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学科主题: 物理化学
题名: One-pot catalytic hydrocracking of raw woody biomass into chemicals over supported carbide catalysts: simultaneous conversion of cellulose, hemicellulose and lignin
作者: Li, Changzhi1;  Zheng, Mingyuan1;  Wang, Aiqin1;  Zhang, Tao1
通讯作者: 张涛
刊名: ENERGY & ENVIRONMENTAL SCIENCE
发表日期: 2012-04-01
DOI: 10.1039/c1ee02684d
卷: 5, 期:4, 页:6383-6390
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1501
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Multidisciplinary ;  Energy & Fuels ;  Engineering, Chemical ;  Environmental Sciences
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering ;  Environmental Sciences & Ecology
英文摘要: Using raw lignocellulosic biomass as feedstock for sustainable production of chemicals is of great significance. Herein, we report the direct catalytic conversion of raw woody biomass into two groups of chemicals over a carbon supported Ni-W2C catalyst. The carbohydrate fraction in the woody biomass, i.e., cellulose and hemicellulose, were converted to ethylene glycol and other diols with a total yield of up to 75.6% (based on the amount of cellulose & hemicellulose), while the lignin component was converted selectively into monophenols with a yield of 46.5% (based on lignin). It was found that the chemical compositions and structures of different sources of lignocellulose exerted notable influence on the catalytic activity. The employment of small molecule alcohol as a solvent could increase the yields of phenols due to the high solubilities of lignin and hydrogen. Remarkably, synergistic effect in Ni-W2C/AC existed not only in the conversion of carbohydrate fractions, but also in lignin component degradation. For this reason, the cheap Ni-W2C/AC exhibited competitive activity in comparison with noble metal catalysts for the degradation of the wood lignin. Furthermore, the catalyst could be reused at least three times without the loss of activity. The direct conversion of the untreated lignocellulose drives our technology nearer to large-scale application for cost-efficient production of chemicals from biomass.
关键词[WOS]: ETHYLENE-GLYCOL ;  HYDROGEN ;  METHANOL ;  DEPOLYMERIZATION ;  TRANSFORMATION ;  HYDROLYSIS ;  CHEMISTRY ;  MECHANISM ;  SULFUR ;  LIQUID
语种: 英语
WOS记录号: WOS:000301984200015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117904
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Li, Changzhi,Zheng, Mingyuan,Wang, Aiqin,et al. One-pot catalytic hydrocracking of raw woody biomass into chemicals over supported carbide catalysts: simultaneous conversion of cellulose, hemicellulose and lignin[J]. ENERGY & ENVIRONMENTAL SCIENCE,2012,5(4):6383-6390.
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