東北大学 · Materials Science
Shogo Kumagai 교수의 연구실은 폐플라스틱의 자원화를 핵심 목표로 하며, 특히 열분해(피로리시스)를 통한 플라스틱 재활용 기술 개발에 집중하고 있습니다. PET 등 고분자 플라스틱의 열분해 메커니즘과 촉매 반응 경로를 실시간 분석하는 터널형 마이크로리액터-GC/MS 기반의 온라인 모니터링 기술을 핵심으로 하며, 금속 산화물 촉매를 활용한 유해물질 저감 및 유용 화학물질 회수 기반의 지속가능한 플라스틱 순환 기술을 연구하고 있습니다. 특히, 폐플라스틱에서 유용 성분을 고순도로 분리·재생하는 첨단 분석 기반의 공정 설계가 특징입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Recycling of waste plastics is essential for reducing environmental degradation and ensuring future resource security. The quantity of domestic plastic waste recycled is increasing yearly, reaching 83 % in 2014. However, only 26 % and 4 % of the recycled waste plastic is treated by mechanical and feedstock recycling, respectively, whereas 70 % is treated by energy recovery (incineration). Therefore, the mechanical and feedstock recycling rates must be improved. This review examines the pyrolysis
Poly(ethylene terephthalate) (PET) pyrolysis products and those produced from their subsequent catalytic reactions under various metal oxides (ZnO, MgO, TiO2, and ZrO2) were evaluated qualitatively and semiquantitatively using a tandem μ-reactor gas chromatography–mass spectrometry (TR-GC/MS) system. The catalytic reaction products were analyzed in situ to determine the duration and temperature dependence of their production. In the TR-GC/MS, a reactor with two-tier, independent heat sources was
Online monitoring of products by a tandem μ-reactor-GC/MS system revealed the CaO catalysed PET pyrolysis pathway.
Recent focus on ocean plastics pollution, and the decision to ban waste plastic import by China have significantly impacted several industrial sectors around the world. Yet, the global waste plastic generation is steadily growing, which has driven substantial and rapid growth in worlds’ plastics recycling capacity to meet the needs for sustainable plastics use. In Japan, the Resource Circulation Strategy for Plastics was formulated in May 2019. One of the highlights of this Strategy was the mile
