SIMULTANEOUS CATALYTIC PURIFICATION OF NO<sub><i>x</i></sub> AND O-DCB WITH SUPPORTED Mn HYDROTALCITE-LIKE STRUCTURE CATALYST

LIANG Baorui; WANG Bin; MA Zhiliang; LIU Junjie; XU Shuiyang; WEI Zhenqiang; ZHANG Hui

doi:10.13205/j.hjgc.202202002

Volume 40 Issue 2

Apr. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(2): 8-13,126

SHEN Song, LIU Lei, WEN Wei, XING Yi, SU Wei, SUN Jiaqi. POLLUTION CHARACTERIZATION AND SOURCE ANALYSIS OF CARBON COMPONENTS OF PM2.5 IN BEIJING AND SURROUNDING AREAS IN SUMMER[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 71-80. doi: 10.13205/j.hjgc.202202012

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LIANG Baorui, WANG Bin, MA Zhiliang, LIU Junjie, XU Shuiyang, WEI Zhenqiang, ZHANG Hui. SIMULTANEOUS CATALYTIC PURIFICATION OF NO_x AND O-DCB WITH SUPPORTED Mn HYDROTALCITE-LIKE STRUCTURE CATALYST[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(2): 8-13,126. doi: 10.13205/j.hjgc.202202002

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SIMULTANEOUS CATALYTIC PURIFICATION OF NO_x AND O-DCB WITH SUPPORTED Mn HYDROTALCITE-LIKE STRUCTURE CATALYST

doi: 10.13205/j.hjgc.202202002

1. Department of Environmental Engineering, Tianjin College, University of Science and Technology Beijing, Tianjin 301830, China;
2. Tianjin Water Engineering Co., Ltd, Tianjin 300222, China;
3. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083,China

Received Date: 2021-02-23
Available Online: 2022-04-02
Publish Date: 2022-04-02

Abstract

Abstract

The cobalt-iron layered double hydroxide structure carrier(CoFe-LDH) was successfully prepared by the co-precipitation method, and the active component Mn was loaded by the impregnation method and calcined to prepare the hydrotalcite-like structure catalyst Mn_xCoFe-LDO catalyst with different Mn loadings(Where x was the mass ratio of manganese nitrate solution to CoFe-LDH). The catalytic performance of the catalyst on nitrogen oxides(NO_x) and chlorinated volatile organic compounds(CVOCs) in typical industrial exhaust gas was explored, and the catalyst was characterized by XRD, H₂-TPR, NH₃-TPD and TEM-EDX mapping. The results showed that the addition of Mn greatly improved the catalytic performance of CoFe-LDO. Among them, the catalyst with a mass ratio of 0.25 had the highest activity. The denitration efficiency was maintained above 90% in the test temperature range, and the efficiency of o-DCB removal at 300 ℃ could be up to 95.4%. This was mainly due to the best dispersibility of the active component Mn of the catalyst prepared under this ratio, and the best redox performance.
- hydrotalcite-like,
- NO_x,
- CVOCs,
- catalytic oxidation

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References

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