Absorption kinetics of nitrogen oxides using sodium chlorite solutions in twin spray columns

Chien Tsung-Wen; Hsin Chu; Yarn Chi Li

doi:10.1007/s11270-005-6916-5

Absorption kinetics of nitrogen oxides using sodium chlorite solutions in twin spray columns

Chien Tsung-Wen, Hsin Chu, Yarn Chi Li

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

NO_Xis a major pollutant that causes acid deposition and photochemical smog. A large amount of NO_Xis emitted from combustion sources such as power plants. As some articles have indicated, NO_Xremoval with NaClO₂solution in an absorption column is an effective control approach. In this approach, first insoluble NO is oxidized into water-soluble NO₂under acidic conditions, then NO₂is removed in alkaline NaClO₂solutions. The results indicate that the reaction rate constant is 9.1×10⁴(L)^4.4/cm⁶/s/mol^2.4in the first absorption column with acidic conditions, and the reaction orders with respect to NO and NaClO₂are 1.4 and 2, respectively. In the second absorption column with alkaline conditions, the reaction rate constant is 3.2×10⁷(L)^5.2/cm⁶/s/mol^3.2and the reaction orders with respect to NO and NaClO₂are 1.6 and 2.5, respectively. The activation energies in the first and second absorption column are 71.8 and 139.6 kJ/mol, respectively.

Original language	English
Pages (from-to)	237-250
Number of pages	14
Journal	Water, Air, and Soil Pollution
Volume	166
Issue number	1-4
DOIs	https://doi.org/10.1007/s11270-005-6916-5
Publication status	Published - 2005 Jan 1

All Science Journal Classification (ASJC) codes

Environmental Engineering
Environmental Chemistry
Ecological Modelling
Water Science and Technology
Pollution

Access to Document

10.1007/s11270-005-6916-5

Cite this

@article{abf30388bba84c28a64d5f926671c98f,

title = "Absorption kinetics of nitrogen oxides using sodium chlorite solutions in twin spray columns",

abstract = "NOXis a major pollutant that causes acid deposition and photochemical smog. A large amount of NOXis emitted from combustion sources such as power plants. As some articles have indicated, NOXremoval with NaClO2solution in an absorption column is an effective control approach. In this approach, first insoluble NO is oxidized into water-soluble NO2under acidic conditions, then NO2is removed in alkaline NaClO2solutions. The results indicate that the reaction rate constant is 9.1×104(L)4.4/cm6/s/mol2.4in the first absorption column with acidic conditions, and the reaction orders with respect to NO and NaClO2are 1.4 and 2, respectively. In the second absorption column with alkaline conditions, the reaction rate constant is 3.2×107(L)5.2/cm6/s/mol3.2and the reaction orders with respect to NO and NaClO2are 1.6 and 2.5, respectively. The activation energies in the first and second absorption column are 71.8 and 139.6 kJ/mol, respectively.",

author = "Chien Tsung-Wen and Hsin Chu and Li, {Yarn Chi}",

year = "2005",

month = jan,

day = "1",

doi = "10.1007/s11270-005-6916-5",

language = "English",

volume = "166",

pages = "237--250",

journal = "Water, Air, and Soil Pollution",

issn = "0049-6979",

publisher = "Springer Netherlands",

number = "1-4",

}

TY - JOUR

T1 - Absorption kinetics of nitrogen oxides using sodium chlorite solutions in twin spray columns

AU - Tsung-Wen, Chien

AU - Chu, Hsin

AU - Li, Yarn Chi

PY - 2005/1/1

Y1 - 2005/1/1

N2 - NOXis a major pollutant that causes acid deposition and photochemical smog. A large amount of NOXis emitted from combustion sources such as power plants. As some articles have indicated, NOXremoval with NaClO2solution in an absorption column is an effective control approach. In this approach, first insoluble NO is oxidized into water-soluble NO2under acidic conditions, then NO2is removed in alkaline NaClO2solutions. The results indicate that the reaction rate constant is 9.1×104(L)4.4/cm6/s/mol2.4in the first absorption column with acidic conditions, and the reaction orders with respect to NO and NaClO2are 1.4 and 2, respectively. In the second absorption column with alkaline conditions, the reaction rate constant is 3.2×107(L)5.2/cm6/s/mol3.2and the reaction orders with respect to NO and NaClO2are 1.6 and 2.5, respectively. The activation energies in the first and second absorption column are 71.8 and 139.6 kJ/mol, respectively.

AB - NOXis a major pollutant that causes acid deposition and photochemical smog. A large amount of NOXis emitted from combustion sources such as power plants. As some articles have indicated, NOXremoval with NaClO2solution in an absorption column is an effective control approach. In this approach, first insoluble NO is oxidized into water-soluble NO2under acidic conditions, then NO2is removed in alkaline NaClO2solutions. The results indicate that the reaction rate constant is 9.1×104(L)4.4/cm6/s/mol2.4in the first absorption column with acidic conditions, and the reaction orders with respect to NO and NaClO2are 1.4 and 2, respectively. In the second absorption column with alkaline conditions, the reaction rate constant is 3.2×107(L)5.2/cm6/s/mol3.2and the reaction orders with respect to NO and NaClO2are 1.6 and 2.5, respectively. The activation energies in the first and second absorption column are 71.8 and 139.6 kJ/mol, respectively.

UR - http://www.scopus.com/inward/record.url?scp=24644486931&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24644486931&partnerID=8YFLogxK

U2 - 10.1007/s11270-005-6916-5

DO - 10.1007/s11270-005-6916-5

M3 - Article

AN - SCOPUS:24644486931

SN - 0049-6979

VL - 166

SP - 237

EP - 250

JO - Water, Air, and Soil Pollution

JF - Water, Air, and Soil Pollution

IS - 1-4

ER -

Absorption kinetics of nitrogen oxides using sodium chlorite solutions in twin spray columns

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this