Full-scale research and development of "carbon recycling" that captures and utilizes CO2 October 14, 4:30
As the momentum for decarbonization is increasing, research and development of "carbon recycling" that recovers carbon dioxide and uses it for fuels and chemicals is in full swing among companies.
Of these, Kajima Corporation, a major general contractor, has developed a technology to absorb carbon dioxide in the concrete manufacturing process in collaboration with Chugoku Electric Power Co., Inc. and others.
By mixing the raw material cement with a compound of calcium or silicon, a chemical reaction occurs in the process of hardening the concrete, and carbon dioxide can be absorbed.
According to the company, it can absorb about 100 kg of carbon dioxide per cubic meter of concrete and has the same strength as ordinary concrete, so it wants to further improve the absorption efficiency and promote its spread.
"As carbon dioxide reduction becomes a global issue, our technology is seeing the light of day. We want to be at the forefront of the world with this technology," said Kajima Construction Senior Researcher Tsuyoshi Mistake.
In addition, Asahi Kasei, a major chemical manufacturer, has developed a plastic called polycarbonate using carbon dioxide as a raw material, and IHI, a major machine manufacturer, is also developing biofuel using algae that absorbs carbon dioxide as a raw material. The research and development of "carbon recycling" is in full swing, and the national government will provide financial support.