Ammonia

Wärtsilä introduces ammonia bunker fuel supply system for vessels

AFSS is an innovative and reliable system that enables the use of ammonia as a marine fuel, says firm.

Published

2 years ago

February 29, 2024

Admin

Wärtsilä introduces ammonia bunker fuel supply system for vessels

Wärtsilä Gas Solutions, part of technology group Wärtsilä, on Tuesday (27 February) introduced an Ammonia Fuel Supply System (AFSS) for ships able to operate with ammonia as a bunker fuel. The system is available for both liquid and gaseous fuel.

The Wärtsilä AFSS is an innovative and reliable system that enables the use of ammonia as a marine fuel.

In line with shipping’s transition to decarbonised fuels, ammonia is widely seen as one of the most promising new fuel candidates.

It offers a huge reduction in CO2 emissions, almost zero sulphur oxide (SOx) emissions, and similar reductions in nitrogen oxide (NOx) and particulate matter (PM) emissions.

“At Wärtsilä Gas Solutions we have more than 50 years’ experience in handling ammonia onboard ships,” said Stein Thoresen, Head of Sales Marine, Wärtsilä Gas Solutions.

“This experience, along with our deep understanding and development of high efficiency cargo handling systems in general, has led to the introduction of this system, which we see as a key enabler for decarbonised operations. The AFSS is designed to be robust and reliable, under even the most challenging sea conditions.”

The AFSS is suitable for both newbuilds and as a retrofit for existing vessels. It can be installed as an integrated cargo handling and fuel supply system on ships carrying liquified gas especially those able to trade ammonia as cargo, such as VLGC’s and MGC’s.

It can also be installed as a self-standing fuel supply system on IGF-coded vessels with either low or high-pressure systems, or a combination of both.

A system consisting of pumps and heat exchangers is used to supply the engine with a stable and reliable fuel flow, at the correct pressure and temperature.

The AFSS systems are equipped with proven components, including the necessary purge gas treatment system. Due to the need for high cleanness of the fuel, proper filtering is installed upstream and is embedded in the system.

The first Wärtsilä Ammonia Fuel Supply Systems will be installed on two new gas carriers being built at the Hyundai Mipo Dockyards (HMD) in Korea for Exmar LPG. These Medium Gas Carrier newbuilds will be the first ever oceangoing vessels to be propelled by dual-fuel engines capable of operating with ammonia.

Photo credit: Wärtsilä
Published: 29 February 2024

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Ammonia

EXMAR’s “ANTWERPEN” completes first commercial voyage using ammonia bunker fuel

During its voyage from China to India, the vessel achieved ammonia dual-fuel operation fully in line with our expectations and design, demonstrating that the technology works in commercial service.

Published

16 hours ago

July 21, 2026

Admin

EXMAR’s “ANTWERPEN” completes first commercial voyage using ammonia bunker fuel

Belgian shipowner EXMAR on Monday (20 July) announced the successful completion of gas carrier ANTWERPEN’s first commercial voyage using ammonia as a marine fuel.

During its voyage from China to India, the vessel achieved ammonia dual-fuel operation fully in line with our expectations and design, demonstrating that the technology works in commercial service.

“Together with our partners, we continue to fine-tune the systems as we build on this outstanding achievement. We are proud of our crew for their excellent pioneering work,” the company said in a social media post.

Developed in close collaboration with HD Hyundai Heavy Industries, WinGD, Nord Gas Solutions (formerly Wärtsilä Gas Solutions), and Lloyd’s Register, ANTWERPEN is capable of carrying up to 46,000 m³ of ammonia or LPG and trading with close to zero emissions when using low-carbon ammonia fuel.

The vessel meets and exceeds current IMO emissions reduction targets, reducing greenhouse gases by up to 90% compared to conventional ships.

Manifold Times previously reported ANTWERPEN participated in a pipe-to-ship (PTS) ammonia bunkering operation in Ulsan Port.

