Fast tracking the conversion of dual fuel engines in existing offshore vessels to ammonia operation

The Apollo project will mature and demonstrate in operational environment, the disruptive conversion of a dual fuel main engine of an offshore supply vessel to ammonia operation (tri-fuel: 70% ammonia, 29% liquified natural gas and 1% marine gas oil), reducing emissions by 70%. The project is developed to closely answer the HORIZON-CL5-2022-D5-01-04 topic of transformation of the existing fleet towards greener operations through retrofitting (ZEWT Partnership). The specific objectives include: 1) Successful large-scale demonstration of the use of tri-fuel ICE (ammonia-based) in an existing vessel; 2) Complete first classification under DNV “Gas fuelled, Ammonia”; 3) 70% reduction of CO2 emissions and NOx emissions below 2.4 g/kWh from vessel operations; 4) Complete retrofitting solution for dual-fuel internal combustion engine to tri-fuel, through development of safe ammonia storage and operation, including both deck load or below deck tanks; 5) Demonstrate the retrofit in replicators in other two vessels with different use (dredging and offshore construction) and validate feasibility for scaling; 6) Support to the expansion of the ammonia bunkering network in the North Sea and beyond, obtain 100% green ammonia for the project’s needs; 7) Validated business case for ammonia as a ship fuel with operational expenditures