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発表 Demonstrative Study on the Production of Hydrogen and Aromatic Compounds Originated from Biogas in the Dairy Area

作成年度 2006年度
論文名 Demonstrative Study on the Production of Hydrogen and Aromatic Compounds Originated from Biogas in the Dairy Area
論文名(和訳) 酪農地域におけるバイオガスを起源とする水素と芳香族化合物の製造実証研究
論文副題
発表会 the 16th World Hydrogen Energy Conference (WHEC 16)
誌名(No./号数)
発表年月日 2006/06/13 ~ 2006/06/16
所属研究室/機関名 著者名(英名)
特別研究監主藤 祐功(SHUDO Yukoh)
特別研究監大久保 天(OHKUBO Takashi)
特別研究監秀島 好昭(HIDESHIMA Yoshiaki)
抄録
In this present work、 aiming at the technical establishment for the efficient energy supply and the demonstration of greenhouse effect gas reduction by using hydrogen and fuel cells、 the demonstrative experiments for the production of hydrogen and aromatic compounds from biogas which was generated from the large-scale centralized biogas plant were carried out. 200 Nm3/d of biogas was provided for the experimental facilities and 108 Nm3/d of the refined methane was introduced to the methane direct reformer. The dehydoaromatization reaction of methane generated hydrogen and aromatic compounds、 such as benzene. Moreover the un-reacted methane was introduced to the steam reformer for the production of hydrogen.In order to enrich the conversion rate of the methane direct reforming、 a part of the un-reacted methane was recycled as the material gas and in order to control coking at the direct reforming catalysts、 hydrogen addition which was 7% to 9% of the material gas was carried out. As the result of these experiments、 it was supposed that more than 9% hydrogen addition、 the reformation of pretreatment and carbonization and the repeated regeneration by hydrogen were needed to stabilize the formation rate of hydrogen and benzene. Furthermore、 108 Nm3/d of the generated hydrogen and the un-reacted methane were introduced to the steam reformer and 149 Nm3/d of 99.99% pure hydrogen was produced. With the result that the material balance of the experimental facilities (BTH-plant) was clarified and the output of hydrogen、 benzene、 electric power and heat could be calculated.
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