KNCC Liquid CO2 Concept awarded with DNV GASA
Classification society DNV has awarded ILS client Knutsen NYK Carbon Carriers (KNCC) with a General Approval for Ship Application (GASA) certificate for their LCO2-EP tank system for the transportation of liquefied CO2 (LCO2).
In most decarbonization scenarios, carbon capture and storage (CCS) is an essential part of the pathway to net-zero emissions. To meet the Paris and Glasgow Agreement goals, would require the removal of 6–7 gigatonnes of CO2 from the atmosphere every year from 2050 onwards. A large proportion of this will need to be transported by ship, making CO2 transport a key part of the value chain of the emerging industry.
The LCO2-Eelevated Pressure “LCO2-EP” tank concept is based on a cylinder type CO2 containment system applying principles used in compressed natural gas (CNG) transportation. The CO2 is stored at ambient temperatures (0 to 10°C) in bundles of vertically stacked small-diameter pressure cylinders, rather than large cylindrical tanks at low temperatures. Transporting LCO2 in ambient mode will offer cheaper and less energy consuming solutions through the entire CCS value chain from capture to final storage. It also has great synergy for direct injection offshore from the LCO2 carriers as CO2 injection must be done at high pressure and supercritical phase of CO2. Moreover, the use of small diameter cylinders can mitigate the risk of pressure variations within the tubes, avoid dry-ice formation, and eliminate the sloshing effects of liquid CO2 in part or fully loaded condition.
KNCC is a joint venture established between NYKLine and Knutsen Group, for the technology and commercial development of LCO2 marine transportation and storage. KNCC aims to own/manage/operate LCO2 carriers to contribute to the realization of CCS projects globally.
ILS is KNCC’s Naval Architect partner.
https://www.kn-cc.com/news/press-release-06-06-2023
https://www.dnv.com/news/kncc-liquid-co2-concept-moves-forward-with-dnv-gasa-244351
ILS 3D visualization of KNCC CO2 Carrier picturing the LCO2-EP tank system and the Submerged Turret Loading (STL™) system. The CO2 carrier concept is designed by ILS in close cooperation with KNCC.
