\n
Due to the Corona situation the seminar will be held virtually.
\nIf you wish to follow the seminar you will have to sign up by sending an e-mail to Christian Ove Carlsson cc@kt.dtu.dk
\nhereafter you will receive an invitation to join the virtual seminar.
\n
Abstract
\nFeCO3 is a natural occurring mineral. However, it is highly associated with CO2 corrosion in industrial processes, which leads to production losses and shutdowns due to maintenance. Besides being associated with corrosion issues FeCO3 is also a related to CO2 storage.
The CO2 corrosion initiates as gaseous CO2 dissolves in aqueous solutions and diffuses to the steel surface. Here it reacts electrochemically with iron. Fe2+ is released and reacts with the carbonates in the aqueous solutions to form FeCO3. Under the right conditions, FeCO3 precipitates on the steel surface and creates a protective barrier for further corrosion.
\nCarbonate mineralization occur when CO2-charged water is injected into basaltic rock here it promote the dissolution of basalt liberating Ca2+, Mg2+, and Fe2+ and precipitation of e.g. FeCO3 occurs.
\nDetailed information on the impact of CO2 on the FeCO3 solubility and the solubility of FeCO3 in aqueous solutions containing salts is needed to better predict the CO2 corrosion and understanding of carbonate mineralization. In this study, the solubility of FeCO3 is measured as a function of temperature, CO2 pressure, and salts (NaCl, KCl, CaSO4, HCl). Preliminary results show that the temperature has little to no impact on the solubility. The FeCO3 solubility is influenced by CO2. Results shows that the solubility increases up to CO2 pressure of approximately 1.5 bar where a maximum is reached.
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Due to the Corona situation the seminar will be held virtually.
\nIf you wish to follow the seminar you will have to sign up by sending an e-mail to Christian Ove Carlsson cc@kt.dtu.dk
\nhereafter you will receive an invitation to join the virtual seminar.
\n
Abstract
\nFeCO3 is a natural occurring mineral. However, it is highly associated with CO2 corrosion in industrial processes, which leads to production losses and shutdowns due to maintenance. Besides being associated with corrosion issues FeCO3 is also a related to CO2 storage.
The CO2 corrosion initiates as gaseous CO2 dissolves in aqueous solutions and diffuses to the steel surface. Here it reacts electrochemically with iron. Fe2+ is released and reacts with the carbonates in the aqueous solutions to form FeCO3. Under the right conditions, FeCO3 precipitates on the steel surface and creates a protective barrier for further corrosion.
\nCarbonate mineralization occur when CO2-charged water is injected into basaltic rock here it promote the dissolution of basalt liberating Ca2+, Mg2+, and Fe2+ and precipitation of e.g. FeCO3 occurs.
\nDetailed information on the impact of CO2 on the FeCO3 solubility and the solubility of FeCO3 in aqueous solutions containing salts is needed to better predict the CO2 corrosion and understanding of carbonate mineralization. In this study, the solubility of FeCO3 is measured as a function of temperature, CO2 pressure, and salts (NaCl, KCl, CaSO4, HCl). Preliminary results show that the temperature has little to no impact on the solubility. The FeCO3 solubility is influenced by CO2. Results shows that the solubility increases up to CO2 pressure of approximately 1.5 bar where a maximum is reached.
URL:https://www.cere.dtu.dk/calendar/2021/12/cere-seminar-by-randi-neerup DTSTAMP:20260525T071700Z UID:{28AF3E0B-1948-4801-9ED5-355857C09A52}-20211216T080000Z-20211216T080000Z LOCATION: Online END:VEVENT END:VCALENDAR