Download PDF version

ClassNK has issued an Approval in Principle (AiP) for an Ammonia FSRU (Ammonia Floating Storage and Regasification Unit) jointly developed by Mitsui O.S.K. Lines, Ltd. (MOL) and Mitsubishi Shipbuilding Co., Ltd.

Ammonia, which does not emit CO2 during combustion, is projected to be widely used as a source of clean energy for decarbonisation, while the development of onshore facilities for storage and regasification is a challenge.

FSRU

FSRU is a floating facility designed for liquified gases and equipped with storage tanks and a regasification facility that receives liquified gas on the water, vaporises it, and sends it ashore.

FSRU has the advantages of lower costs and shorter construction periods than those of the equivalent facilities onshore. The Ammonia FSRU, developed by MOL and Mitsubishi Shipbuilding this time, applies this technology to ammonia. It is expected to contribute to the development of the ammonia value chain as an alternative carbon-neutral fuel.

Conceptual design

ClassNK carried out a review of a conceptual design of the Ammonia FSRU based on its Part N of Rules for the Survey and Construction of Steel Ships for ships carrying liquefied gases in bulk, “Guidelines for Floating Offshore Facilities for LNG/LPG Production, Storage, Offloading and Regasification” and the other relevant rules, and examined risk assessment taking into account the results of gas dispersion study.

Upon confirming it complies with the prescribed requirements, ClassNK issued the AiP. ClassNK will continue to contribute to advanced decarbonisation initiatives, including safety assessments.

Download PDF version Download PDF version

In case you missed it

NMDC and Wärtsilä Partner to Boost Efficiency and Uptime
NMDC and Wärtsilä Partner to Boost Efficiency and Uptime

With NMDC Group (NMDC), one of the largest dredging and marine contractors in the Middle East. The agreement represents a significant step forward in strengthening the partnership...

What are the latest maritime technology trends in decarbonisation?
What are the latest maritime technology trends in decarbonisation?

More than almost any trend, decarbonisation is driving the future of maritime. That reality alone makes decarbonisation the perfect topic for our first-ever Expert Panel Roundtable...

ABB's generator to enhance LNG carrier efficiency
ABB's generator to enhance LNG carrier efficiency

ABB has secured orders from shipbuilders in China and South Korea to equip 18 and 12 liquified natural gas (LNG) carriers, respectively, with permanent magnet shaft generator techn...

vfd