Citation: ZHANG Xiao-qi, SHEN Bo-xiong, ZHANG Xiao, CHEN Ding-ding. Study on the mercury removal using Mn loaded Fe-based MOFs[J]. Journal of Fuel Chemistry and Technology, ;2019, 47(1): 113-120. shu

Study on the mercury removal using Mn loaded Fe-based MOFs

School of Energy and Environment Engineering, Hebei University of Technology, Tianjin 300401, China

Corresponding author: SHEN Bo-xiong, shenboxiong0722@sina.com
Received Date: 26 July 2018
Revised Date: 30 October 2018

Fund Project: Tianjin Science Popularization Project 18KPXMSF00080Fund of Hebei Province E2018202180the Project of Science and Technology of Tianjin 18ZXSZSF00040Key Fund of Tianjin 18JCZDJC39800the National Important Research and Development Plan 2018YFB0605101the Project of Science and Technology of Tangshan 18130211AThe project was supported by the National Important Research and Development Plan (2018YFB0605101), Key Fund of Tianjin(18JCZDJC39800), the Project of Science and Technology of Tianjin (18ZXSZSF00040), Tianjin Science Popularization Project (18KPXMSF00080), the Project of Science and Technology of Tangshan (18130211A) and Fund of Hebei Province(E2018202180)

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The Mn/MIL-100 (Fe) mercury removal agent loaded with 6% Mn was prepared by impregnation method using Fe-based metal organic framework (MOFs) as the support. A set of fixed bed reactor apparatus was installed and used to study the performance of Mn/MIF-100(Fe) to remove elemental mercury (Hg⁰) in the simulated flue gas. The materials were characterized by XRD, XPS, BET and TGA. The results showed that Mn/MIF-100 (Fe) had high efficiency in removing elemental mercury (Hg⁰). When the GHSV was 180000 h^-1 at 250℃, the mercury removal (Hg⁰) efficiency was above 82%. The main mercury removal mechanism of Mn/MIF-100 (Fe) was oxidation, and the loading of Mn promoted the adsorption of mercury. With the increase of flue gas temperature, the oxidation efficiency of elemental mercury was gradually increased. O₂ and NO promoted the removal of mercury while SO₂ and NH₃ inhibited the removal of mercury. Mn/MIL-100(Fe) had a strong adaptability to the complex flue gas as a whole.
- Fe based MOFs,
- adsorbent for mercury,
- adsorption,
- oxidation
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