Experimental and theoretical study on performance of Cu-Fe spinel supported with certain inerts during chemical looping combustion

Li, Yu; Wang, Li; Chen, Daifen; Liu, Jing; Fan, Wei; Sun, Junjun

doi:10.1016/j.cej.2024.153591

Cited by 4 publications

(2 citation statements)

References 51 publications

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“…4,5 Thus, the oxygen carrier is critical to the successful operation of the CLC system. 6 Furthermore, the two-step reaction arrangement in the CLC system can avoid the direct contact between air and fuel, resulting in a higher energy conversion efficiency. 7 However, the use of solid fuels (coal, biomass, sewage sludge, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…The highly concentrated CO 2 stream ready for transport and storage can be obtained after simple condensation of the H 2 O steam at the outlet of the fuel reactor. The reduced oxygen carrier is oxidized and regenerated in the air reactor. , Thus, the oxygen carrier is critical to the successful operation of the CLC system . Furthermore, the two-step reaction arrangement in the CLC system can avoid the direct contact between air and fuel, resulting in a higher energy conversion efficiency …”

Section: Introductionmentioning

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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