MODEC & Toyo Engineering: Approval in principle for CCS-based ammonia floating production
By Geofrey Njovu on March 11, 2025

Click to learn more. MODEC and TOYO Engineering are working towards a CCS-based floating production, storage and offloading unit. Source: MODEC.
The American Bureau of Shipping (ABS) has awarded Approval in Principle (AiP) to MODEC and Toyo Engineering Corporation for their design of a CCS-based ammonia Floating Production Storage and Offloading (“Blue Ammonia FPSO”) that will produce ammonia from the gas supplied by a proximally located vessel.
The FPSO will produce and store CCS-based ammonia using gas which has in the past been reinjected into the reservoir without specific applications. The system’s CCS facility will capture the CO2 arising from both the ammonia synthesis and gas turbine generators (GTG), ensuring minimal overall CO2 emissions from the process. The FPSO system’s hull, which will store and offtake the produced ammonia, was developed in partnership with Mitsubishi Shipbuilding.
The two parties intend to implement the concept through joint expertise. MODEC is experienced in overall layout, hull design and mooring technology, while TOYO is experienced in the ammonia production process and FPSO equipment design. The AiP is seen as an important vote of confidence and the developers will continue refining and maturing their design.
This announcement, and our recent report featuring SwitcH2 & CorPower Ocean, Samsung Heavy Industries, MISC & Gentari, indicate that the floating production, storage and offloading concept is gaining traction for both CCS-based and electrolytic ammonia production. The FPSO concept has conventionally been used in the oil & gas sector.