HD Hyundai Heavy Industries Builds World’s First Ammonia-Powered Gas Carrier

HD Hyundai Heavy Industries has successfully built the world’s first ammonia-powered vessel (photo). The company held a naming ceremony at its Ulsan shipyard for two 46,000-cubic-meter mid-sized gas carriers equipped with dual-fuel engines.
The two vessels, Antwerpen and Arlon, were named after cities in Belgium. They are the first and second of four ammonia-powered mid-sized gas carriers ordered by Exmar LPG France, a subsidiary of Exmar, in 2023 and 2024. The vessels will be delivered to the shipowner in May and late July, respectively, following final outfitting. Each vessel measures 190 meters in length, 30.4 meters in width and 18.8 meters in height, and is equipped with three cargo tanks designed and built using the company’s proprietary technology. The ships can safely transport liquefied gases such as ammonia and liquefied petroleum gas.

They are also fitted with a shaft generator that produces electricity using a propulsion system and a nitrogen-oxide reduction system to enhance environmental performance. Safety features include real-time ammonia-leak detection and emission-recovery systems.
Ammonia, a carbon-free fuel, can be stored in pressurized or low-temperature tanks without requiring ultra-low-temperature technology. When liquefied, it offers about 1.7 times higher storage density than liquid hydrogen, making it suitable for large-scale, long-distance hydrogen transport and storage.

 
 
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