis of N2O3 and N2O4.

AB - A packed column has been used to study the absorption of nitrogen oxide in an alkaline solution of sodium chlorite. The reactions taking place during the absorption have been examined and a lumped reaction model has been used to estimate rate constants from experimental data. Several parallel and consecutive reactions were found to take place during the absorption. NO was found to be oxidized to NO2 and/or to NO2-, and ClO2- was reduced to Cl- and/or to ClO-. The pH value of the absorbing liquid was found to have a great impact both on the absorption rate and on the extent of the different redox reactions within the liquid. Experimental results indicate that sodium chlorite mainly works as an agent to oxidize NO to NO: and that the major part of the nitrogen oxides are absorbed via the hydrolysis of N2O3 and N2O4.

U2 - 10.1002/(SICI)1521-4125(199801)21:1<61::AID-CEAT61>3.3.CO;2-S

DO - 10.1002/(SICI)1521-4125(199801)21:1<61::AID-CEAT61>3.3.CO;2-S

M3 - Article

VL - 21

SP - 61

EP - 70

JO - Chemical Engineering and Technology

JF - Chemical Engineering and Technology

SN - 1521-4125

IS - 1

ER -