Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processes
Abstract The challenge of cost-effective and efficient indirect carbonation processes is significant. This study aimed to address the limitations associated with alkaline additives, which are among the primary factors negatively affecting the economic viability of the indirect carbonation process. S...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-05-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-02118-4 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849325905701240832 |
|---|---|
| author | Won Jo Myoung-Jin Kim |
| author_facet | Won Jo Myoung-Jin Kim |
| author_sort | Won Jo |
| collection | DOAJ |
| description | Abstract The challenge of cost-effective and efficient indirect carbonation processes is significant. This study aimed to address the limitations associated with alkaline additives, which are among the primary factors negatively affecting the economic viability of the indirect carbonation process. Specifically, we evaluated the feasibility of replacing NaOH, a commonly used alkaline additive, with Ca(OH)2, a more cost-effective and safer alternative. Particular emphasis was placed on the potential production of fine-particle vaterite CaCO3, which, despite its high industrial applicability, poses production challenges owing to its inherent instability. Experiments were conducted to evaluate the impact of using Ca(OH)2, with and without sucrose, on the production yield, morphology, particle size, and purity of CaCO3, in comparison to NaOH. Despite the low solubility of Ca(OH)2, its combination with sucrose effectively stabilized pH levels and significantly enhanced CaCO3 yields. The addition of sucrose further increased supersaturation, aiding vaterite formation. Using Ca(OH)2 with sucrose resulted in a vaterite content exceeding 95%, similar to that achieved with NaOH. A cost analysis revealed that producing vaterite-type CaCO3 using Ca(OH)2 combined with sucrose required only 53% of the cost associated with NaOH, demonstrating its superior economic feasibility. These findings establish Ca(OH)2, particularly in combination with sucrose, as a viable alternative to NaOH in the pH swing process, providing cost savings, improved safety, and high-purity vaterite-type CaCO3 suitable for various industrial applications. |
| format | Article |
| id | doaj-art-6cb24293d2bd45408ad044e501eaa513 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-6cb24293d2bd45408ad044e501eaa5132025-08-20T03:48:18ZengNature PortfolioScientific Reports2045-23222025-05-0115111110.1038/s41598-025-02118-4Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processesWon Jo0Myoung-Jin Kim1Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean UniversityDepartment of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean UniversityAbstract The challenge of cost-effective and efficient indirect carbonation processes is significant. This study aimed to address the limitations associated with alkaline additives, which are among the primary factors negatively affecting the economic viability of the indirect carbonation process. Specifically, we evaluated the feasibility of replacing NaOH, a commonly used alkaline additive, with Ca(OH)2, a more cost-effective and safer alternative. Particular emphasis was placed on the potential production of fine-particle vaterite CaCO3, which, despite its high industrial applicability, poses production challenges owing to its inherent instability. Experiments were conducted to evaluate the impact of using Ca(OH)2, with and without sucrose, on the production yield, morphology, particle size, and purity of CaCO3, in comparison to NaOH. Despite the low solubility of Ca(OH)2, its combination with sucrose effectively stabilized pH levels and significantly enhanced CaCO3 yields. The addition of sucrose further increased supersaturation, aiding vaterite formation. Using Ca(OH)2 with sucrose resulted in a vaterite content exceeding 95%, similar to that achieved with NaOH. A cost analysis revealed that producing vaterite-type CaCO3 using Ca(OH)2 combined with sucrose required only 53% of the cost associated with NaOH, demonstrating its superior economic feasibility. These findings establish Ca(OH)2, particularly in combination with sucrose, as a viable alternative to NaOH in the pH swing process, providing cost savings, improved safety, and high-purity vaterite-type CaCO3 suitable for various industrial applications.https://doi.org/10.1038/s41598-025-02118-4VateriteCalcium hydroxidepH-swingSucroseIndirect carbonationAlkaline agent |
| spellingShingle | Won Jo Myoung-Jin Kim Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processes Scientific Reports Vaterite Calcium hydroxide pH-swing Sucrose Indirect carbonation Alkaline agent |
| title | Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processes |
| title_full | Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processes |
| title_fullStr | Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processes |
| title_full_unstemmed | Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processes |
| title_short | Enhancing the economic feasibility of vaterite production using calcium hydroxide in pH-swing processes |
| title_sort | enhancing the economic feasibility of vaterite production using calcium hydroxide in ph swing processes |
| topic | Vaterite Calcium hydroxide pH-swing Sucrose Indirect carbonation Alkaline agent |
| url | https://doi.org/10.1038/s41598-025-02118-4 |
| work_keys_str_mv | AT wonjo enhancingtheeconomicfeasibilityofvateriteproductionusingcalciumhydroxideinphswingprocesses AT myoungjinkim enhancingtheeconomicfeasibilityofvateriteproductionusingcalciumhydroxideinphswingprocesses |