ClassNK has awarded Approval in Principle (AiP) for a liquefied CO2 carrier designed to support a floating offshore carbon capture and storage (CCS) injection facility. This vessel will operate with a Socket SPAR unit, a floating system proposed for deepwater deployment where traditional subsea pipelines are impractical.
The certification confirms the design’s regulatory and safety viability, as stated by ClassNK. This initiative is part of Japan’s Environmentally Friendly CCS Demonstration Project, which aims to explore offshore injection methods suitable for the country’s challenging seabed conditions.
Developed by Shin Kurushima Sanoyas Shipbuilding for Uyeno Transtech, the carrier’s design adheres to ClassNK’s steel ship construction standards and aligns with the International Gas Carrier (IGC) Code for transporting liquefied gases like CO2 and LNG.
Additionally, the approval includes verification of CO2 handling tests, addressing potential issues such as clogging in safety relief valves and piping due to CO2 solidifying into dry ice under specific conditions. ClassNK had previously issued an AiP for the Socket SPAR concept in 2023 as part of the ongoing CCS development efforts.
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