An economic evaluation of recycling system in next-generation vehicles considering the risk of spilled eol to overseas

In recent years, the demand for rare resources used for high-tech products has been increased due to growing populations and industrial developments. Since rare resources are limited in producing countries, countries that cannot produce them at home are expected to become depleted. Therefore, it is important to keep resources by recovering and regenerating rare resources from End-of-life product (EOL). From this, the formation of a recycling-oriented society that considers regeneration to improve resource depletion and secure scarce resources is drawing attention. However, with a recycling business, the expense is required for recovery and reproduction of EOL. Therefore, it is necessary to estimate the cost by determining the location and recovery route of the recycling site. Furthermore, in order to maintain a high recovery rate, it is necessary to prevent and protect the risk of spilled EOL to overseas. Therefore, in order to continue maintaining a recycling business, after evaluating risk and economic efficiency in advance, it is necessary to design a system. Furthermore, the overseas outflow of many used products is caused in the pursuit of high profits in recent years. For that reason, the overseas outflow of EOL also causes the outflow of rare earth indispensable to manufacture of the high-tech machine included in used products. If foreign spills occur, countries that cannot produce rare earth in their own country will run out of resources. This lack of resources can reduce the productivity of high-tech products. In other words, if it not only can pursue the present profits but the risk and economic efficiency of a recycling business can be evaluated by taking future value into consideration, it will become possible to build the maintainable recycling system which foresaw the future. If it is possible to construct a recycling system for next-generation vehicles whose production number is increasing with CO₂ emission regulations and the trend of the times, overseas spills of rare earth such as neodymium are prevented and future recycling Business will be better. This study considers collecting rare earths from a next-generation car, and reproducing, and aims at performing economic efficiency evaluation with the risk of a new recycling business. In this study, some scenarios are set up and the knowledge to a future recycling business is given by evaluating risk and economic efficiency for each scenario.