Contributing to building a society with reduced environmental burden
Nippon Steel recycled 100% of plastic containers and packaging used and collected from households, using a coke oven and a chemical recycling method. Specifically, after thermal decomposition (in the coke oven), 40% is collected as hydrocarbon oil and recycled into plastic products; another 40% is collected as coke oven gas and used as energy at a power plant within a steelworks; and the remaining 20% is coke and used in the ironmaking process.
We have established a system to receive waste plastics from local governments nationwide and are handling about 200,000 tons per year, equivalent to roughly 30% of waste plastics collected all over Japan.
Our method of using coke oven has an extremely high recycling efficiency and a great treatment capacity, contributing to a circular economy in many regions. The cumulative amount processed in FY2000–2019 was approximately 3.28 million tons, equivalent to 10.50 million tons in terms of reduction in CO2 emissions.
Recently, we have begun to recycle chemical fibers and food trays mainly into plastic products, under the same recycling method. We intend to work on technology development such as efforts to increase processing capacity, in order to satisfy growing needs for plastic processing for environmental objectives.
Moreover, our plastic recycling plant in each steelworks is open for visits by the public. The East Nippon Works Kimitsu Area, being located close to the Tokyo Metropolitan Area, welcomed 8,650 visitors in FY2019, contributing to environmental education in the community.