Two-step mineral carbonation using seawater-based industrial wastewater: an eco-friendly carbon capture, utilization, and storage process
- 2 Downloads
Carbon dioxide is contained in the flue gas of many industrial plants, including those producing cement and power, and makes a significant contribution to climate change. Thus, methods to reduce carbon dioxide emissions are under intensive investigation. Carbon capture, utilization, and storage (CCUS) is a technology for converting captured carbon into useful chemical compounds while reducing CO2 emissions. Thus, CCUS technology is a promising method for combating global warming. In this study, we focused on a mineral carbonation CCUS process using seawater-based industrial wastewater (SBIW). A two-step CCUS process using NaOH as an absorbent for CO2 capture was used to produce two types of metal carbonate. Inductively coupled plasma optical emission spectroscopy, X-ray diffractometry, thermogravimetric analysis, and field-emission scanning electron microscopy techniques were used for analysis. Using our new technique, we obtained high-purity NaHCO3 (92.2%) and MgCO3 ·3H2O (93%). We also found that it is possible to improve the utilization of the cations present in seawater.
KeywordsCarbon capture and utilization Carbon dioxide Mineralization Metal carbonates Sustainability
This research was supported by Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), financial resource was granted from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20174010201640) and also supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20152010201850).
- 1.The global average land–sea temperature. https://cdiac.ess-dive.lbl.gov/trends/temp/hansen/data.html. Accessed 29 Apr 2019
- 14.O’Connor WK, Dahlin DC, Nilsen DN, Walters RP, Turner PC (2000) Carbon dioxide sequestration by direct mineral carbonation with carbonic acid. In: Proceedings of the 25th international technical conf. on coal utilization and fuel systems, Coal Technology Assoc., Clear WaterGoogle Scholar
- 17.Monoethanolamine price. https://www.alibaba.com/showroom/monoethanolamine-price.html. Accessed 29 Apr 2019
- 25.Thieme, C. (2000) Sodium carbonates. In: Ullmann’s encyclopedia of industrial chemistryGoogle Scholar
- 26.Standard Gibbs free energy of formation. https://en.wikipedia.org/wiki/Standard_Gibbs_free_energy_of_formation. Accessed 29 Apr 2019
- 30.Yoo Y, Kang D, Choi E, Park J, Huh I-S (2019) Morphology control of magnesium carbonate for CO2 utilization using Mg2+ ions in industrial wastewater depending on length of alkyl chain of primary alkanolamine, reaction temperature, CO2 concentration, and Mg2+/Na+ ratio. Chem Eng J 370:237–250. https://doi.org/10.1016/j.cej.2019.03.209 CrossRefGoogle Scholar
- 31.Bonales LJ, Munoz-Iglesias V, Santamaria-Perez D, Caceres M, Fernandez-Remolar D, Prieto-Ballesteros O (2013) Quantitative Raman spectroscopy as a tool to study the kinetics and formation mechanism of carbonates. Spectrochim Acta A Mol Biomol Spectrosc 116:26–30. https://doi.org/10.1016/j.saa.2013.06.121 CrossRefGoogle Scholar