著者

佐賀 清崇 柳田 高志 リュドミラ ベスピャトコ アウン ウィン 藤本 真司 美濃輪 智朗

出版者

一般社団法人 エネルギー・資源学会

雑誌

エネルギー・資源学会論文誌 (ISSN:24330531)

巻号頁・発行日

vol.32, no.6, pp.1-6, 2011 (Released:2019-08-08)

参考文献数

10

被引用文献数

2

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This study evaluates three bioethanol production pathways that are composed by saccarification and fermentation process (SFP), gasification and chemical synthesis process (GCP), gasification and biosynthesis process (GBP). These pathways are designed by process simulator PRO/II, and these material and energy balances are calculated. From the simulation results, the CO2 emission reduction of each process is evaluated. It becomes clear that the CO2 emission reduction of the process via syngas is larger than that of the process via sugars. The ethanol yield of GBP is the maximum, and GBP can support oneself a power and thermal energy in the process. In three processes, therefore, the CO2 emission reduction of GBP is the largest. The ethanol yield of SFP and GCP is almost the same. Because the residue including lignin contains moisture, the thermal energy from which SFP can be recovered is not large. On the other hand, GCP can use the thermal energy generated by chemical synthesis for the power production. It is indicated that GCP has the possibility of increasing the CO2 emission reduction more than SFP.

著者

塚原 建一郎 木村 多江 美濃輪 智朗 澤山 茂樹 柳下 立夫 小木 知子

出版者

公益社団法人日本生物工学会

雑誌

日本生物工学会大会講演要旨集

巻号頁・発行日

vol.11, 1999-08-16

著者

多田 千佳 柳田 高志 佐賀 清崇 ベスピャトコ リュドミラ バティスタ エルマー 藤本 真司 美濃輪 智朗

出版者

The Japan Institute of Energy

雑誌

日本エネルギー学会誌 (ISSN:09168753)

巻号頁・発行日

vol.88, no.10, pp.869-876, 2009

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The economic impacts, CO<SUB>2</SUB> emission, and change in industrial structures using rice husk power plant in Japan were investigated using input-output table of Japan. The direct and second economic impacts by investment to the rice husk power plant sector were 1.5 times higher than that to the power sector. The flow of money shifted to the agriculture, forestry and fisheries sector during introduction rice husk power plant. Increasing rate of using rice husk power plant induce the high-value added and the low CO<SUB>2</SUB> emission society with a very little change in industrial structure.

著者

伊佐 亜希子 藤本 真司 平田 悟史 美濃輪 智朗

出版者

公益社団法人 石油学会

雑誌

Journal of the Japan Petroleum Institute (ISSN:13468804)

巻号頁・発行日

vol.54, no.6, pp.395-399, 2011 (Released:2012-01-01)

参考文献数

19

被引用文献数

4 8

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微細藻類の実用的な炭化水素抽出技術であるヘキサン抽出法,水熱前処理を付加したヘキサン抽出法,超臨界二酸化炭素抽出法,およびDME抽出法の4通りの抽出技術で,同一のボツリオコッカス属の藻類脱水ケーキ(水分含量70 %)から炭化水素1 MJを抽出した場合の投入エネルギーを算出した。4通りの抽出技術で,文献値から設定した条件における投入エネルギーは0.73~1.83(MJ/MJ-炭化水素)の範囲で回収エネルギーの70 %以上を占めていた。投入エネルギー低減の観点から各抽出技術の問題点と改善点を考察し,湿藻体から抽出効率を高めるための研究開発,抽出媒体のロス率を最小限にする装置設計,および熱回収装置や動力回収装置の効率を高める技術開発が重要であることを明らかとした。

著者

多田 千佳 柳田 高志 佐賀 清崇 ベスピャトコ リュドミラ バティスタ エルマー 藤本 真司 美濃輪 智朗

出版者

一般社団法人 日本エネルギー学会

雑誌

日本エネルギー学会誌 (ISSN:09168753)

巻号頁・発行日

vol.88, no.10, pp.869-876, 2009 (Released:2009-11-24)

参考文献数

25

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The economic impacts, CO2 emission, and change in industrial structures using rice husk power plant in Japan were investigated using input-output table of Japan. The direct and second economic impacts by investment to the rice husk power plant sector were 1.5 times higher than that to the power sector. The flow of money shifted to the agriculture, forestry and fisheries sector during introduction rice husk power plant. Increasing rate of using rice husk power plant induce the high-value added and the low CO2 emission society with a very little change in industrial structure.

著者

朝野 賢司 美濃輪 智朗

出版者

一般社団法人日本エネルギー学会

雑誌

日本エネルギー学会誌 (ISSN:09168753)

巻号頁・発行日

vol.86, no.12, pp.957-963, 2007-12-20

被引用文献数

3

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This paper aims to make a trial calculation of lignocellulosic bioethanol production costs and CO_2 reduction costs in Japan. The following three are our conclusions. First lignocellulosic bioethanol potentials are very limited within the 50km radius which is the optimal transport distance economically and environmentally perspectives. The optimal size of bioethanol plants are: 20 million litter per year in the present case and 70 million litter per year in the innovative case. Secondly we estimate lignocellulosic bioethanol production costs including both the present case and the innovative case. In the innovative case, we use the following two factors: technological innovation factor in enzymatic breakdown and fermentation process, and plants up-scale factor. Bioethanol production costs (litter of petrol equivalent) are 98 Yen per litter in the present case, and 58 Yen/litter in the innovative case. Thirdly we calculate CO_2 reduction costs by bioethanol as a substitute petrol. Petrol costs range between 20 to 90USD per barrel. CO_2 reduction costs of the present case is 78, 000-150, 000 JPY/CO_2-ton, much expensive than the other CO_2 mitigation options. Regarding the innovative case, CO_2 reduction costs are 20, 000-30, 000 JPY/CO_2-ton only in high oil price 70 to 90USD/bbl.

著者

塚原 建一郎 木村 多江 美濃輪 智朗 澤山 茂樹 柳下 立夫 井上 誠一 小木 知子

出版者

公益社団法人日本生物工学会

雑誌

日本生物工学会大会講演要旨集

巻号頁・発行日

vol.12, 2000-07-10