Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

In order to thermally decompose a thermosetting plastic-containing persistent composite plastic waste represented by carbon fiber pipes, GFRP, solar panels, printed circuit boards, and waste tires, the present invention comprises: A) a thermal decomposition step for adding, to a thermal decomposition tank, a thermosetting plastic-containing persistent composite plastic waste which is a raw material to be subjected to a thermal process, and at least 20 wt%, preferably at least an equal amount, of a hydrogen-rich hydrocarbon-based plastic which is represented by PP and PE and which serves as a reaction accelerator, with respect to 100 wt% of the raw material to be subjected to a thermal process, causing a liquid phase-solid phase reaction to occur by holding the same at the melting point of the reaction accelerator for one to two hours, and then thermally decomposing the same through a gas phase-solid phase decomposition reaction by increasing the temperature to a thermal decomposition temperature to generate a hydrogen radical or a hydrocarbon radical from the reaction accelerator; and B) a recovery step for cooling and recovering a thermal decomposition oil obtained through thermal decomposition in the thermal decomposition tank; and, if needed, C) a separation step for washing, separating, and recovering metals, inorganic substances, or reinforcing fibers remaining in the thermal decomposition tank by using a glycol-based solvent. Here, examples of the hydrogen-rich hydrocarbon-based plastic include random cleavage or decomposition-type plastics represented by PE (LDPE or HDPE) and PP, which each have a high Arrhenius factor.

» Number: WO2025182127A1 (A1)

» Publication Date: 04/09/2025

» Applicant: EARTHRECYCLE CO LTD?[JP]

» Inventor: TACHIBANA TAKASHI?[JP]

» More Information

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