The operation was carried out by Lotte Fine Chemical Co Ltd with 600 metric tonnes (mt) of green ammonia (NH3) supplied to ANTWERPEN.

Photo credit: EXMAR
Published: 21 July, 2026

Alternative Fuels

KR, HD Hyundai tap first ammonia dual-fuel sea trial to develop vessel operating standards

Trial generated data on the vessel’s fuel supply system and engine, which will provide a technical foundation for KR’s future development of domestic guidelines for ammonia-fuelled ships.

Published

5 days ago

July 17, 2026

Admin

KR, HD Hyundai tap first ammonia dual-fuel sea trial to develop vessel operating standards

Korean Register (KR) on Tuesday (14 July) said it is collaborating with HD Hyundai Heavy Industries (HHI) to establish a domestic operating environment for ammonia-fuelled vessels under the Ministry of Oceans and Fisheries’ Green Shipping Corridor Construction Support Project.

The initiative supports the development of ammonia as one of the most promising next-generation marine fuels.

HHI recently conducted a sea trial of Korea’s first ammonia dual-fuel propulsion vessel. The trial generated operational data on the vessel’s fuel supply system and engine, which will provide a valuable technical foundation for KR’s future development of domestic guidelines for environmentally friendly vessel operations and supporting wider maritime decarbonisation efforts.

A spokesperson for HD Hyundai, said: “Drawing on our group’s R&D capabilities and on-site technical expertise, we have made meaningful progress in advancing the application of ammonia as a marine fuel. We expect this to help enhance a sustainable maritime ecosystem while strengthening the competitiveness of Korea’s shipbuilding industry.”

Kim Daeheon, Executive Vice President of KR’s R&D Division, added: “The close collaboration between KR and HD Hyundai has enabled us to build the technical foundation for introducing ammonia-fueled vessels in Korea. We will continue to drive national projects forward together with HD Hyundai and establish technical standards befitting the era of Green Shipping Corridors.”

Photo credit: HD Hyundai Heavy Industries
Published: 17 July, 2026

Bunker Fuel

Singapore: Bunker fuel sales up by 1.6% on year in June 2026

4.67 million mt of various marine fuel grades were delivered at the world’s largest bunkering port in June, up from 4.59 million mt recorded during the similar month in 2025.

Published

7 days ago

July 15, 2026

Admin

Sales of marine fuel at Singapore port increased by 1.6% on year in June 2026, according to data from the Maritime and Port Authority of Singapore (MPA).

In total, 4.67 million metric tonnes (mt) (exact 4,669,100 mt) of various marine fuel grades were delivered at the world’s largest bunkering port in June, up from 4.59 million mt (4,594,700 mt) recorded during the similar month in 2025.

Deliveries of marine fuel oil, low sulphur fuel oil, ultra low sulphur fuel oil, marine gas oil and marine diesel oil in June (against on year) recorded respectively 2.03 million mt (+19.4% from 1.70 million mt), 2.20 million mt (-4.8% from 2.31 million mt), zero (-100% from 1,900 mt), 1,900 mt (-57.8% from 4,500 mt) and zero (from zero).

Bunker Jun

Bio-blended variants of marine fuel oil, low sulphur fuel oil, ultra low sulphur fuel oil, marine gas oil and marine diesel oil in June, (against on year) recorded respectively 5,300 mt (-86.3% from 38,800 mt), 30,700 mt (-73.1% from 114,300 mt), zero (from zero), zero (from zero) and zero (from zero). B100 biofuel bunkers, introduced in February last year, recorded 1,500 mt (+50% from 1,000 mt).

LNG and methanol sales were 55,000 mt (-0.72% from 55,400 mt) and zero (from zero) respectively. There were no recorded sales of ammonia for the month and so far since 2025.

Photo credit: Maritime and Port Authority of Singapore
Published: 15 July, 2026