July 28, 2023 – The City of Yokohama and Tokyo Gas Co., Ltd. (Tokyo Gas), together with Mitsubishi
Heavy Industries, Ltd. (MHI) and MHI Group company MHI Environmental & Chemical Engineering Co., Ltd.
(MHIEC), are to launch a demonstration experiment of a CO2 capture and utilization (CCU) process1 in which CO2 is separated and captured from the flue gas of a municipal waste-to-energy plant, and transported to a local methanation2 demonstration facility operated by Tokyo Gas to be used as feedstock for methanation. This CCU
demonstration experiment based on regional cooperation, conducted in Tsurumi-ku, Yokohama, is the first of its
kind in Japan, which will aim to practically introduce e-methane*3 in addition to improve and expand CCU
technology.

Tokyo Gas Press Release: 20230728-03e.pdf (tokyo-gas.co.jp)

City of Yokohama Press Release (Japanese): 20230728press.pdf (yokohama.lg.jp)

Mitsubishi Heavy Industries Press Release: Mitsubishi Heavy Industries, Ltd. Global Website | Launch of Demonstration Experiment for CO2 Capture from Waste-to-Energy Plant Flue Gas for Use in Methanation — Joint Project by the City of Yokohama, Tokyo Gas, and MHI Group to Establish a CCU Chain Based on Regional Cooperation —