P35-06 バイオマスの低温接触ガス化

概要

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The conventional methods of biomass gasification to hydrogen and synthesis gas have been carried out at high temperature. The purpose of this study is the development of the novel catalytic process for biomass gasification at low temperature (773-873 K) with high energy efficiency. We used the cellulose as the model compound of biomass, and batch- and continuous- feeding fluidized bed reactor. From the results of the reaction tests using various oxide supports and metal supported catalysts, it is found that Rh/CeO_2 exhibited higher performance than other catalysts. However, Rh/CeO_2 catalyst deactivated with time on stream because of the sintering of CeO_2 support. Furthermore, we have prepared Rh/CeO_2/SiO_2,which gave higher C-conversion to gas and was more stable than Rh/CeO_2. From the comparison of the performance with conventional methods, it is found that the novel catalytic gasification at much lower temperature is a highly energy-efficient process.
社団法人日本機械学会の論文
2002-06-14