Comparison of different reaction routes for carbonation of APC residues
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This paper analyses and compares the results of accelerated carbonation experiments for CO2 storage carried out on the air pollution control (APC) residues of a waste incineration plant, via both the dry and the wet route. The two routes achieved a similar maximum calcium conversion to carbonates (around 65%) corresponding to a potential CO2 storage capacity of 250 g/kg residues. For the dry route, maximum conversion was achieved in a few minutes at 400 ∘C under a 10% CO2 atmosphere, whereas for the wet route it was obtained in about 10 minutes under a 100% CO2 atmosphere, with a liquid to solid ratio of 0.2, at 30 ∘C and 3 bar, or without water addition at 50 ∘C. These results suggest that carbonation of APC residues, and possibly of other combustion residues, through either the dry or wet route, may be effectively applied for CO2 storage, at least in the niche market of waste incineration.
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Temperature influences both the dissolution of CO2 in water (dissolution decreases with temperature) and dissolution of calcium and magnesium from minerals (dissolution increases when temperature increases).
“Temperature influences both the dissolution of CO 2 in water (dissolution decreases with temperature) and dissolution of calcium and magnesium from the minerals (dissolution increases when temperature increases).”
From A review of mineral carbonation technologies to sequester CO <sub>2</sub> (2014) · cites this paper as [67]
Low temperatures enhance the diffusion of CO2 in the carbonated shell, while high temperatures increase the magnesium and calcium available.
“Low temperatures enhance the diffusion of CO 2 in the carbonated shell, while high temperatures increase the magnesium and calcium available.65,67”
From A review of mineral carbonation technologies to sequester CO <sub>2</sub> (2014) · cites this paper as [67]
Baciocchi et al. compared dry and wet routes; both achieved similar maximum conversion to carbonates (65%), corresponding to a potential CO2 storage capacity of 0.25 t per t-APC residue, but the dry route presented faster reaction kinetics.
“Although both routes achieved a similar maximum conversion to carbonates (65%), corresponding to a potential CO 2 storage capacity of 0.25 t per t-APC residue, the dry route presented faster reaction kinetics.67”
From A review of mineral carbonation technologies to sequester CO <sub>2</sub> (2014) · cites this paper as [67]
The E CO2 uptake of APC residues ranges from 7 to 25 wt% (0.07-0.25 t-CO2 per t-APC).
“The E CO 2 uptake of the APC residues ranges from 7 to 25 wt% (0.07-0.25 t-CO 2 per t-APC) 25,67,152,153,188 (Table 5).”
From A review of mineral carbonation technologies to sequester CO <sub>2</sub> (2014) · cites this paper as [67]
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References 19 · Cited by 67
- Authors
- Baciocchi, R., Costa, G., Polettini, A., Pomi, R., & Prigiobbe, V.
- Affiliations
- University of Rome Tor Vergata (IT)
- Sapienza University of Rome (IT)
- ETH Zurich (CH)
- Corresponding author
- Baciocchi, Renato
- Venue
- Energy Procedia
- Publisher
- Elsevier BV
- Published
- 2009-02
- Volume
- 1
- Issue
- 1
- Pages
- 4851-4858
- ISSN
- 1876-6102 (ISSN-L)
- OpenAlex
- W2025215336
- Cited by
- 67
- References
- 19
- Citations by year
- 2026: 6 · 2025: 6 · 2024: 8 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 4 · 2019: 2 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 4 · 2014: 5 · 2013: 3 · 2012: 4
- FWCI
- 8.92
- Type
- conference paper
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- Locations
- Energy Procedia (publishedVersion, cc-by-nc-nd)
- IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
- Padua Research Archive (University of Padova) (submittedVersion)
- INFM-OAR (INFN Catania) (submittedVersion, cc-by-nc-nd)
- Topics
- Physical Sciences › Environmental Science › Environmental Engineering › CO2 Sequestration and Geologic Interactions
- Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Keywords
- carbonation, air pollution control residues, waste incineration residues, CO2 sequestration, wet carbonation, combustion residues
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