2020 Fiscal Year Annual Research Report
Application of biochar supported Ni/Fe nanocomposites on feedstock recycling of waste plastics
| Project/Area Number |
20F20089
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| Research Institution | Tohoku University |
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Principal Investigator |
熊谷 将吾 東北大学, 環境科学研究科, 助教 (40757598)
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| Co-Investigator(Kenkyū-buntansha) |
MA CHUAN 東北大学, 環境科学研究科, 外国人特別研究員
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| Project Period (FY) |
2020-09-25 – 2023-03-31
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| Keywords | plastic / waste tire / pyrolysis / catalyst / debromination |
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| Outline of Annual Research Achievements |
We have prepared the different catalysts for catalytic pyrolysis of plastics. The co-pyrolysis of printed circuit board (PCB) and waste tire was conducted and the results have been summarized. We find that the co-pyrolysis of PCB and waste tire can be beneficial for the production of phenol and largely reduce the content of brominated compounds. The related work has been submitted to the international journal for review.
We attended the Pyro Asia Symposium 2020 on 11-13, December 2020, and gave a presentation. We rewarded the “YOUNG RESEARCH AWARD” at this symposium, furthermore we gave another invited lecture entitled “Migration of bromine during the pyrolysis of printed circuit boards”.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Firstly, we prepared the biochar by the fast pyrolysis of cedar wood. The Fe/biochar catalyst was synthesis using the impregnation method. Meanwhile, the one-pot synthesis of Fe/biochar was conducted by using the pre-impregnation of Fe ion into biomass and pyrolysis at 600 °C for 4h. Furthermore, the ZSM-5 and hierarchical ZSM-5, Fe loading hierarchical ZSM-5 was prepared by acid/alkali treatment for comparison.
The co-pyrolysis of PCB and waste tire was conducted and the results has been summarized into a paper.
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| Strategy for Future Research Activity |
We are conducting the fast pyrolysis and the catalytic pyrolysis of printed circuit board and waste tire. The main goals on the product quality and yield, and the migration behaviors of contaminants will be evaluated. The catalytic mechanisms on the degradation of plastics and the removal of contaminant will be comprehensively studied.
The regeneration and activation of catalysts will be conducted under different conditions. Different regeneration methods will be performed to optimize the regeneration conditions. The reactivity of regenerated catalysts for the pyrolysis-catalytic upgrading process will be evaluated.
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