O403 廃棄物系流動媒体を利用したバイオマスの接触分解ガス化(セッション4:技術〜ガス化・熱分解〜,口頭発表)

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Authors focus attention on biomass gasification for small or medium scale electricity generation (several hundred to several thousand kW). The main problem in biomass gasification is to realize an economical yet high-conversion process reducing tar formation in the downstream section. The authors suggested that waste house brick was able to used as bed material for tar reduction catalyst. In the present study, experimental results demonstrated by a pilot scale gasifier with a riser type circulating fluidized bed (height:3.5m, diameter:36.7mm) were analyzed based on the material balance. From the analysis house brick particles introduced oxygen from the regenerator into the gasifier. Increasing in oxygen introduced into a gasifier decreased tar formation. The introduced oxygen oxidized producer gas to reduce the energy conversion at the low O/C ratio. In high O/C ratio, however, partial combustion of char or coke on the catalyst was occurred to increase the energy conversion.
一般社団法人日本エネルギー学会の論文
2009-01-13