Ammonia Carriers
Innovative and energy-efficient Ammonia Carriers, tailored to your needs for sustainable and cost-effective operations
Overview
Delivering excellence in Ammonia Carrier vessel design
As society transitions to reduce carbon emissions, FKAB contributes to the shift by designing innovative ammonia carriers. Ammonia plays a key role in global decarbonization as both an industrial feedstock and a clean energy carrier. These vessels require specialized cargo systems, cryogenic storage, and advanced safety solutions to handle hazardous and low-temperature cargoes. Our designs focus on energy efficiency, sustainability, and future-proof solutions that support the green transition. Additionally, we offer flexible designs that can be adapted to carry other cargoes, providing owners with greater versatility and operational opportunities.
OUR PROCESS
A streamlined process for exceptional results
Our proven design process ensures every vessel meets the highest standards of quality, functionality and sustainability.
1
Feasibility study
Evaluating design possibilities and operational needs with technical analysis.
2
Concept design
Collaborating to understand your unique requirements and define the vessel’s purpose and capabilities
3
Contract design
Delivering comprehensive and detailed specifications to guide accurate construction
4
Basic design
Documents for class & authority approval submission and information to ensure safety, functionality, performance and compliance with rules and regulations.
5
Detailed design
A more detailed and extensive set of documents than in Basic Design, intended for the yard to build their Production Design model.
6
Design support
Providing expert guidance for specialized and complex design requirements.
CASE STUDIES
Explore similar projects
Explore how FKAB Marine Design has delivered innovative and successful projects worldwide
Sustainability
Pioneering sustainable ship design
At FKAB, we are leading the way towards a more sustainable maritime industry. By combining innovative technology with eco-friendly solutions, we design vessels that reduce environmental impact, maximize efficiency, and ensure long-term sustainability. Our work sets a new standard that not only transforms the shipping industry – but also creates the conditions for other industries to adapt and evolve towards a more sustainable future.
CONTACT FORM
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FAQ
Answers to guide your maritime journey
What is an ammonia carrier?
An ammonia carrier is a gas carrier designed to transport liquefied ammonia (NH₃) in bulk. Ammonia can be carried refrigerated, pressurised or under a combination of pressure and refrigeration. The vessel is closely related to an LPG carrier but requires specific consideration of ammonia’s toxicity and material compatibility.
How is ammonia carried at sea — fully refrigerated or pressurised?
Ammonia can be transported fully refrigerated at approximately −33°C near atmospheric pressure, pressurised at higher temperatures, or semi-refrigerated using a combination of pressure and cooling. Fully refrigerated systems are generally suited to larger cargo volumes, while pressurised and semi-refrigerated solutions provide flexibility for smaller vessels and regional trades.
What is the difference between an ammonia carrier and an LPG carrier?
Ammonia and LPG can use similar gas carrier concepts, but ammonia requires additional consideration because of its toxicity and material compatibility. Copper, copper alloys and certain other materials are unsuitable for ammonia service, while gas detection, ventilation, containment and crew protection must be specifically designed for ammonia.
What safety systems does an ammonia carrier need?
Ammonia carriers require safety systems addressing its toxicity as well as other cargo hazards. These include gas and leak detection, emergency shutdown, ventilation, water spray systems, suitable refuge arrangements and dedicated crew protective equipment, together with the requirements of the IGC Code, class and flag.
Can an existing LPG carrier be converted to carry ammonia?
In some cases, an existing LPG carrier can be converted to carry ammonia, but a technical feasibility study is required. Cargo tanks, materials, piping, valves, cargo handling, ventilation and safety systems must be assessed for ammonia compatibility. Where extensive modifications are required, or the vessel has limited remaining lifetime, a newbuild may be more commercially attractive.
Innovation, passion, trust and reliability
Work with FKAB Marine Design to pioneer the next generation of sustainable shipping