092-583-7796

092-583-7793

PhD., Engineering

Chemical Reaction Engineering

(1) Research and education of chemical reaction engineering in carbonaceous resource conversion and carbonaceous materials
(2) Research and education of chemical engineering
(3) Promotion of Global COE Program (Novel Carbon Resource Sciences)
(4) Promotion of Program for Leading Graduate Schools Advanced Graduate Course in Global Strategy for Green Asia
(5) Activities in academic societies (eg., Director of Energy Division of The Society of Chemical Engineers, Japan (2007-2009), ember of Advisory Board of Energy & Fuels (an American Chemical Society Journal), 2010-present), Chair of Committee for Post-Vision of Society of Chemical Engineers, Japan (2011-2012), etc)
(6) Activities as an expert of chemical engineering (eg., member of committees in organizations such as Ministry of Economy, Trade and Industry, Japan (METI), and New Energy and Industrial Technology Development Organization, Japan (NEDO), a project leader of an R&D project on advanced integrated coal gasification combined cycles)
(7) Participation of R&D of industrial processes (eg., R&D projects on biomass or coal gasification for power generation or energy/material co-production)

Research Interests

• 1. Studies on pyrolysis, reforming and gasification of carbonaceous resources toward establishment of sustainable carbon cycle chemistry
  1.1. Analysis/modeling of detailed chemical kinetics, simulation of conversion of carbonaceous resources and reactor design
  1.2. Development of sequential thermochemical conversion of carbonaceous resources for coproduction
  1.3. Thermochemical conversion of carbonaceous resources utilizing nano-sized and sun-nano-sized spaces
  1.4. Low temperature gasification of solid fuel with maximized chemical energy recovery
  1.5. Development of method for producing high-quality carbonized solids and carbon materials from low-rank coal and biomass
  1.6. Development of pyrolysis and catalytic pyrolysis methods for chemicals production
  2. Chemical vapor deposition and infiltration for carbon material fabrication and reforming of heavy hydrocarbons
  keyword : Carbonaceous resources, coal, biomass, pyrolysis, carbonization, gasification, reforming, detailed chemical kinetics and mechanism, CVD, CVI, hydrogen, power generation, cogeneration, upgrading
  2009.03～2016.03.

Current and Past Project

• Design of Biomass Pyrolysis Process for Production of Tar-free Active Biochar
• Production of metallurgical coke with high reactivity and strength from low rank carbonaceous solid
• Development of advanced methods for converting low rank solid fuels into syngas, feedsctok for coke, binder and specialty chemicals by catalytic/noncatalytic reaction processes in sub
• This work aims at experimental proof of biomass pyrolysis at temperature up to 500 C with full recycling of heavy oil and resulting selective production of light-oil, in other words, that of bio-oil that contains no or little evaporation residue.
• Main purpose of this project is (1) to clarify characteristics of primary pyrolysis of pulverized coal and subsequent secondary reactions of nascent char and volatiles in CO2-containing atmosphere at temperature ranging from 1000 - 1300 degree-C and (2) to predict such characteristics by a model considering detailed chemical kinetics and mechanism.
• Main purpose of this project is to develop a process that is applicable to conversion of various types of woody/herbaceous biomass resources into clean carbonized solids (biochar) and tar-free/H2-rich syngas by means of Pyrocoking method.
• This project aims to develop elemental technologies such as low temperature coal gasification, novel reactor systems with high-density/high-velocity particles circulation, chemical recuperation of heat from gas-turbines/SOFC, which are indispensable to the next-generation coal gasification combined cycle power generation.

Academic Activities Membership in Academic Society

• The Society of Chemical Engineers, Japan
• The Japan Institute of Energy
• The Iron and Steel Institute of Japan (ISIJ)

Awards

• Best Paper Award in The Second International Symposium on Gasification and Its Application (iSGA 2011) Coproduction of Clean Syngas and Iron From Woody Biomass and Natural Goethite Ore. Shinji Kudo, Keigo Sugiyama, Koyo Norinaga, Chun-Zhu Li, Tomohiro Akiyama, Jun-ichiro Hayashi
• The following paper has been recognised in the "Top-75 most cited articles" as published in the IChemE journals 2006 - 2009:Gasification of low-rank solid fuels with thermochemical energy recuperation for hydrogen production and power generationJ.-I. Hayashi S. Hosokai N. Sonoyama Process Safety and Environmental Protection, Volume 84, Issue 6 B (2006), Pages 409-419
• Prof. Jun-ichiro Hayashi (Kyushu University) and Dr. Hiroyuki Uesugi (Biocoke Lab., Co. Ltd) have developed a technology for effectively converting biomass into tar-free gaseous and solid fuels, which is named Pyrocoking. The primary step of Pyrocoking is low-temperature rapid pyrolysis of biomass which produces the tar-free solid fuel (Biochar) and pyrolysis gas. The pyrolysis gas that contains tar vapor with a concentration as high as 900,000 mg/Nm3-dry is then reformed over a type of nanoporous soild such as Biochar, active alumina and nanoporous natural iron oxide. The tar vapor is quickly decomposed into light gases and carbon deposit (Biocoke). Biocoke can be used as smokeless clean solid fuel in ways similar to that for Biochar. Moreover, Biocoke-laden partially reduced iron ore is available as a type of raw material in local steel industry. Clean gas from the reforming contains tar with a concentration below 100 mg/Nm3-dry and directly available in IC engine cogeneration.Thus, Pyrocoking produces Biomass-derived carbonized solids and power/heat simultaneously.
• Formation of Carbon Nano-Capsules during Rapid Pyrolysis and Subsequent Steam Gasification of Brown Coal
• Modeling of Effect of Volatile Matter Cloud on Heterogeneous Ignition of Single Coal Particles
• Analytical Studies on Degradation of Coal Macromolecules and Development of a Lattice Model
• Studies on methods for tracing and controlling of flash coal pyrolysis

Educational Activities

Professional and Outreach Activities