Preparation and characterization of Fe2O3–SiO2 composite and its effect on elemental mercury removal

Tan, Zengqiang; Su, Sheng; Qiu, Jianrong; Kong, Fangfang; Wang, Zean; Fang, Hao; Xiang, Jun

doi:10.1016/j.cej.2012.04.083

Cited by 91 publications

(46 citation statements)

References 45 publications

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“…The main active component of a metal oxide catalyst is Fe 2 O 3 , MnO 2 , CeO 2 , V 2 O 5 , and so on, especially MnO 2 , which has been proven to be an effective active component in low temperature catalysts [12][13][14]. Qiao for mercury oxidation at 373-473 K, and the mercury oxidation efficiency reached over 90% in the present of 20 ppm HCl [16].…”

Section: Introductionmentioning

confidence: 99%

Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature

Zhao

Liu

Zhou

et al. 2016

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature

Zhao

Liu

Zhou

et al. 2016

Chemical Engineering Journal

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“…[35] The effect of the O 2 concentration (0-1%) on the oxidation of Hg 0 using MnCe10(2/1)/Ti was examined. [35] The effect of the O 2 concentration (0-1%) on the oxidation of Hg 0 using MnCe10(2/1)/Ti was examined.…”

Section: Effect Of Omentioning

confidence: 99%

High efficiency of Mn–Ce‐modified TiO₂ catalysts for the low‐temperature oxidation of Hg⁰ under a reducing atmosphere

Zhang

Ning

Wang

et al. 2019

Applied Organom Chemis

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Manganese-and cerium oxide-modified titania catalysts were prepared by the deposition precipitation for the removal of elemental mercury (Hg 0 ) from simulated yellow phosphorus off-gas at low temperature. In addition, these catalysts were characterized by X-ray diffraction, Brunauer-Emmett-Teller measurements, X-ray photoelectron spectroscopy and field-emission scanning electron microscope to determine the surface morphology of the obtained compounds and explore their formation mechanism. The results revealed that a Mn-Ce loading and reaction temperature of 10% and 150°C, respectively, as well as a Mn/Ce molar ratio of 2:1, led to an optimal efficiency for the oxidation of elemental mercury. Furthermore, the effects of flue gas components were investigated. The presence of O 2 clearly promoted the oxidation of Hg 0 .A CO atmosphere did not affect the Hg 0 oxidation, when compared with N 2 , whereas the presence of H 2 S and water vapor inhibited the oxidation process. Furthermore, the X-ray photoelectron spectroscopy spectra of Hg 4f revealed that the elemental mercury adsorbed by the catalyst is present as HgO. Finally, the Hg 0 catalytic oxidation mechanism was discussed on the basis of the experimental results and characterization analysis.

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“…The physisorbed elemental mercury was flushed through N 2 and the remains were regarded as the chemisorbed mercury [22]. The a-Fe 2 O 3 samples were obtained after reacting with H 2 S and Hg 0 at 130°C and the desorption tests of the Hg 0 -adsorbed samples were carried out at the range of 100-700°C with heating rate of 10°C/min [23].…”

Section: The Hg 0 Release Characteristics Of the Hg 0 -Adsorbed Samplesmentioning

confidence: 99%

Study of Hg0 removal characteristics on Fe2O3 with H2S

Liu

Xue

Guo

2015

Fuel

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Preparation and characterization of Fe2O3–SiO2 composite and its effect on elemental mercury removal

Cited by 91 publications

References 45 publications

Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature

Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature

High efficiency of Mn–Ce‐modified TiO₂ catalysts for the low‐temperature oxidation of Hg⁰ under a reducing atmosphere

Study of Hg0 removal characteristics on Fe2O3 with H2S

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Preparation and characterization of Fe2O3–SiO2 composite and its effect on elemental mercury removal

Cited by 91 publications

References 45 publications

Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature

Catalytic oxidation of elemental mercury by Mn–Mo/CNT at low temperature

High efficiency of Mn–Ce‐modified TiO2 catalysts for the low‐temperature oxidation of Hg0 under a reducing atmosphere

Study of Hg0 removal characteristics on Fe2O3 with H2S

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Product

Resources

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High efficiency of Mn–Ce‐modified TiO₂ catalysts for the low‐temperature oxidation of Hg⁰ under a reducing atmosphere