RESEARCH PROGRESS OF MERCURY OXIDATION CATALYSTS

SHI Jianqiang; WANG Bing; CHEN Jianjun; WANG Jiancheng; LI Junhua

doi:10.13205/j.hjgc.202409022

Volume 42 Issue 9

Sep. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(9): 229-239

SHI Jianqiang, WANG Bing, CHEN Jianjun, WANG Jiancheng, LI Junhua. RESEARCH PROGRESS OF MERCURY OXIDATION CATALYSTS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(9): 229-239. doi: 10.13205/j.hjgc.202409022

Citation:

SHI Jianqiang, WANG Bing, CHEN Jianjun, WANG Jiancheng, LI Junhua. RESEARCH PROGRESS OF MERCURY OXIDATION CATALYSTS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(9): 229-239. doi: 10.13205/j.hjgc.202409022

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RESEARCH PROGRESS OF MERCURY OXIDATION CATALYSTS

doi: 10.13205/j.hjgc.202409022

1. State Key Laboratory of Clean and Efficient Coal Utilization, Key Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;
2. School of Environment, Tsinghua University, Beijing 100084, China;
3. School of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Received Date: 2024-03-23
Available Online: 2024-12-02

Abstract

Abstract

With the increasingly prominent global environmental issues, especially the high attention paid to controlling atmospheric mercury pollution, researchers have made significant progress in research on the removal technology of elemental mercury (Hg⁰) from coal-fired flue gas and other industrial emissions. Among them, mercury oxidation catalysts play a core role, effectively reducing atmospheric mercury emissions by catalyzing the conversion of Hg⁰ into divalent mercury compounds that are easy to capture and treat. Although there have been certain research achievements, the design and development of new efficient, stable, and adaptable Hg⁰ oxidation catalysts still face many challenges presently. This article systematically reviews Hg⁰ control technology and several main types of Hg⁰ oxidation catalysts, including molecular sieves, perovskites, precious metal catalysts, transition metal oxides, and vanadium-based SCR catalysts. A detailed description of the characteristics, advantages and disadvantages of various Hg⁰ oxidation catalysts is given. In addition, the article delves into the possible mechanisms of mercury oxidation, including homogeneous and multiphase oxidation mechanisms, as well as key factors affecting mercury oxidation performance. This review not only enriches the theoretical foundation of mercury pollution prevention and control, but also provides guidance for more efficient and practical Hg⁰ oxidation catalysts design in the future.
- elemental mercury,
- control technology,
- catalytic oxidation,
- industrial flue gas,
- reaction mechanism

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References

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