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CO2 capture in the form of thermally stable solid compoundsusing ammoniated brine |
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| รหัสดีโอไอ | |
| Creator | 1. Supaphorn Palitsakun 2. Anusorn Seubsai 3. Kandis Sudsakorn |
| Title | CO2 capture in the form of thermally stable solid compoundsusing ammoniated brine |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2562 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 41 |
| Journal No. | 5 |
| Page no. | 984-991 |
| Keyword | CO2 capture, stable solid compounds, ammoniated brine, desalination, modified Solvay process |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | Capture of CO2 in the form of thermally stable solid compounds is an interesting alternative for CO2 sequestration andutilization. In this study, CO2 capture using ammonia base absorbent in a bubble column reactor with various parameters (NaClconcentration, reaction temperature, CO2 flow rate, and ammonia concentration) was investigated. The precipitated products mainlyconsisted of thermally unstable [ammonia salts; e.g. NH4HCO3, (NH4)2CO3] and stable solid [NaHCO3, Na2CO3] products. Theresults revealed that increasing NaCl concentration and/or ammonia concentration or decreasing reaction temperature and/or CO2flow rate increased CO2 capture capacity and the amount of the stable solid products. Operating conditions set at 3.0 M of NaClwith 43 wt% of ammonia solution, a reaction temperature of 20 ?C, and a CO2 flow rate of 100 mL/min were found to provide themaximum NaHCO3 and Na2CO3 amounts of 20.67 wt% and 39.41 wt%, respectively. The stable solid products were alsocharacterized by SEM/EDS and XRD. |
