九州大学 エネルギー研究教育機構

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Study on advanced microwave technology for utilization of carbon resources

Research outline

To achieve “Carbon Zero by 2050,” there is a strong need to promote decarbonization through the deployment of renewable energy and to enable the utilization and recycling of local resources such as waste plastics and unused agricultural biomass to reduce carbon dioxide emissions significantly. In our module, we will develop innovative technologies to convert carbon-based waste from industry and utilize it as a resource. The module will examine decomposition technologies for unused agricultural biomass by taking advantage of microwave-assisted catalytic reaction processes, such as rapid heating and the generation of high-temperature active sites. We aim to create a joint research center to consolidate and utilize the “knowledge” of catalytic chemistry, chemical engineering, and agriculture and promote collaboration with industry and other research institutions.

Schematic image of the research concept

Research originality

  1. The microwave heating process enables selective heating and rapid temperature rise and thus can construct an energy-saving process compared to conventional heating technologies.
  2. We design functional materials with controlled physical and catalytic properties that contribute to microwave heating to develop a highly efficient process for carbon resources.
  3. We can develop compact reactors for local production and local consumption.
Module members

Professor

Faculty of Engineering Sciences

Study on microwave-assisted catalytic reactions

Associate professor

Faculty of Agriculture

Microwave technology for biomass conversion

Associate professor

Faculty of Engineering

Development of new catalysis of inorganic materials

Associate professor

Institute for Materials Chemistry and Engineering

Pyrolysis, reforming and gasification of carbon resources including coal and biomass

Associate professor

Institute for Materials Chemistry and Engineering

Development of new electrostatic catalysis reaction

Assistant professor

Faculty of Engineering

Development of effective method for resin separation from carbon fiber reinforced plastic

Professor

Faculty of Engineering

Development of zero carbon ironmaking method
Expected results and outcomes of the collaboration

Through the module activities, we aim:

✓ To create a cross-departmental network to utilize Kyushu University’s human resources effectively.
✓ To systematize and utilize the University’s “knowledge” on using carbon-based resources.

In this module, researchers with in-depth knowledge and experience from the Faculty of Science and Engineering, the Faculty of Engineering, the Institute for Materials Chemistry and Engineering, and the Graduate School of Agricultural Science gather to build new technologies and educational systems by integrating different fields of study. We will exchange information and engage in free and vigorous discussions on multidisciplinary fields of study to create innovative technologies to utilize resources effectively. We will also break down the walls of existing organizations to form a platform for aggregating and utilizing knowledge about technologies for converting resources such as waste and biomass. In addition, we will collaborate on developing catalytic conversion technologies for agricultural waste utilizing microwaves (including radiofrequency, plasma, and electric fields). As for biomass-based waste resources, innovative processes will be developed by integrating the module members’ knowledge, experience, and technologies regarding conversion technologies for biomethane, waste cellulose, and lignin, which are livestock wastes.

Research results

(coming soon)

Representative research papers and achievements

Effect of Cobalt Substitution into Copper-Manganese Oxides on Enhanced Benzene Oxidation Activity

S. Ding, C. Zhu, H. Hojo, H. Einaga
Applied Catalysis B: Environmental
DOI: 10.1016/j.apcatb.2022.122099


Enhanced Catalytic Performance of Spinel-type Cu-Mn Oxides for Benzene Oxidation under Microwave Irradiation

S. Ding, C. Zhu, H. Hojo, H. Einaga
J. Hazard. Mater. 424, 127523 (2022).

[4] C. Zhu, S. Ding, H. Hojo, H. Einaga, “Controlling Diphenyl Ether Hydrogenolysis Selectivity by Tuning the Pt Support and H-donors Under Mild Conditions”, ACS Catalysis, 12661-12672 (2021).
[5] S. Tsubaki, Y. Nakasako, N. Ohara, M. Nishioka, S. Fujii, Y. Wada, “Ultra-fast pyrolysis of lignocellulose using highly tuned microwaves: Synergistic effect of a cylindrical cavity resonator and a frequency-auto-tracking solid-state microwave generator”, Green Chem., 22, 342-351, 2020.

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