Direct Catalytic Hydrogenolysis of Kraft Lignin to Phenols in Choline-Derived Ionic Liquids

doi:10.1021/acssuschemeng.6b00620

	Direct Catalytic Hydrogenolysis of Kraft Lignin to Phenols in Choline-Derived Ionic Liquids
	Liu, Fei 1; Liu, Qiaoyun 1,2; Wang, Aiqin 1; Zhang, Tao 1
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2016-07-01
卷号	4 期号:7 页码:3850-3856
关键词	Kraft Lignin Hydrogenolysis Hydrolysis Choline-derived Ionic Liquids Phenols
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.6b00620
文献子类	Article
英文摘要	A new dual catalyst system composed of choline-derived ionic liquids (ILs) and Pd/C was developed for the selective hydrogenolysis of Kraft lignin to mono-phenols. Among a series of investigated choline-derived ILs, [Ch][MeSO3] displayed a strong acidity, good thermal stability, and excellent lignin solubility. Under the reaction conditions of the mass ratio of [Ch][MeSO3] to Pd/C being 1, the Pd/C loading of 3.5 wt %, H-2 pressure of 2.0 MPa, reaction time of 5 h, and temperature of 200 degrees C, the conversion of Kraft lignin and the selectivity to phenol (PL) and catechol (COL) reached 20.3%, 18.4%, and 18.1%, respectively. In order to rationalize the formation of PL and COL in our [Ch][MeSO3]-Pd/C system, the hydrogenolysis of a suitable lignin model compound (guaiacylglycerol-beta-guaiacyl ether) was studied under the same condition for Kraft lignin. The results suggested that the mechanism involved fragmentation of lignin catalyzed by both acid and Pd/C, followed by acid-catalyzed C-O and C-C cleavage of the fragmented compounds resulting in the formation of PL and COL.
WOS关键词	1-H-3-METHYLIMIDAZOLIUM CHLORIDE ; RENEWABLE CHEMICALS ; MILD CONDITIONS ; MODEL COMPOUNDS ; FORMIC-ACID ; WOOD LIGNIN ; DEPOLYMERIZATION ; BIOMASS ; VALORIZATION ; CELLULOSE
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000380291200032
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170322]
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
通讯作者	Wang, Aiqin; Zhang, Tao
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Fei,Liu, Qiaoyun,Wang, Aiqin,et al. Direct Catalytic Hydrogenolysis of Kraft Lignin to Phenols in Choline-Derived Ionic Liquids[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2016,4(7):3850-3856.
APA	Liu, Fei,Liu, Qiaoyun,Wang, Aiqin,&Zhang, Tao.(2016).Direct Catalytic Hydrogenolysis of Kraft Lignin to Phenols in Choline-Derived Ionic Liquids.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,4(7),3850-3856.
MLA	Liu, Fei,et al."Direct Catalytic Hydrogenolysis of Kraft Lignin to Phenols in Choline-Derived Ionic Liquids".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 4.7(2016):3850-3856.