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26 Jan 2024

Japan to Launch First Ammonia-Fueled Ammonia Gas Carrier in 2026

26 Jan 2024  by offshore-energy   
Four Japanese companies — Nippon Yusen Kabushiki Kaisha (NYK), Japan Engine Corporation, IHI Power Systems, and Nihon Shipyard — have signed a series of contracts to build the world’s first ammonia-fueled medium gas carrier (AFMGC) equipped with Japan-made engines.

NYK

The contracts were finalized in December 2023.

To be built at the Japan Marine United Corporation (JMU) Ariake Shipyard, the 40,000 cbm type ammonia fuel ammonia carrier is scheduled for delivery in November 2026.

As explained, the completion of the vessel will be a significant step toward the realization of decarbonization in the maritime sector.

In October 2021, the four companies were selected by Japan’s New Energy and Industrial Technology Development Organization (NEDO) for its Green Innovation Fund Project, and together with Nippon Kaiji Kyokai (ClassNK), a partner organization, the five parties have been working on ‘a demonstration project for the commercialization of vessels equipped with a domestically produced ammonia-fueled engine’.

The four partners designed a prototype vessel that overcame challenges related to ammonia-fueled vessel design and development. The prototype vessel obtained an Approval in Principle (AiP) in September 2022 after a safety verification process that included confirmation of the safety concept and risk assessment by ClassNK. The acquisition of AiP is in anticipation of the approval of an alternative design.

After further research and development, the consortium determined that the prototype ship had reached a level sufficient for social implementation, particularly in safety and environmental friendliness, and decided to build the ship.

Toward the completion of the vessel in November 2026, the consortium will manufacture the main and auxiliary engines, begin detailed studies for the vessel’s construction, and prepare an operation manual for actual operation. After the ship is completed, the consortium will continue to operate the vessel for demonstration purposes to confirm the vessel’s performance, including environmental friendliness and the practicality of the operation manual, and to provide user feedback to shipbuilders and marine equipment manufacturers for further improvements.

Japan Engine Corporation will be in charge of the ship’s main engine, producing ammonia fuel dual-fuel two-stroke engine, while IHI Power System will provide the auxiliary engine.

Under the slogan ‘Changing the future of the sea and the future with Japanese technology’, Japan’s maritime industry is now in full swing to lead the world with the AFMGC toward its completion in November 2026, the companies said.

To achieve net-zero emissions in international shipping, switching from conventional fossil fuels to optimal next-generation fuels is essential. Since ammonia does not emit carbon dioxide (CO₂­­) during combustion, it is expected to be a next-generation fuel that contributes to preventing global warming.

Through the development and construction of the AFMGC, the consortium will contribute to the practical application of ammonia-fueled ships.

Ammonia, which has traditionally been chiefly used for fertilizer and other chemical raw material applications, is expected to be used for co-firing in thermal power plants and as a hydrogen carrier, and demand for ammonia is expected to grow rapidly in Japan and overseas. At the same time, demand for ammonia production and marine transportation will also increase, and an ammonia value chain is expected to be established sequentially.

Based on the belief that establishing a cleaner, less environmentally burdensome ammonia value chain is indispensable for realizing a decarbonized society, the consortium will work to complete and popularize the AFMGC and other ammonia-fueled ammonia carriers.

Surrounded by the sea, Japan depends on maritime transportation for more than 99% of its imports and exports of resources and food (by weight). The maritime industry is essential to Japan’s economic security. The maritime industry includes shipping companies that operate ships, shipbuilders that supply transport vessels, and marine equipment manufacturers, all of which are working to maintain and strengthen their international competitiveness.

The consortium sees fuel conversion to achieve zero emissions as an opportunity and aims to use the technological capabilities of the Japanese maritime cluster to supply ships with high environmental performance and safety ahead of other countries.

International rules for ships using ammonia as fuel are not yet in place, and the International Maritime Organization (IMO) is currently discussing the issue. This project is one of the first to develop ammonia-fueled ships, and the knowledge gained from the construction and operation of AFMGCs will be essential to the progress of discussions at the IMO.

The consortium aims to work closely with ClassNK and Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) to contribute actively to international rulemaking.

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