成果報告書詳細
管理番号20130000000895
タイトル*平成24年度中間年報 バイオマスエネルギー技術研究開発 戦略的次世代バイオマスエネルギー利用技術開発事業(次世代技術開発) 急速接触熱分解による新たなバイオ燃料製造技術の研究開発
公開日2015/4/25
報告書年度2012 - 2012
委託先名国立大学法人東京大学大学院工学系研究科 明和工業株式会社
プロジェクト番号P10010
部署名新エネルギー部
和文要約
英文要約Title: Bio-energy Technology Development Strategic Development of Next-genaration Bioenergy Utilization Technology Technology for the Production of New Biofuels Using Catalytic Fast Pyrolysis (FY2011-FY2014)FY2012 Annual Report

The goal of this project is to develop novel catalytic pyrolysis technology for the production of stable biofuels with high energy content.
1) A catalyst for upgrading of pyrolysis oil
Work on catalyst development is based on studies of hydrodeoxygenation (HDO) of cellulose and lignin model compounds on transition metal phosphides, which have been reported to have very high activity in hydrogen transfer reactions. For HDO studies, 2-methyltetrahydrofuran (2MTHF) and guaiacol were chosen as model compounds for cellulose and lignin, respectively. For guaiacol HDO, a supported Ni2P was found to be a stable catalyst and gave 80% guaiacol conversion with 60% HDO selectivity toward benzene. Cracking activity could be controlled by selecting metal component of phosphide catalysts. Moreover, Ni2P/SiO2 catalyst exhibited a remarkable activity for 2MTHF, which afforded 63% 2MTHF conversion and 94% HDO selectivity toward pentane and butane at 573 K.
2) Lab-scale production of biooil by catalytic fast pyrolysis and biooil analysis
Laboratory-scale production of biooil by fast pyrolysis and successive catalytic upgrading was demonstrated. Low oxygen content of biooil was obtained by using Ni2P catalyst for HDO from woody biomass (cedar chips). Oxygen contents were 32wt% and 12wt% for non-catalytic and catalytic system, respectively. Several analysis methods including GC-MS, NMR, IR and ESI FT-ICR MS were used to evaluate the quality of biooil. ESI-ICR MS revealed that pyrolysis oil without catalyst upgrading mostly contains C10-C17 compounds.
3) Process analysis
Process of biooil production in 10 t/d scale was analyzed by using simulation program. It was found that circulation rate of heating medium determines temperature of char combustor and 10-20 times higher than biomass feed rate. Maximum EROEI was estimated to be 70%. The cost for biooil production was found to be strongly affected by price of hydrogen and durability of the catalyst.
4) A fluidized bed reactor for catalytic fast pyrolysis
A fluidized bed type fast pyrolyzer having a capacity of 10-20 kg of biomass per hour was assembled and utilized for production of bio-oil. Circulation of sand and catalyst powder has been confirmed. Biooil was successfully obtained from cedar chips (particle size: ca. 2mm, moisture content: 11-12%) at 400-550 degree C, resulting in 42-65 wt% yield.
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