中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Direct liquefaction of sawdust under syngas with and without catalyst

文献类型:共享期刊论文

通讯作者Li, W , Chinese Acad Sci, Inst Coal Chem, State Key lab Coal Convers, Taiyuan 030001, Peoples R China.
学科主题Energy & Fuels ; Engineering
关键词Sawdust Liquefaction Catalyst Preparation Syngas Solvent
出处Chemical Engineering and Processing
发表日期2007
卷号46期号:3页码:187-192
产权排序[ 1 ] Chinese Acad Sci, Inst Coal Chem, State Key lab Coal Convers, Taiyuan 030001, Peoples R China ;[ 2 ] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
英文摘要Sawdust loaded with 1 wt.% Mo catalyst was liquefied in a 250 ml autoclave at 300 degrees C, initial gas pressure of 2.0 MPa and reaction time of 30 min in attempt to produce more liquid fuels. The effects of different catalyst preparation methods including mechanical mixing. impregnation and ultrasonic treatment with or without solvents on liquefaction were compared. The effect of atmosphere and temperature was also examined. The results show that the highest yield of oil and lowest yield of preasphaltene and asphaltene are obtained using the sample loaded catalyst with ultrasonic treatment than those with impregnation or mechanical mixing no matter with or without solvents due to the well dispersion of the catalyst. Solvent, especially a hydrogen-donor, plays an important role in sawdust liquefaction, while gaseous hydrogen itself displays less action in promoting hydrogenation reaction and enhancing catalyst ability. Gaseous hydrogen and catalyst do show significant functions in the presence of solvent. Higher temperature is favorable of thermal decomposition. hydrogenation and hydrocracking reactions. Based on the experimental results, a two-step liquefaction mechanism is proposed.
源URL[http://ir.yic.ac.cn/handle/133337/6740]  
专题烟台海岸带研究所_科研共享资源
推荐引用方式
GB/T 7714
. Direct liquefaction of sawdust under syngas with and without catalyst. 2007.

入库方式: OAI收割

来源:烟台海岸带研究所

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