Site items in: Insights

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Emission performance of ammonia-fueled, four-stroke marine engines

Kevin Rouwenhorst June 03, 2025

We explore recent, full-scale, four-stroke engine testing results from IHI and Wärtsilä. Testing indicates N₂O emissions can be almost fully eliminated with catalytic treatment, and significantly lower NO_X emissions for engines running in ammonia mode, compared to running on diesel. While ammonia slip remains a key consideration due to the design of a four-stroke engine, catalytic treatment of the exhaust can eliminate even high concentrations, and release mitigation systems have already been designed and deployed to ensure safe operations.

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SalalaH2: export-focused renewable mega-project targets FID in 2026

Kevin Rouwenhorst May 21, 2025

In our May Episode of Project Features, OQ Alternative Energy Dutco joined us to discuss progress on SalalaH2, a renewable ammonia export project under development on Oman’s southwestern coast. Technical specifications, shared infrastructure, and further decarbonization of existing OQ assets at Salalah were explored.

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Emission performance of ammonia-fueled, two-stroke marine engines

Kevin Rouwenhorst May 06, 2025

We explore recent, full-scale, dual-fuel engine testing results from leading maritime vendors such as MAN Energy Solutions and WinGD. Testing indicates negligible emissions of the potent GHG N₂O (which can be fully eliminated with catalytic treatment), and significantly lower NO_X emissions for engines running in ammonia mode, compared to running on fuel oil or diesel. Overall, compliance with IMO Tier II and III emission limits is well within reach for the first generation of ammonia-fueled maritime engines.

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Ammonia fuel for industrial ceramics manufacturing

Kevin Rouwenhorst May 02, 2025

In the latest episode of Project Features, Foshan Xianhu Laboratory and Monalisa Group explored a recent demonstration of ammonia combustion for industrial fabrication of ceramic tiles in China. Retrofits of the gas-powered production lines, safe, low-emission ammonia combustion, a multi-level DeNO_X approach, target markets, and future ammonia fuel demand potential in China were discussed.

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Industrial demonstration of ammonia cracking: exploring global progress

Kevin Rouwenhorst April 16, 2025

Here, we explore the current demonstration landscape for large-scale cracking. To produce pipeline-quality hydrogen at future energy import hubs, industrial-scale ammonia cracking is still to be derisked and demonstrated, although certain parts of the overall process have been proven at scale. What are the technology elements to be considered, and who are the first-movers deploying the technology in a variety of global locations?

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EverWind Fuels: first-to-market ammonia exports from Canada’s Maritime provinces

Kevin Rouwenhorst February 20, 2025

To explore wind-based renewable ammonia production in Nova Scotia and lessons learned from the recently-finished FEED study for the Point Tupper project, EverWind Fuels and Black & Veatch joined Project Features this month. Discussion included a detailed breakdown of the lessons learned designing flexible hydrogen and ammonia production plants.

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Trinidad & Tobago: future production pathways for the world’s largest ammonia exporter

Kevin Rouwenhorst February 11, 2025

To explore Trinidad & Tobago' s existing ammonia production capacity and the new imperative to decarbonize, the Energy Chamber of Trinidad & Tobago and Argus Media joined Project Features last month. To maintain its market share in key export destinations and meet climate goals, Trinidad & Tobago has a series of decarbonized ammonia projects underway, including the use of wind, solar and gas-based CCS pathways.

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Decarbonizing urea production in India via renewable ammonia

Kevin Rouwenhorst December 02, 2024

Explore a new report from India-based non-profit iFOREST, which sets out a roadmap for the decarbonization of urea production in India. On the supply side, electrolysis deployment for ammonia production and pipeline deployment to couple industrial CO₂ emitters with existing urea production plants is key to reducing agricultural emissions.

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Ammonia Energy Conference 2024: Ammonia for Maritime Propulsion is full speed ahead!

Kevin Rouwenhorst November 26, 2024

During the recent 2024 Ammonia Energy Conference, we explored all the latest developments in ammonia-powered maritime propulsion. Engine makers reported strong progress ahead of deployment in 2026, the same year that large-scale vessels will hit the water. The panel explored early operations for the ammonia-powered A-Tug in Japan, as well as ancillary technology systems required for maritime ammonia engines, catalyst after-treatment systems for emission mitigation, and the potential for fuel additives to boost ammonia engine performance.

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First step in establishing Namibia’s renewable hydrogen and ammonia industry

Kevin Rouwenhorst November 21, 2024

In our October episode of Project Features, Hyphen Hydrogen Energy outlined its multi-phase, mega-scale renewable ammonia project set to be the first step in Namibia’s green industrialization pathway. Learn about current timelines and future expansion scope for the 2 million tons per year project, and how the physical infrastructure footprint has been carefully minimized to allow for its siting in the Tsau Khaeb national park.