NEDO selects hydrogen-carbon nanotube feasibility study in Maibara Japan

Japan's New Energy and Industrial Technology Development Organization (NEDO) has approved a feasibility study in Maibara, Shiga prefecture, focusing on hydrogen and carbon nanotube production. The project involves six partners exploring the sequential use of hydrogen and the valorization of oxygen and waste heat.

The initiative will utilize hydrogen from water electrolysis as a carrier gas in carbon nanotube manufacturing. This process, led by Meijo Nano Carbon, is crucial for producing high-purity single-wall nanotubes. The hydrogen serves a technical role in the floating-catalyst chemical vapor deposition process, enhancing the efficiency and quality of the nanotubes.

The study aims to determine if valorizing co-produced oxygen and waste heat can improve the economics of hydrogen supply chains. The partners, including Chiyoda Corporation and Kansai Electric Power, plan to apply this model to other regions and sectors. The project is part of a public program dedicated to hydrogen society models, although specific details on capacity and investment remain undisclosed.

Founded in 2005, Meijo Nano Carbon specializes in high-purity nanotubes, primarily using the eDIPS process. The company has expanded its capacity to meet demand from semiconductor and battery manufacturers. The global carbon nanotube market is projected to grow significantly, with Japan's market expected to reach $678 million by 2035.

The project also explores the use of oxygen and waste heat in aquaculture. Research indicates that using oxygen instead of air in aquaculture can significantly increase energy efficiency. This approach could reduce hydrogen costs and improve the sustainability of fish farming operations.