Thu., Oct. 3, 2024 16:20-17:50
Onsite & Online Hybrid

Engineering 110 Lecture Room, Higashi-Hiroshima Campus, Hiroshima University

If you are online, you need to apply.

Commentary: Yukihiko MATSUMURA
Professor, Graduate School of Advanced Science and Engineering, Hiroshima University


Lecture: Ken FURUTA
M1, Graduate School of Innovation and Practice for Smart Society, Hiroshima University
“Effect of Reaction Temperature on Catalytic Biodiesel Production Using Supercritical Methanol”

Our previous research shows that zinc oxide supported on carbon nanotubes (ZnO/CNT) catalyst can be used to improve biodiesel yields in supercritical methanol biodiesel synthesis. However, the effect of the reaction conditions have not been clarified. In this study, the effect of reaction temperature on biodiesel yield was clarified.


Lecture: Ryuya SHINAGAWA
B4, School of Engineering, Hiroshima University 
“Novel vertical reactor to achieve rapid heating of continuous flow of water”

Supercritical water gasification (SCWG) is an important technology for effective utilization of hydrous biomass and requires rapid heating to improve gasification efficiency. In this study, we propose a new vertical reactor in which the supercritical water gasification feed stream is heated by a nichrome wire. The reactor is designed to utilize a heating resistance wire directly powered by electricity. Heat transfer calculations allow us to consider the basic behavior of the reactor.


Lecture: Raito ARAKAWA
B4, School of Engineering, Hiroshima University 
“Reaction pathway of supercritical water gasification of xylose”

In the gasification of xylose, cyclic organic compounds including furfural are expected to be formed initially, followed by their decomposition into lower molecular weight acids and finally to gas.
However, reaction pathway of xylose has not been well elucidated. Considering glucose decomposition, epimerization, dehydration, and retro-aldol condensation are expected, but the reaction network has not clarified. Effect of catalyst on the reaction mechanism is further more unknown. The purpose of this study is to conduct xylose decomposition in hot compress water, and to determine the intermediates so that reaction network can be designed.


Lecture: Afiqah Liana Binti Sazali
D1, Graduate School of Advanced Science and Engineering, Hiroshima University
“Grouping Method to Understand Reaction Network for Hydrothermal Decomposition of Glucose”

In order to comprehend the general reaction properties of glucose in hydrothermal environments, this study has established a global reaction network that connects all available data. Through careful analysis of various temperature and reaction time conditions, the network successfully categorized each compound according to the specific type of reaction that generated it, be it ionic or radical. Classifying these factors can offer valuable insights and aid in optimizing process conditions.


Chair: Yukihiko MATSUMURA
Professor, Graduate School of Advanced Science and Engineering, Hiroshima University

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