Knutsen NYK Carbon Carriers (KNCC), a subsidiary of Japanese shipping company NYK and Norway’s vessel operator Knutsen Group, has received approval in principle (AiP) from classification society ClassNK for the design of liquefied CO2 carriers with elevated pressure cargo tanks (LCO2-EP) and a floating liquefied storage unit (FLSU).

The approved carrier design uses LCO2-EP cargo tank technology developed by KNCC to transport LCO2 in a stable state, and since there is no need to cool LCO2 to cryogenic temperatures, it is easy to handle and potentially reduce energy and costs during liquefaction, NYK said.