Enhancement of Elemental Mercury Oxidation by Core–Shell CuCo2O4@SiO2 Oxygen Carrier with Strong Oxygen Release and Weak Adsorption Capacity in Chemical-Looping Combustion

Wang, Chaoran; Liu, Dunyu; Xu, Kailong; Jin, Jing; Ma, Jingjing

doi:10.1021/acs.energyfuels.3c02821

Cited by 4 publications

(2 citation statements)

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“…(d) The energy profiles for the oxygen transport process over CuCo 2 O 4 and CuCo 2 O 4 @SiO 2 oxygen carriers. Panels c and d were reproduced with permission from ref . Copyright 2023 ACS Publications.…”

Section: Reaction Mechanism Of Mercury With Oxygen Carriersmentioning

confidence: 99%

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Review and Outlook of Theoretical Understanding on Pollutants Reaction Mechanism during Chemical Looping Combustion

Ma,

Liu,

Yang

et al. 2024

Energy Fuels

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Chemical looping combustion (CLC) has emerged as a promising technology for CO 2 capture with low cost and energy penalty. In the CLC system, pollutants containing sulfur, nitrogen, and mercury originating from solid fuels are inevitably generated, which will not only lead to equipment corrosion and environmental problems but also affect the purity of CO 2 captured by CLC. The reaction mechanism of pollutants with oxygen carriers is closely associated with the pollutant removal efficiency of the CLC system. Density functional theory (DFT) calculations have been widely used to reveal the reaction mechanism of pollutants with oxygen carriers at the atomic level. Thus, this work reviews the research progress on the reaction mechanism of different pollutants with oxygen carriers through DFT calculations during chemical looping combustion. The effects of pollutants containing sulfur, nitrogen, and mercury on the reactivity of oxygen carriers are systematically elucidated, and the reaction pathways of pollutants on the oxygen carrier surface are discussed. Furthermore, the influence mechanism of various flue gas components on the interaction between pollutants and oxygen carriers is summarized. Finally, we provide an outlook on the reaction mechanism of pollutants with oxygen carriers during chemical looping combustion.

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Section: Reaction Mechanism Of Mercury With Oxygen Carriersmentioning

confidence: 99%

“…CuCo 2 O 4 is a typical spinel structure with good activity, high stability, and environmental benefits. Wang et al further synthesized core–shell CuCo 2 O 4 @SiO 2 oxygen carrier. The adsorbed Hg 0 will react with surface lattice oxygen to produce HgO.…”

Section: Reaction Mechanism Of Mercury With Oxygen Carriersmentioning

confidence: 99%