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学科主题: 物理化学
题名: Catalytic Hydrogenation of Corn Stalk to Ethylene Glycol and 1,2-Propylene Glycol
作者: Pang, Jifeng1;  Zheng, Mingyuan1;  Wang, Aiqin1;  Zhang, Tao1
通讯作者: 张涛
刊名: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
发表日期: 2011-06-01
DOI: 10.1021/ie102505y
卷: 50, 期:11, 页:6601-6608
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 ;  Technology
类目[WOS]: Engineering, Chemical
摘要: Catalytic Hydrogenation of Corn Stalk to Ethylene Glycol and 1,2-Propylene Glycol
研究领域[WOS]: Engineering
英文摘要: The use of whole lignocellulosic biomass as the feedstock for cellulose conversion is of great significance for large-scale, low-cost biomass conversion to biofuel and other useful chemicals. We recently achieved the direct conversion of cellulose (pure microcrystalline cellulose) into ethylene glycol at high yields over tungsten carbide catalysts. Here, corn stalk, an agricultural residue available in large quantities, was used as a lignocellulosic feedstock for conversion over nickel-promoted tungsten carbide catalysts under hydrothermal conditions and a hydrogen atmosphere. Nine different pretreatment methods were employed to convert the raw corn stalk to cellulosic feedstock with different chemical components and structures before the catalytic reaction. We found that corn stalks pretreated with 1,4-butanediol, NaOH, H(2)O(2), and ammonia produced much higher yields of ethylene glycol (EG) and 1,2-propylene glycol (1,2-PG) compared to raw corn stalks, whereas pretreatments with ethanol solution, hot water, hot limewater, and supercritical CO(2) just slightly improved the EG and 1,2-PG yields and corn stalk conversion. The hemicellulose in the corn stalk can be effectively converted to EG and 1,2-PG without hindering the cellulose conversion. In contrast, the lignin was resistant to degradation in the reaction and also inhibited EG and 1,2-PG production. The crystallinity of cellulose did not appear to have notable influence on the EG and 1,2-PG production. In view of the environmental benignity and low cost, pretreatment with ammonia and/or diluted H(2)O(2) solution might be a practical method for corn stalk conversion, after which the derived cellulosic feedstock is readily converted into EG and 1,2-PG at an overall yield of 48% in the reaction.
关键词[WOS]: ENZYMATIC-HYDROLYSIS ;  TRANSPORTATION FUELS ;  CELLULOSE CONVERSION ;  BIOMASS CONVERSION ;  CARBIDE CATALYSTS ;  IONIC LIQUID ;  RICE STRAW ;  LIGNIN ;  PRETREATMENT ;  HEMICELLULOSE
语种: 英语
WOS记录号: WOS:000290843900011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115786
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:
Pang, Jifeng,Zheng, Mingyuan,Wang, Aiqin,et al. Catalytic Hydrogenation of Corn Stalk to Ethylene Glycol and 1,2-Propylene Glycol[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2011,50(11):6601-6608.
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