Breunig et al. (2023): Emerging concepts in intermediate carbon dioxide emplacement to support carbon dioxide removal

Hanna Marie Breunig, Fabian Rosner, Tae-Hwan Lim, Peng Peng IN: Energy & Environmental Science, https://doi.org/10.1039/d2ee03623a

Substantial upscaling of carbon dioxide capture is possible in the coming decades but existing solutions for storage are projected to be limited in annual capacity by as much as 2–10 GtCO₂ per year until mid-century. Temporary storage of CO₂ in a solid or liquid state could prove useful for filling this gap in capacity, until more permanent and ideally lucrative CO₂ sequestration options come online. There are several concepts for reversible solid-state and chemical CO₂ storage, but their advantages and limitations have yet to be reviewed in this context. This article focuses on the physical and chemical aspects of CO₂ storage via liquid and solid chemical carriers and sorbents, and gives an overview of the energetics around their use, as well as prospects for their future development.

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