Japan to showcase e-methane production using CO2 captured from Waste-to-Energy plant


A joint project by the City of Yokohama, Tokyo Gas and Mitsubishi Heavy Industries (MHI) Group will launch a demonstration project for carbon dioxide (CO2) capture from Waste-to-Energy (WtE) plant flue gas to produce sustainable methane (e-methane).

Having signed an initial Memorandum of Understanding (MoU) in 2022 and completed trial operations, the partners will begin the demo experiment in which CO2 is separated and captured from flue gas at the Tsurumi WtE plant using a system developed by MHI Group.

The captured CO2 will then be compressed and transported via container trailer to the Tokyo Gas Yokohama Techno Station to be used for methanation.

To produce methane – the main component of city gas – Tokyo Gas will react the CO2 with hydrogen at high temperatures over a catalyst, otherwise known as the Sabatier reaction.

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