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Mass Transfer and Reaction Engineering Lab
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The lab uses chemical engineering to study how fusion reactor fuel moves.
AboutAbout the lab
Developing next-generation energy from a chemical engineering perspective.
The Mass Transfer and Reaction Engineering Lab conducts research to develop next-generation energy systems, such as fusion reactors and hydrogen energy, from a chemical engineering perspective.
The lab investigates the behavior of tritium, the fuel of fusion reactors, from the viewpoint of mass transfer and reactions.
The lab also works on technologies that support a society that uses hydrogen.
On the lab's website, the lab is introduced under the name "Katayama-Edao Lab."
Key terms
- Tritium
- An isotope of hydrogen and a fuel for fusion reactors. It hardly exists in nature.
- Blanket
- A component placed inside the reactor surrounding the plasma. It produces tritium and recovers heat.
- Plasma-facing wall
- A protective material attached to the side facing the plasma to protect components inside the reactor.
- Chemical engineering
- The discipline that organizes production processes and rationally pursues optimal production systems.
NewsLab news
A doctoral student received the "Encouragement Award"
A master's student received the "Outstanding Major Award" of the Plasma and Quantum Science and Engineering Major
A master's student received the "Major Award" of the Plasma and Quantum Science and Engineering Major
A doctoral student's diagram of an experimental apparatus was selected as the cover of the Journal of Plasma and Fusion Research
A paper by Prof. Katayama and colleagues was published in Fusion Science and Technology
ResearchResearch themes
The lab investigates how tritium, the fuel of fusion reactors, moves near the blanket and the walls surrounding the plasma, from the perspective of chemical engineering, which deals with mass transfer and reactions. The lab also works on technologies that support a society that uses hydrogen.
*Illustrative imageRelease Behavior of Bred Tritium
The lab observes the release of tritium from solid and liquid lithium compounds and models it from a chemical engineering perspective. The ultimate goal is to predict how tritium produced under fusion reactor conditions will be released.
*Illustrative imageMass Transfer at Plasma-Facing Walls
The lab studies the complex mass transfer that occurs at walls facing the plasma. It tackles unresolved issues such as fuel particles trapped in redeposited layers and the behavior of tritium migrating into cooling water.
MembersFaculty
The members of the Mass Transfer and Reaction Engineering Lab consist of faculty, professors emeriti, academic researchers, technical staff, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorKazunari Katayama
- Associate ProfessorYuki Edao
- Assistant ProfessorShoichiro Kawase
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 (Element - 1)” James St. John / CC BY 2.0 (cropped)
- Release Behavior of Bred Tritium: “Gaseous tritium light source” Teravolt (talk) / CC BY 3.0 (cropped)
- Mass Transfer at Plasma-Facing Walls: “Tungsten (Element - 74)” James St. John / CC BY 2.0 (cropped)
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