| Title | Improvement of CO2 absorption and inhibition of NH3 escape during CaCO3 precipitation in the presence of selected alcohols and polyols |
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| Author | Czaplicka, N; Dobrzyniewski, D; Dudziak, S; Jiang, C ; Konopacka-Lyskawa, D |
| Source | Journal of CO2 Utilization vol. 62, 102085, 2022 p. 1-12, https://doi.org/10.1016/j.jcou.2022.102085  Open Access |
| Image |  |
| Year | 2022 |
| Alt Series | Natural Resources Canada, Contribution Series 20220113 |
| Publisher | Elsevier |
| Document | serial |
| Lang. | English |
| Media | paper; digital; on-line |
| File format | pdf |
| Subjects | Science and Technology; fossil fuels; carbon dioxide; calcium carbonate; carbonate; absorption; waste management |
| Illustrations | tables; schematic representations; time series; bar graphs; cross-plots; diagrams |
| Program | Energy Geoscience Innovation and renewable energy - pore fluid implications |
| Released | 2022 06 14 |
| Abstract | This research aims to investigate the effect of selected organic substances containing hydroxyl groups on the reduction of NH3 escape and the improvement of CO2 capture during the precipitation of
calcium carbonate by carbonation method using post-distillation liquid from the Solvay process and gas stream containing CO2 in the amount corresponding to the exhausted gases produced by the combustion of fossil fuels. Glycerol, ethylene glycol
(EG), methanol, isopropanol, pentaerythritol, and neopentyl glycol (NPG) were used as ammonia escape inhibitors. The addition of NPG has been shown to result in the highest reduction of NH3 escape (83.1%) and the highest CO2 capture efficiency
(86.1%). During the proposed CaCO3 precipitation with NPG, 98.7% of the NH3 initially introduced into the reaction mixture remains in the solution. Furthermore, the features that should be taken into account when introducing various alcohols and
polyols for capturing NH3 and CO2 in the calcium carbonate precipitation via the carbonation method have been discussed. |
| Summary | (Plain Language Summary, not published)
This research investigates the effect of some alcohols on the reduction of NH3 escape and the improvement of CO2 capture during the precipitation of
calcium carbonate by carbonation method using Ca-rich brine water and gas stream containing CO2 in the amount similar to flue gas. The addition of neopentyl glycol was found to result in the highest reduction of NH3 escape (83.1%) and the highest CO2
capture efficiency (86.1%), better than glycerol, ethylene glycol, methanol, isopropanol, pentaerythritol. During the proposed CaCO3 precipitation with neopentyl glycol, 98.7% of the NH3 initially introduced into the reaction mixture remains in the
solution. |
| GEOSCAN ID | 330201 |
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