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MARITIME CARBON RECYCLING WORKING GROUP MEETS IN JAPAN

Thursday, July 16, 2020 

Nine Japanese companies - EX Research Institute, Hitachi Zosen Corporation, Japan Marine United Corporation, JFE Steel Corporation, JGC Corporation, Mitsui OSK Lines, Nippon Kaiji Kyokai (ClassNK), Nippon Steel Corporation and Sanoyas Shipbuilding Corporation - have jointly started a Ship Carbon Recycling Working Group (WG) within Japanís Carbon Capture and Reuse (CCR) Study Group.

According to one of the participants, ClassNK, as the effects of climate change become apparent, carbon recycling, a method used to capture and reuse emitted CO2, is attracting attention as one of the paths to a decarbonised society.

The WG, which recently held its first meeting, aims to explore the feasibility of the concept of utilising methanation technology for zero-emission ship fuels. Through its activities, the WG aims to reduce greenhouse gas emissions to zero in sea transportation, which accounts for 99.6% of Japanese imports and exports, and thereby contribute to the formation of a sustainable society. The nine companies plan to assume a carbon recycling supply chain of methanation fuel that involves the supply of feedstock CO2, transportation of the feedstock, methanation, and conversion into marine fuel. They will calculate the estimated amount of CO2 emissions in the supply chain, and based on these results, identify technical challenges and develop a roadmap for its realisation.

The first stage of activities involves:

  1. Separation, capture and liquefaction of CO2 emitted from steelworks
  2. Transportation of liquefied CO2 by ship to a hydrogen supply site
  3. Generation of synthetic methane from CO2 and hydrogen by methanation reaction, and
  4. Liquefaction of the synthetic methane and using it as marine fuel.

In addition to obtaining an approximate value of CO2 emissions in this assumed supply chain, the group will identify challenges and decide whether to proceed with subsequent next-stage activities along with the content of those activities. The acquired knowledge will be widely disclosed inside  and outside the industry.

 

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