P223 貴金属担持アルミナフォームによる木質系バイオマス熱分解生成物のin-situ部分酸化(ポスター発表)

概要

論文の詳細を見る
In-situ catalytic partial oxidation of volatiles derived from rapid pyrolysis of cedar sawdust was studied with a two stage fixed bed reactor (TS-FBR) with the primary purpose to find a reactor configuration that enables to convert tarry components into non-condensable fuel gas efficiently. The TS-FBR consisted of two sections; the upstream one for the rapid pyrolysis of the sawdust to generate nascent volatiles and the downstream one for the in-situ reforming of the volatiles. A platinum or rhodium supported alumina foam was used as the catalyst and placed at the downstream section. It was found that the selectivity of oxygen consumption to tar conversion was greatly influenced by catalyst location. A simultaneous contact of the volatiles with the catalyst surface and mixing of the volatiles and oxygen within the foam enabled to get better conversion of tar as well as selectivity of syngas. More than 70% of hydrogen and 64% of carbon in the feedstock were converted into hydrogen and carbon monoxide, respectively, at an optimized condition of T=800℃, oxygen/carbon molar ratio=0.25, and contact time=100ms.
一般社団法人日本エネルギー学会の論文
2009-01-13