ClassNK Grants Approval for First Liquefied CO₂ Carrier Linked to Floating Offshore Injection Unit

Shinkurushima Sanoyas Shipbuilding has received the first approval in principle (AiP) from ClassNK for a liquefied CO₂ carrier intended for use with a floating offshore injection unit. This vessel design, part of Japan's CCS demonstration program, will transfer liquefied CO₂ to a 'Socket SPAR' for subsea injection. The AiP confirms compliance with safety and regulatory standards and addresses the behavior of CO₂ during transport. Trials showed stable handling of CO₂, indicating potential for long-distance shipping.

Published Mar 26, 2026

ClassNK has granted approval in principle (AiP) to Shinkurushima Sanoyas Shipbuilding for a liquefied CO₂ carrier designed for connection with a floating offshore injection unit known as 'Socket SPAR.' This vessel is part of Japan's Ministry of the Environment-supported carbon capture, transport, and storage (CCS) demonstration program.

AI-curated by Theia

The carrier will offload liquefied CO₂ to the SPAR, which injects it into subsea reservoirs. The AiP confirms the design meets safety and regulatory standards. Tests demonstrated CO₂ can be transported without clogging issues, supporting the viability of long-distance CO₂ shipping.