The Mitsubishi Chemical Group (MCG) has launched a study chemically recycle of end-of-life tires (ELTs) by utilizing the coke ovens at its Kagawa Plant (Sakaide, Japan). The group aims to begin marketing sustainable carbon black made from ELTs by March 2026.
Along with the accelerating trend in the tire industry toward using sustainable raw materials, there is a growing need to use recycled carbon black, one of the main raw materials and a rubber reinforcing agent used in tires. By leveraging the MCG Group's supply chain, crushed ELTs can be fed as a raw material into its coke ovens and recover carbon black from the tar generated.
According to MCG research, this is the first attempt in the world to produce sustainable carbon black from ELTs using coke ovens. The sustainable carbon black produced has the same performance as conventional carbon black and can therefore be used again in new tires and hence contributes to a closed loop recycling of tires.
In preparation for commercialization, in July 2024, MCG started demonstration experiments where ELTs are fed into coke ovens. The aim is to sell sustainable carbon black at an annual rate of several thousand tons in fiscal 2025, and at an annual rate of tens of thousands of tons in fiscal 2030.
By establishing chemical recycling technology for ELTs, the MCG Group seeks to contribute to realizing a circular economy in the automobile and tire industries.
Image: Mitsubishi Chemical Group
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