Screening of Metal Oxidesfor Hg0Capture

Haitao Zhao; Gang Yang; Cheng Heng Pang; Hua Fan; Philip Hall; Sam Kingman; Tao Wu

doi:10.1016/j.egypro.2015.07.202

Screening of Metal Oxidesfor Hg⁰Capture

Haitao Zhao, Gang Yang, Cheng Heng Pang, Hua Fan, Philip Hall, Sam Kingman, Tao Wu

Department of Chemical and Environmental Engineering

Research output: Journal Publication › Conference article › peer-review

19 Citations (Scopus)

23 Downloads (Pure)

Abstract

Fossil fuel related industriesare the major anthropogenic sources of Hg⁰ emission. Due to awareness of the detrimental impact, there is an increasing interest in discovering potential materials for Hg⁰ removal. In this paper, the first-row transition metals (from V to Zn), Mo and rare earth metals (La and Ce) in the oxidation states supported by γ-Al₂O₃werepreparedand studied as potential candidates for Hg⁰ capture. Based on evolution of the parameters of enthalpies (ΔH), Gibbs free energy (ΔG), adsorption peaks (T_a, _peak), maximumHg⁰ capture efficiencies (μ_max) and activation energy (E_a)etc, the samples of Cr, Ni, Fe, Mn, Co, Ce and Cu showed better performancesfor Hg⁰ capture amongst the 11 metal oxides. The results also indicated that MoO₃ has potential to promote Hg⁰ capture since the activation energy is relatively low. Consequently, most of the Mo-based binary metal oxides have relatively high Hg⁰ removal efficienciescoupled with lowactivation energies. Particularly, the binary metal oxides of CrMo, MnMo, CuMo, CeMo andCoMo could be selected as appropriate candidates for Hg⁰ capture within specifictemperature windows.

Original language	English
Pages (from-to)	2421-2426
Number of pages	6
Journal	Energy Procedia
Volume	75
DOIs	https://doi.org/10.1016/j.egypro.2015.07.202
Publication status	Published - 2015
Event	7th International Conference on Applied Energy, ICAE 2015 - Abu Dhabi, United Arab Emirates Duration: 28 Mar 2015 → 31 Mar 2015

Keywords

Hg Capture
Metal oxides
Screening method
and kinetic parameters
thermodynamic data

ASJC Scopus subject areas

General Energy

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10.1016/j.egypro.2015.07.202

Screening of Metal Oxidesfor Hg0CaptureFinal published version, 376 KBLicence: CC BY-NC-ND

Cite this

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title = "Screening of Metal Oxidesfor Hg0Capture",

abstract = "Fossil fuel related industriesare the major anthropogenic sources of Hg0 emission. Due to awareness of the detrimental impact, there is an increasing interest in discovering potential materials for Hg0 removal. In this paper, the first-row transition metals (from V to Zn), Mo and rare earth metals (La and Ce) in the oxidation states supported by γ-Al2O3werepreparedand studied as potential candidates for Hg0 capture. Based on evolution of the parameters of enthalpies (ΔH), Gibbs free energy (ΔG), adsorption peaks (Ta, peak), maximumHg0 capture efficiencies (μmax) and activation energy (Ea)etc, the samples of Cr, Ni, Fe, Mn, Co, Ce and Cu showed better performancesfor Hg0 capture amongst the 11 metal oxides. The results also indicated that MoO3 has potential to promote Hg0 capture since the activation energy is relatively low. Consequently, most of the Mo-based binary metal oxides have relatively high Hg0 removal efficienciescoupled with lowactivation energies. Particularly, the binary metal oxides of CrMo, MnMo, CuMo, CeMo andCoMo could be selected as appropriate candidates for Hg0 capture within specifictemperature windows.",

keywords = "Hg Capture, Metal oxides, Screening method, and kinetic parameters, thermodynamic data",

author = "Haitao Zhao and Gang Yang and Pang, {Cheng Heng} and Hua Fan and Philip Hall and Sam Kingman and Tao Wu",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Published by Elsevier Ltd.; 7th International Conference on Applied Energy, ICAE 2015 ; Conference date: 28-03-2015 Through 31-03-2015",

year = "2015",

doi = "10.1016/j.egypro.2015.07.202",

language = "English",

volume = "75",

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T1 - Screening of Metal Oxidesfor Hg0Capture

AU - Zhao, Haitao

AU - Yang, Gang

AU - Pang, Cheng Heng

AU - Fan, Hua

AU - Hall, Philip

AU - Kingman, Sam

AU - Wu, Tao

PY - 2015

Y1 - 2015

N2 - Fossil fuel related industriesare the major anthropogenic sources of Hg0 emission. Due to awareness of the detrimental impact, there is an increasing interest in discovering potential materials for Hg0 removal. In this paper, the first-row transition metals (from V to Zn), Mo and rare earth metals (La and Ce) in the oxidation states supported by γ-Al2O3werepreparedand studied as potential candidates for Hg0 capture. Based on evolution of the parameters of enthalpies (ΔH), Gibbs free energy (ΔG), adsorption peaks (Ta, peak), maximumHg0 capture efficiencies (μmax) and activation energy (Ea)etc, the samples of Cr, Ni, Fe, Mn, Co, Ce and Cu showed better performancesfor Hg0 capture amongst the 11 metal oxides. The results also indicated that MoO3 has potential to promote Hg0 capture since the activation energy is relatively low. Consequently, most of the Mo-based binary metal oxides have relatively high Hg0 removal efficienciescoupled with lowactivation energies. Particularly, the binary metal oxides of CrMo, MnMo, CuMo, CeMo andCoMo could be selected as appropriate candidates for Hg0 capture within specifictemperature windows.

AB - Fossil fuel related industriesare the major anthropogenic sources of Hg0 emission. Due to awareness of the detrimental impact, there is an increasing interest in discovering potential materials for Hg0 removal. In this paper, the first-row transition metals (from V to Zn), Mo and rare earth metals (La and Ce) in the oxidation states supported by γ-Al2O3werepreparedand studied as potential candidates for Hg0 capture. Based on evolution of the parameters of enthalpies (ΔH), Gibbs free energy (ΔG), adsorption peaks (Ta, peak), maximumHg0 capture efficiencies (μmax) and activation energy (Ea)etc, the samples of Cr, Ni, Fe, Mn, Co, Ce and Cu showed better performancesfor Hg0 capture amongst the 11 metal oxides. The results also indicated that MoO3 has potential to promote Hg0 capture since the activation energy is relatively low. Consequently, most of the Mo-based binary metal oxides have relatively high Hg0 removal efficienciescoupled with lowactivation energies. Particularly, the binary metal oxides of CrMo, MnMo, CuMo, CeMo andCoMo could be selected as appropriate candidates for Hg0 capture within specifictemperature windows.

KW - Hg Capture

KW - Metal oxides

KW - Screening method

KW - and kinetic parameters

KW - thermodynamic data

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T2 - 7th International Conference on Applied Energy, ICAE 2015

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