アジア・オセアニア研究教育機構(Q-AOS)ポスターセッション

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10.Ogata Mari（Graduate School of Economics / Master's Course）
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comment 5
Production efficiency analysis of biodiesel fuel production plants in Japan

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Biodiesel fuel (BDF) is diesel fuel produced by vegetable oil. In Japan, the BDF is made of waste cooking oil. Recycling the waste oil can contribute to not only decreasing food waste but reducing CO2 emissions. A crucial problem is that BDF production plants largely rely on subsidies from local governments because the cost of producing BDF is normally larger than the BDF sales. To address this question, we used the detailed inventory data for the Japanese 39 BDF production plants and estimated production efficiency scores of the plant using data envelopment analysis (DEA).

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Title
application of this research
Comment
Interesting research. Do you know any other country/regions you can apply your study? In other words, do you know any other country which utilize waste cooking oil for biofuel? >In Japan, it is produced from waste cooking oil collected from businesses and households
Name
Assoc. Prof. Tanaka
Date
2021/10/18
Title
Question
Comment
In conclusion, it seems that it was pointed out that "economy of scale" is important, but considering that the start of this research was to reduce CO2, the increase in CO2 emissions due to the scale-up of factories It seemed necessary to consider the effects of CO2, but what about that point?
Name
Q-AOS
Date
2021/10/18
Title
Question
Comment
n conclusion, it seems that it was pointed out that "economy of scale" is important, but considering that the start of this research was to reduce CO2, the increase in CO2 emissions due to the scale-up of factories It seemed necessary to consider the effects of CO2, but what about that point? I'm sorry I made the same post due to a mistake.
Name
Q-AOS Atsushi TANAKA
Date
2021/10/18
Title
Reply to Prof. Tanaka
Comment
Thank you for your question. Various countries and companies such as China, EU, and Southeast Asia are producing BDF derived from waste cooking oil. This research can be applied to any region where waste cooking oil is generated.
Name
Mari Ogata
Date
2021/10/25
Title
Reply to Mr. Tanaka (Q-AOS)
Comment
Thank you for your question. Since this study focuses on technical efficiency based on the input of methanol and potassium hydroxide and the production of BDF, we do not consider CO2 emissions. However, as you have asked, as we expand the scale of the project, we can expect an increase in CO2 emissions due to an increase in the power consumption of the plant and other factors. As a future development of our research, we would like to evaluate not only the technical efficiency, but also the production efficiency of the factory production process itself, taking into account labor and capital, and the environmental performance, taking into account CO2 emissions. Thank you very much for your valuable comments.
Name
Mari Ogata
Date
2021/10/25