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NYK to build Japan’s first LNG-fueled tug

24 December 2013

NYK will build a tugboat featuring a dual fuel engine that can be powered by either liquefied natural gas (LNG) or heavy oil. Other than LNG carriers, this tugboat will be the first building in Japan of an LNG-fueled vessel.

In 2011, NYK established a team in the company’s Fuel Group to research next-generation fuel alternatives to heavy oil, and looked into building an LNG-fueled vessel with the cooperation of Nippon Kaiji Kyokai and others, based on the results of a survey conducted by the Japan Railway Construction, Transport and Technology Agency.

Image_of_main_engine
LNG propulsion system.

LNG received attention as a possible alternative to heavy oil because LNG does not emit any SOx and produces far less CO2 and NOx compared to heavy oil. Using LNG as a fuel will cut this tugboat’s emissions of CO2 by about 30%, NOx by about 80%, and SOx by 100% compared to using heavy oil.

This project will be subsidized by Japan’s Ministry of Economy, Trade and Industry and Japan’s Ministry of Land, Infrastructure, Transport and Tourism. Tokyo Gas Co. Ltd. will supply the LNG, and with the support of Tokyo Gas, NYK will make arrangements for a safe LNG supply system.

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