Biomass gasification in fluidized bed reactor with Co catalyst
- 作者：Kazuhiko Tasaka ; Takeshi Furusawa ; Atsushi Tsutsumi
- 关键词：Cobalt catalyst ; Steam gasification ; Biomass ; Tar ; Decomposition ; Fluidized bed reactor
- 刊名：Chemical Engineering Science
- 出版年：2007
- 期刊代码：18_00092509
- 类别：ce
- 出版时间：September-October 2007
- 卷：62
- 期：18-20
- 页码：5558-5563
- 文件大小：399 K
摘要
The catalytic performance of Co/MgO catalysts (Co loading of 0–36 wt%) for tar treatment in steam gasification of Radiata pine was investigated by means of the primary method using a fluidized bed reactor with Co/MgO catalyst as a fluidizing medium. Although the total amount of tar decreased with the presence of catalysts, water-insoluble components were found to increase while water-soluble components decreased. Among tested catalysts, 12 wt%Co/MgO catalyst was found to exhibit the best catalytic performance (carbon-base total tar conv. 16%) with the smallest increase of water-insoluble components. The results of tar conversion for steam gasification of biomass sample were compared with those of cellulose gasification. The different tendency of tar conversion between cellulose and biomass was attributed to different phase of tar contacted with catalyst. It was concluded that the catalyst with larger surface area exhibited higher conversion for the tar derived from steam gasification of biomass.