The 43rd Hiroshima University Biomass Evening Seminar



Biomass Project Research Center, Hiroshima University, and HOSTY Association are co-organizing the Hiroshima University Biomass Evening Seminar. This seminar covers topics from the fundamentals of biomass to the latest information so that it can contribute the activities on biomass in this district. The 43rd seminar will be held as follows. Please join.

【Date & Time】



Thu.2, Jun,2016 16:20-17:50



【Place】



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

For the access to the venue, click here.

For the campus map, click here.

For the layout of the lecture rooms, click here. (Japanese page)



【Program】



Commentary: Yukihiko MATSUMURA (Professor, Institute of Engineering, Hiroshima University)

Chair: Thachanan SAMANMULYA (Special Postdoctral Reseacher,Hiroshima University)



◆Lecture: Warat KOSACARN

M2 Student, Graduate School of Engineering, Hiroshima University



“Effect of Cellobiose on Dissolution of Cellulose into Water under Hydrothermal Conditions ”



In this particular study, an objective is to continue investigating the effect of cellobiose on the dissolution of cellulose. Dissolution is to be carried out inside a continuous flow reactor under the following condition: Temperature of 260,290 and 320˚C while keeping pressure at 15MPa and flow rate at 20 mL/min. Cellulose powder with the weight of 0.5 g was loaded with cellobiose powder with the weight of 0.3 g in 1 L of water. The analyzer used are LD-particle size analyzer and total organic carbon analyzer to analyze the change in particle size of cellulose powder after hydrothermal pretreatment and to analyze the amount of carbon dissolved in liquid phase, respectively. The change in particle size of cellulose is detected. An increase in amount of cellubiose into the suspension could result in the hindered formation of oligomers which leads to the lower dissolution of cellulose.



◆Lecture: Obie Farobie

Specially Appointed Assistant Professor, Graduate School of Engineering, Hiroshima University

“Application of Spiral Reactor for Biodiesel Production in Supercritical Methanol and Ethanol: Process Evaluation”



In this study, process evaluation of biodiesel production in a spiral reactor using supercritical methanol and ethanol was conducted. The aims of this study are to compare the net energy ratio (NER) and energy efficiency for the production of biodiesel using supercritical methanol and ethanol, and to verify the effectiveness of the spiral reactor in terms of heat recovery efficiency. The analysis results revealed that the NER of 0.94 and 0.93 were obtained for production of biodiesel in supercritical methanol and ethanol, respectively. Meanwhile, the energy efficiency for both supercritical methanol and ethanol was equal, i.e., 0.98, indicating that the production of biodiesel in a spiral reactor for both process is an energy-efficient process.



◆Lecture:  Nattacha PAKSUNG

D2 Student, Graduate School of Engineering, Hiroshima University

“Supercritical Water Gasification of Tomato Residue”



In this study, we target on tomato residue produced in rural area of Kita-Hiroshima town, Hiroshima, as a feedstock for gas production via supercritical water gasification. The reactor type employed in this study is continuous reactor. The process efficiency was calculated based on thermodynamics and heat exchanger design. The tomato residue potential for the gas production was evaluated in terms of energy and environmental aspect.

※We will hold the discussion meeting from 18:00 (800 JPY needed). Join this meeting, too if you are available.



【Inquiries】

HOSTY Association (Graduate School of Engineering, Hiroshima University)

E-mail: bprc(AT)hiroshima-u.ac.jp(Please replace (AT) with @)


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