Results of the project "Purification and purity control of CO2 gas in power cycles - CiCiMe"

The project ‘Purification and purity control of CO2 gas in power cycles’ (acronym CiCiMe) has been solved since the year 2019 and is going to be finished in 2025. Within the project, the information concerning possible impurities in CO2 and sCO2 power systems was summarised. On the basis of the information, the purification and purity control system for the sCO2 power system was proposed. The methods of impurities separation were tested and verified. The CO2 purification unit for the sCO2 experimental loop was designed and is under construction. Finally, the autoclave for material testing in sCO2 was constructed, and several tests were performed in the autoclave. The last test was carried out at a temperature of 300 °C and a total pressure of 25 MPa. After some improvements, the device is planned to be able to operate long-term at a temperature of 700 °C. The primary results of the CiCiMe project will be introduced at the conference.