Revised in April 2023

Energy Conversion Engineering and Fluidization Technology
Fushimi Lab. (Department of Applied Physics and Chemical Engineering, TUAT)
Tel: 042-388-7062, e-mail: cfushimi@cc.tuat.ac.jp, website: https://web.tuat.ac.jp/~cfushimi/
In Japan, we use ~0.66 t of natural gas, ~1.1 kL of oil, and ~1.4 t of coal per year per capita, resulting in the CO2
emission of ~8.3 t per year (i.e., ~13000 L per day) per capita (as of 2020). Considering resource depletion andclimate change, great increase in utilization of renewable energy and value addition of carbonaceous resource
utilization are strongly required. In our group, we have conducted the following research topics:
Topic 3: Reaction kinetics and hydrodynamics ofTopic 1: Development of reactors for thermochemical
fluidized beds
conversion of carbonaceous resources (pyrolysis,gasification, liquefaction, and esterification)
Topic 4: Development of value added thermal andbiomass power plants
Topic 2: Process development for biochemicals andbiofuels production

Development of reactors for thermochemical
conversion of carbonaceous resources(pyrolysis, gasification, liquefaction, and esterification)

Reaction kinetics and hydrodynamics offluidized beds

A bubbling fluidized bed
reactorHydrothermal liquefaction reactor for bio-oil
production and nutrients recovery from biomass,
small-scale batch reactor for chemicals
production from biomass

A newly developed reactor for flashhydrolysis of wet biomass

R. Usami, K. Fujii, C. Fushimi, ACS Omega, 5, 6684-6696, 2020
C. Fushimi, C. Tachibana, R. Usami, Int. J. Sus. Biomass Bioenergy 1, 1-5, 2018 and

C. Tachibana, C. Fushimi, Poster Award, 13th Biomass Science Symposium (JIE) 2018
C. Fushimi, M. Yazaki, R. Tomita, J. Taiwan Inst. Chem. Eng. 90, 68-78, 2018
C. Fushimi and A. Umeda, Energy & Fuels, 30, 7916-7922, 2016
C. Fushimi, M. Kakimura, R. Tomita, A. Umeda, T. Tanaka, Fuel Processing Technology 148, 282-288, 2016
S. Krerkkaiwan, C. Fushimi et al., Fuel Processing Technology, 115, 11-18, 2013

We have developed novel reactors for thermochemical conversion ofcoal and woody/algal biomass. We have also studied efficient bio-oil
production process with nutrients recovery from biomass, which isessential for future sustainable large-scale biomass utilization system.
We have also carried out experiments on chemicals production frombiomass by using a small-scale batch reactor.

Process development for biochemicals
and biofuels production

Schematic image ofcirculating fluidized bed gasifier
C. Fushimi, K. Yato et al., KONA Powder and Particle J. 38, 94-109, 2021
Chihiro Fushimi FY. 2019 Japan Institute of Energy, Academic Promotion Award, 2020
Y. Furusawa et al., Fuel Processing Technology 193, 304-316, 2019
W. Lian et al. Chemical Engineering Science 205, 259-268, 2019
S. Thangavel et al. J. Chemical Engineering of Japan 51, 342-348, 2018
H. Taguchi, Poster Award, 23rd Symposium on Fluidization and Particle Processing (SCEJ) 2017
C. Fushimi et al., Fuel Processing Technology 167, 136-145, 2017
Z. Zhao et al., Powder Technology 321, 336-346, 2017
M. Kobayashi, Poster Award, 22nd Symposium on Fluidization and Particle Processing (SCEJ) 2016
C. Fushimi et al., Advanced Powder Technology, 25, 379-388, 2014

Fluidization technology is widely used for continuous particle
processing in industry. We have designed and developed
conventional fluidized bed reactors and a novel downer pyrolyzer,
and analyzed hydrodynamic behaviors and reaction kinetics ofvarious fluidized beds. We have also investigated the temperaturechange and heat transfer rate of a bubbling fluidized bed reactor.

Development of value added thermal andbiomass power plants

Process flow diagram of Levulinic acid production from lignocellulose biomass byrecycling catalyst and waste byproducts

Block flow diagram of lipid production process by using hydrothermal liquefaction of algae
R. Ukawa-Sato, N. Hirano, C. Fushimi, Chem. Eng. Res. Des., 192C, 389-401, 2023
R. Ukawa-Sato, G. Guan, C. Fushimi, J. Chem. Eng. Jpn. 54, 620-629, 2021
K. Fujii, C. Fushimi, Excellent paper award , 8th Asian Conf. on Biomass Science (1st ranking) 2021
M. Yazaki, C. Fushimi, Energy Fuels 34, 9632-9642, 2020

M. Yazaki, C. Fushimi, Poster Award, 15th Biomass Science Symposium (JIE) 2019
R. Sato et al., APCChE 2019, Research Proposal on SDGs from Youth, Impact Award

We have developed total system for biochemical and biofuels production
from woody, algal and waste biomass so that we can greatly reduce total
CO2 emission and cost. We design a biorefinery process from the view
point of Green Chemistry, waste recycling. We also carry ourtechnoeconomic analysis of the developed process.

Biomass power plant integrated with afluidized bed thermal storage unit forflexible operation

Valorization of biomass utilization integrated
with variable renewable energy and energy
storage system for flexible operation

Uchino, T., T. Yasui, C. Fushimi, J. Energy Storage, 61C, 106720 (14 pages), 2023
Murakoshi, R. and C. Fushimi, J. Energy Storage, 55B, 105586 (16 pages), 2022
T. Uchino, T. Yasui, C. Fushimi, Energy Conversion Management, 243, 114366 (11 pages), 2021
T. Uchino, C. Fushimi, Chem. Eng. J. 419, 129571 (12 pages), 2021
C. Fushimi, Energy Fuels 35, 3715-3730, 2021
W. Yonamine, S. Thangavel, H. Ohashi, C. Fushimi, Energy Conv. Management 174, 552-564, 2018
R. Hoya, C. Fushimi, Fuel Processing Technology 164, 80-91, 2017

To greatly reduce CO2 emission from power generation sector, westudy further improvement of thermal efficiency of thermal andbiomass power plants. We also try to add new values of these plants
during non-steady state operation by combining variable renewableenergy for stable operation of the future power grid systems.