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Green Process Engineering Lab
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The lab develops processes that produce hydrogen without emitting CO2.
AboutAbout the lab
Building processes for a low-carbon society.
The Green Process Engineering Lab researches technologies that reduce environmental impact, aiming for a carbon-neutral society.
It works on technologies that produce hydrogen from hydrocarbon resources while fixing the carbon, and on hydrogen utilization technologies using carbon-supported metal catalysts that the lab developed itself.
It is also developing new energy-saving processes that use active radical species.
Process development proceeds through both experiments and simulation.
Key terms
- Pyrolysis
- Heating a substance at high temperature to break it down into smaller molecules and solid carbon
- Methanation
- Reacting carbon dioxide with hydrogen to produce methane
- Fenton reaction
- A reaction in which iron ions and hydrogen peroxide generate hydroxyl (OH) radicals, which have extremely strong oxidizing power
ResearchResearch themes
To prevent global warming, technologies that strictly limit carbon dioxide emissions are needed. Fossil resources must be used efficiently while keeping emissions down, and waste must not simply be burned. To build a low-carbon society, the lab develops processes from three perspectives: suppressing carbon dioxide emissions, efficient hydrogen production, and innovative energy saving.
*Illustrative imageFixing carbon through pyrolysis
Pyrolysis of hydrocarbon resources yields hydrogen and other products along with stable solid carbon. The lab develops optimal conditions and processes for using a catalyst to convert methane, the main component of natural gas, into hydrogen and carbon nanotubes.
*Illustrative imageNew carbon-supported metal catalysts
The lab has made catalysts by incorporating metal ions into a resin and then carbonizing it, so that fine metal particles are finely dispersed. It is investigating their use for hydrogen production from formic acid and as materials that perform carbon dioxide capture and methanation at the same time.
*Illustrative imageControlling the Fenton reaction
The lab aims to control the Fenton reaction well so as to obtain high-value dicarboxylic acids from lignin, a biomass waste. It also studies how fuel cell membranes degrade through this reaction and has developed a degradation simulator.
MembersFaculty
The faculty of the Green Process Engineering Lab is Associate Professor Hiroyuki Nakagawa.
- Associate ProfessorHiroyuki Nakagawa
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Hydrogen fuel cell schematic” Emma Ambrogi / CC BY-SA 4.0 (cropped)
- Fixing carbon through pyrolysis: “Multi-walled carbon nanotube” Anna-Versh / CC BY 4.0 (cropped)
- New carbon-supported metal catalysts: “Carbon nanospikes ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Controlling the Fenton reaction: “Lignosulfonate” Silverchemist at English Wikipedia / CC BY-SA 3.0 (cropped)
- Related lab (Materials Analytical Chemistry Lab): “Moseley Hall Chemistry Lab” Mbrickn / CC BY-SA 4.0 (cropped)
- Related lab (Reaction Engineering Lab): “Toyota Mirai fuel cell stack and hydrogen tank SAO” Mariordo (Mario Roberto Durán Ortiz) / CC BY-SA 4.0 (cropped)
- Related lab (Functional Materials Chemistry Lab): “Ionic liquid anti-wear additive ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Related lab (Organic Molecular Transformation Lab): “Iron(III)-chloride-hexahydrate-sample” Benjah-bmm27 / Public domain (cropped)
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