Direct liquefaction of sawdust under syngas with and without catalyst

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	Direct liquefaction of sawdust under syngas with and without catalyst
	Wang G(王刚) ; Li, W (Li, Wen) ; Li, BQ (Li, Baoqing) ; Chen, HK (Chen, Haokan) ; Bai, J (Bai, Jin)
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
	2007
卷	46 期:3 页:187-192
收录类别	SCI
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.
文献类型	共享期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/6740
专题	科研共享资源
推荐引用方式 GB/T 7714	Wang G,Li, W ,Li, BQ ,et al. Direct liquefaction of sawdust under syngas with and without catalyst. 2007.

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