木質バイオマスの鉄触媒炭化による流体燃料と機能性炭素の併産(<特集>バイオマス転換技術-触媒の利用・開発の観点から-)

概要

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Wood loaded with 3% iron is carbonized at 500℃ to yield char together with liquid fuel fraction, and subsequently the 500℃-char is re-carbonized at 850℃ for obtaining both crystallized mesoporous carbon (CMC) and hydrogen-rich gas. This iron-catalyzed carbonization of wood carried out at 900℃ is evaluated in terms of fluid fuel production by comparing with corresponding 2% nickel-catalyzed and non-catalyzed carbonizations. The results showed that 3% iron loading exceeded non-loading in both the upgrading of oil and the production of hydrogen, and the effect of the former was almost equal to that of 2% nickel loading. For CMC, its post-treatments to produce practical electroconductive carbon and adsorbent for macromolecules in liquid phase are described to demonstrate the effectiveness.
2011-06-20