Experimental Research on Simultaneous Desulfurization and Denitrification by O3/NaClO Gas-Liquid Phase Oxidation

doi:10.11930/j.issn.1004-9649.2014.12.156.4

Abstract

Abstract: In this paper, a new method of simultaneous desulfurization and denitrification by O₃/NaClO composite sorbent for thermal power plants is proposed. Its efficiencies of desulfurization and denitrification are also tested under different conditions. Considering the actual operation conditions, the initial concentration of SO₂ and NO_x are set as 600 mg/m³ and 500 mg/m³, respectively. The results indicate that the efficiencies of desulfurization and denitration reach as much as 97.04% and 95.08% respectively under the following conditions: ozone dosage, 5.35 g/h; NaClO concentration, 15 mmol/L; absorption solution initial pH value, 5; ratio of liquid to gas, 50 L/m³; and reaction temperature, 50 ℃. Additionally, this method has the advantages of simple operation procedures and fast SO₂ and NO_x removal without any clogging or scaling issues. If the production cost of O₃ can be reduced effectively, it is certain that this new method will have a very promising industrial application prospect.

Key words: O3/NaClO oxidation sorbent, thermal power plant, flue gas, desulfurization, denitrification

CLC Number:

TM621

LI Juan-juan, JIANG Bin, JIANG Yan-yan, PAN Li-li. Experimental Research on Simultaneous Desulfurization and Denitrification by O₃/NaClO Gas-Liquid Phase Oxidation[J]. Electric Power, 2014, 47(12): 156-160.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.12.156.4

https://www.electricpower.com.cn/EN/Y2014/V47/I12/156

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Experimental Research on Simultaneous Desulfurization and Denitrification by O₃/NaClO Gas-Liquid Phase Oxidation

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