ABS approves offshore LCO2 storage and injection unit

The American Bureau of Shipping (ABS) has granted approval to a liquefied carbon dioxide (LCO2) floating storage and injection unit (FSIU) developed by offshore platform supplier MODEC in partnership with shipping company Mitsui OSK Lines (MOL).

IMAGE: MODEC and MOL’s LCO2 FSIU concept. ABS

Designed to operate directly at offshore injection sites, the unit receives low-pressure LCO2 from transport carriers, compresses it into high-pressure storage, and then injects it into subsea wells for permanent storage. By moving this process offshore, the FSIU reduces dependence on land-based infrastructure and allows flexible deployment across multiple sites.

The unit is capable of injecting up to 10 million mt of CO2 per year and has a minimum tank capacity of 100,000 cbm. To limit its own emissions, it uses diesel generators integrated with onboard carbon capture technology.

Positioned as a key link in the global carbon capture, utilization, and storage (CCUS) chain, the FSIU offers a scalable solution that eliminates the need for onshore storage and injection facilities.

By Tuhin Roy

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