Catalytic Hydrogenation of Corn Stalk to Ethylene Glycol and 1,2-Propylene Glycol

	Catalytic Hydrogenation of Corn Stalk to Ethylene Glycol and 1,2-Propylene Glycol
	Pang, Jifeng; Zheng, Mingyuan; Wang, Aiqin; Zhang, Tao
刊名	industrial & engineering chemistry research
	2011-06-01
卷号	50 期号:11 页码:6601-6608
ISSN号	待补充
通讯作者	张涛
产权排序	1,1
中文摘要	catalytic hydrogenation of corn stalk to ethylene glycol and 1,2-propylene glycol
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.
学科主题	物理化学
WOS标题词	science & technology ; technology
类目[WOS]	engineering, chemical
研究领域[WOS]	engineering
关键词[WOS]	enzymatic-hydrolysis ; transportation fuels ; cellulose conversion ; biomass conversion ; carbide catalysts ; ionic liquid ; rice straw ; lignin ; pretreatment ; hemicellulose
收录类别	SCI
语种	英语
WOS记录号	WOS:000290843900011
公开日期	2012-07-09
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/115786]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	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.
APA	Pang, Jifeng,Zheng, Mingyuan,Wang, Aiqin,&Zhang, Tao.(2011).Catalytic Hydrogenation of Corn Stalk to Ethylene Glycol and 1,2-Propylene Glycol.industrial & engineering chemistry research,50(11),6601-6608.
MLA	Pang, Jifeng,et al."Catalytic Hydrogenation of Corn Stalk to Ethylene Glycol and 1,2-Propylene Glycol".industrial & engineering chemistry research 50.11(2011):6601-6608.