(Commonwealth) _ In a significant step towards sustainable maritime practices, Japan’s New Energy and Industrial Technology Development Organization (NEDO) has initiated a groundbreaking research competition aimed at developing devices to eliminate nitric oxide (N2O) emissions during the combustion of ammonia. Ammonia is increasingly recognized as a promising alternative fuel to address the challenges of decarbonization in the shipping industry. However, the crucial need to curb N2O emissions poses a new challenge that requires innovative solutions.
NEDO’s latest efforts, launched in November 2023, focus on fostering green technologies, and it has selected Hitachi Zosen and NYK (Nippon Yusen Kabushiki Kaisha) for their proposal in the “Next-Generation Ship Development” category. The collaborative project envisions the creation of an N2O Reactor, designed to serve as a catalytic removal system for N2O emissions on ammonia-fueled ships. The initiative is part of NEDO’s Green Innovation Fund Projects, underscoring the urgency and importance of developing eco-friendly solutions in the maritime sector.
Hitachi Zosen, renowned for its expertise in catalytic technology, especially in the development of marine vessel selective catalytic reduction (SCR) systems for removing nitrogen oxides (NOx) in marine engines, will lead the development of the N2O Reactor. The company’s role extends to crafting the device, catalysts, and control systems, initially tailored for a 2-stroke engine.
Highlighting the critical nature of controlling N2O emissions, the companies stress that the global warming potential of N2O is estimated to be approximately 300 times that of carbon dioxide (CO2). As such, reducing N2O emissions is imperative to realizing the potential of ammonia-fueled ships as highly effective contributors to greenhouse gas (GHG) emission reduction.
Collaborating with Hitachi Zosen, NYK will optimize the equipment layout for ship installation. ClassNK (Nippon Kaiji Kyokai), a leading classification society, will contribute its expertise by reviewing and verifying the design to ensure compliance with safety and performance standards. The project, set to commence this year, is scheduled to run through 2027.
NYK has ambitious plans to integrate the N2O Reactor, developed by Hitachi Zosen, onto an ammonia-fueled ship slated for delivery in November 2026. Beyond the development phase, NYK aims to conduct safety and performance verification through demonstration voyages, marking a crucial step towards the practical application of this innovative technology.
NYK, a trailblazing shipping company dedicated to pushing the boundaries of sustainable practices, has been at the forefront of exploring and embracing the potential of ammonia as a viable fuel source and for efficient ammonia transport. This commitment aligns with the industry’s broader efforts to address environmental challenges and foster cleaner, greener alternatives. Notably, NYK has taken significant strides by placing orders for several ammonia-ready transport ships, underscoring its role as a key player in the evolving landscape of the shipping sector.
In response to the growing demand for eco-friendly solutions and the pressing need for decarbonization, NYK is strategically positioning itself as a leader in this emerging segment. Ammonia, recognized for its potential as a clean and sustainable fuel, has garnered considerable attention as an alternative to conventional marine fuels.
The shipping industry, a major contributor to global emissions, has been under increasing pressure to transition towards greener practices. In this context, NYK’s initiatives to incorporate ammonia into its fleet highlight a visionary approach to staying ahead of regulatory changes and contributing to a more sustainable future.
The collaborative efforts between Hitachi Zosen and NYK, supported by NEDO’s Green Innovation Fund, represent a significant stride towards establishing ammonia as a viable and environmentally friendly fuel source in the maritime sector. By addressing the challenge of N2O emissions, this research initiative not only contributes to the industry’s broader decarbonization goals but also paves the way for a cleaner and more sustainable future for global shipping.
