MODEC LCO2 FSIU
Posted: Sat Sep 13, 2025 2:49 pm
MODEC has been awarded Approval-in-Principle from Bureau Veritas and ABS for LCO2 Floating Storage and Injection Unit (FSIU)
MODEC, Inc. (“MODEC”) has been awarded an Approval in Principle (AiP) from Bureau Veritas Marine & Offshore (BV) for a Floating Storage and Injection Unit “LCO₂ FSIU” that is capable to receive, temporarily store and ultimately inject carbon dioxide (CO₂).
The FSIU would be able to receive LCO₂ transported in low pressure condition, store, and inject it into subsea wells at high pressure for permanent sequestration, which eliminates a need for onshore LCO₂ receiving plant and pipeline to injection wells. The unit is engineered for a maximum CO₂ injection capacity of 10 million tonnes per annum (MTPA), with a minimum total tank storage capacity of 100,000 m³.
To support uninterrupted injection operation, the FSIU will feature both tandem loading at the aft and simultaneous side-by-side loading at the midship port side, enabling flexible and efficient LCO₂ transfer from LCO₂ carriers, up to 90,000 m3 capacity (tandem) and up to 50,000 m3 (side-by-side). The FSIU hull was developed in collaboration with Mitsubishi Shipbuilding Co. Ltd. (MSB), while the mooring system incorporates a SOFEC External Turret to allow dual loading operation as well as station keeping in non-directional environment as often found in Southeast Asia. The FSIU will also be equipped with diesel engine generators integrated with a carbon capture system on the topside, minimizing operational CO₂ emissions.
This concept was developed in collaboration with Mitsui OSK Lines Ltd. (“MOL”), to leverage their experience and market position with LCO₂ carriers and its proven methods of safe storage, transport and offloading.
By serving as an offshore storage and injection hub, the FSIU enables the sequestration of CO₂ into qualified reservoirs. By offering large-scale, flexible, and reliable offshore CO₂ storage, this solution supports the global transition to low-carbon energy.
MODEC, Inc. (“MODEC”) has been awarded an Approval in Principle (AiP) from Bureau Veritas Marine & Offshore (BV) for a Floating Storage and Injection Unit “LCO₂ FSIU” that is capable to receive, temporarily store and ultimately inject carbon dioxide (CO₂).
The FSIU would be able to receive LCO₂ transported in low pressure condition, store, and inject it into subsea wells at high pressure for permanent sequestration, which eliminates a need for onshore LCO₂ receiving plant and pipeline to injection wells. The unit is engineered for a maximum CO₂ injection capacity of 10 million tonnes per annum (MTPA), with a minimum total tank storage capacity of 100,000 m³.
To support uninterrupted injection operation, the FSIU will feature both tandem loading at the aft and simultaneous side-by-side loading at the midship port side, enabling flexible and efficient LCO₂ transfer from LCO₂ carriers, up to 90,000 m3 capacity (tandem) and up to 50,000 m3 (side-by-side). The FSIU hull was developed in collaboration with Mitsubishi Shipbuilding Co. Ltd. (MSB), while the mooring system incorporates a SOFEC External Turret to allow dual loading operation as well as station keeping in non-directional environment as often found in Southeast Asia. The FSIU will also be equipped with diesel engine generators integrated with a carbon capture system on the topside, minimizing operational CO₂ emissions.
This concept was developed in collaboration with Mitsui OSK Lines Ltd. (“MOL”), to leverage their experience and market position with LCO₂ carriers and its proven methods of safe storage, transport and offloading.
By serving as an offshore storage and injection hub, the FSIU enables the sequestration of CO₂ into qualified reservoirs. By offering large-scale, flexible, and reliable offshore CO₂ storage, this solution supports the global transition to low-carbon energy.