Study on SO2, NO Removal from Flue Gas Using an Aqueous NaClO2 Solution with Oxidation Reduction Potential and pH Control

Ye Sun

doi:10.4028/www.scientific.net/AMR.955-959.2221

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 955-959Study on SO2, NO Removal from Flue Gas Using an...

Study on SO₂, NO Removal from Flue Gas Using an Aqueous NaClO₂Solution with Oxidation Reduction Potential and pH Control

Abstract:

Removal of SO₂ and NO from the flue gas using an aqueous sodium chlorite solution was achieved in a bubbling reactor, ORP and pH were used as monitoring parameter. The effect of pH, NaClO₂ feeding rate and SO₂ concentration on simultaneous removal of SO₂ and NO_x efficiencies were systematical investigated. The results showed that SO₂ removal efficiency was always 100% and NO_x removal efficiency could achieve 65% at optimized conditions, the optimized pH value of 5-5.5 was observed. The correlation analysis among ORP, original pH, NaClO₂ feeding rate and input SO₂ concentration was established using multiple regression equations.

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Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

2221-2225

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.2221

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Online since:

June 2014

Authors:

Ye Sun

Keywords:

Nitric Oxide, ORP, pH, Removal, Sodium Chlorite, Sulfur Oxide

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