Engineering practice and economic analysis of ozone oxidation wet denitrification technology

Yang Li; Defu Che; Chenglong Yang; Mingyu Yao; Tingwen Zhao; Kangli Fu; Hanchen Zhao

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Engineering practice and economic analysis of ozone oxidation wet denitrification technology

Resources and Environmental Technology | Updated：2026-01-06

- Engineering practice and economic analysis of ozone oxidation wet denitrification technology
- Engineering practice and economic analysis of ozone oxidation wet denitrification technology
- 中国化学工程学报（英文版） 2021年29卷第1期页码：401-408
- Affiliations：
  
  1. Xi'an Thermal Power Research Institute Co, Ltd,Xi'an,China,710032
  2. State Key Laboratory of Multiphase Flow for Power Engineering, Xi'an Jiaotong University,Xi'an,China,710049
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2021
- Accepted：
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Yang Li, Defu Che, Chenglong Yang, 等. Engineering practice and economic analysis of ozone oxidation wet denitrification technology[J]. 中国化学工程学报（英文版）, 2021,29(1):401-408.

Yang Li, Defu Che, Chenglong Yang, Mingyu Yao, Tingwen Zhao, Kangli Fu, Hanchen Zhao. Engineering practice and economic analysis of ozone oxidation wet denitrification technology[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 401-408.
Yang Li, Defu Che, Chenglong Yang, 等. Engineering practice and economic analysis of ozone oxidation wet denitrification technology[J]. 中国化学工程学报（英文版）, 2021,29(1):401-408. DOI：

Yang Li, Defu Che, Chenglong Yang, Mingyu Yao, Tingwen Zhao, Kangli Fu, Hanchen Zhao. Engineering practice and economic analysis of ozone oxidation wet denitrification technology[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 401-408. DOI：

摘要

Abstract

and NO emitted from coal-fired power plants have caused serious air pollution in China. In this study

a test system for NO oxidation using O

is established. The basic characteristics of NO oxidation and products forms are studied. A separate test system for the combined removal of SO

and NO

is also established

and the absorption characteristics of NO

are studied. The characteristics of NO oxidation and NO

absorption were verified in a 35 t·h

-1

industrial boiler wet combined desulfurization and denitrification project. The operating economy of ozone oxidation wet denitrification technology is analyzed. The results show that O

has a high rate and strong selectivity for NO oxidation. When O

is insufficient

the primary oxidation product is NO

. When O

is present in excess

continues to get oxidized to N

or NO

. The removal efficiency of NO

in alkaline absorption system is low (only about 15%). NO

removal efficiency can be improved by oxidizing NO

to N

or NO

by increasing ozone ratio. When the molar ratio of O

/NO is 1.77

the NO

removal efficiency reaches 90.3%

while the operating cost of removing NO

per kilogram is 6.06 USD (NO

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