Impacts of Nickel Nanoparticles on Mineral Carbonation
This work presents experimental results regarding the use of pure nickel nanoparticles (NiNP) as a mineral carbonation additive. The aim was to confirm if the catalytic effect of NiNP, which has been reported to increase the dissolution of CO2 and the dissociation of carbonic acid in water, is capab...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/921974 |
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| author | Marius Bodor Rafael M. Santos Yi Wai Chiang Maria Vlad Tom Van Gerven |
| author_facet | Marius Bodor Rafael M. Santos Yi Wai Chiang Maria Vlad Tom Van Gerven |
| author_sort | Marius Bodor |
| collection | DOAJ |
| description | This work presents experimental results regarding the use of pure nickel nanoparticles (NiNP) as a mineral carbonation additive. The aim was to confirm if the catalytic effect of NiNP, which has been reported to increase the dissolution of CO2 and the dissociation of carbonic acid in water, is capable of accelerating mineral carbonation processes. The impacts of NiNP on the CO2 mineralization by four alkaline materials (pure CaO and MgO, and AOD and CC steelmaking slags), on the product mineralogy, on the particle size distribution, and on the morphology of resulting materials were investigated. NiNP-containing solution was found to reach more acidic pH values upon CO2 bubbling, confirming a higher quantity of bicarbonate ions. This effect resulted in acceleration of mineral carbonation in the first fifteen minutes of reaction time when NiNP was present. After this initial stage, however, no benefit of NiNP addition was seen, resulting in very similar carbonation extents after one hour of reaction time. It was also found that increasing solids content decreased the benefit of NiNP, even in the early stages. These results suggest that NiNP has little contribution to mineral carbonation processes when the dissolution of alkaline earth metals is rate limiting. |
| format | Article |
| id | doaj-art-61ce6be224e94e8ab4d11b09b60f2adb |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-61ce6be224e94e8ab4d11b09b60f2adb2025-08-20T03:34:52ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/921974921974Impacts of Nickel Nanoparticles on Mineral CarbonationMarius Bodor0Rafael M. Santos1Yi Wai Chiang2Maria Vlad3Tom Van Gerven4Department of Chemical Engineering, KU Leuven, 3001 Leuven, BelgiumDepartment of Chemical Engineering, KU Leuven, 3001 Leuven, BelgiumDepartment of Microbial and Molecular Systems, KU Leuven, 3001 Leuven, BelgiumDepartment of Environmental Engineering and Metallurgical Technological Systems, “Dunarea de Jos” University of Galati, 800201 Galaţi, RomaniaDepartment of Chemical Engineering, KU Leuven, 3001 Leuven, BelgiumThis work presents experimental results regarding the use of pure nickel nanoparticles (NiNP) as a mineral carbonation additive. The aim was to confirm if the catalytic effect of NiNP, which has been reported to increase the dissolution of CO2 and the dissociation of carbonic acid in water, is capable of accelerating mineral carbonation processes. The impacts of NiNP on the CO2 mineralization by four alkaline materials (pure CaO and MgO, and AOD and CC steelmaking slags), on the product mineralogy, on the particle size distribution, and on the morphology of resulting materials were investigated. NiNP-containing solution was found to reach more acidic pH values upon CO2 bubbling, confirming a higher quantity of bicarbonate ions. This effect resulted in acceleration of mineral carbonation in the first fifteen minutes of reaction time when NiNP was present. After this initial stage, however, no benefit of NiNP addition was seen, resulting in very similar carbonation extents after one hour of reaction time. It was also found that increasing solids content decreased the benefit of NiNP, even in the early stages. These results suggest that NiNP has little contribution to mineral carbonation processes when the dissolution of alkaline earth metals is rate limiting.http://dx.doi.org/10.1155/2014/921974 |
| spellingShingle | Marius Bodor Rafael M. Santos Yi Wai Chiang Maria Vlad Tom Van Gerven Impacts of Nickel Nanoparticles on Mineral Carbonation The Scientific World Journal |
| title | Impacts of Nickel Nanoparticles on Mineral Carbonation |
| title_full | Impacts of Nickel Nanoparticles on Mineral Carbonation |
| title_fullStr | Impacts of Nickel Nanoparticles on Mineral Carbonation |
| title_full_unstemmed | Impacts of Nickel Nanoparticles on Mineral Carbonation |
| title_short | Impacts of Nickel Nanoparticles on Mineral Carbonation |
| title_sort | impacts of nickel nanoparticles on mineral carbonation |
| url | http://dx.doi.org/10.1155/2014/921974 |
| work_keys_str_mv | AT mariusbodor impactsofnickelnanoparticlesonmineralcarbonation AT rafaelmsantos impactsofnickelnanoparticlesonmineralcarbonation AT yiwaichiang impactsofnickelnanoparticlesonmineralcarbonation AT mariavlad impactsofnickelnanoparticlesonmineralcarbonation AT tomvangerven impactsofnickelnanoparticlesonmineralcarbonation |