No.48 Ni 担持褐炭触媒のバイオマスタール超低温改質特性(バイオマス(2))

概要

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Ni-loaded brown coal catalyst with 20 wt% of Ni content was synthesized, and their reforming property for biomass tar was evaluated at low temperature. The catalyst was prepared with impregnation method followed by heat treatment at various temperatures. Tar reforming testing was performed with a two-stage fixed bed reactor at 400, 500 and 600 ℃. Although tar reforming was promoted by increasing catalyst bed temperature, the performance high enough was obtained at 500 ℃ using the catalyst pretreated at 500 ℃. In addition, drastic performance enhancement was achieved at 400 ℃ by reducing the pretreatment temperature from 650 ℃ to 400 ℃. Transmission electron microscopy reveals that the drastic performance enhancement is attributed to the suppressed growth of Ni on the carbon support.
2012-10-15