Modifying MgO with Carbon for Valorization of Lignin to Aromatics

doi:10.1021/acssuschemeng.8b05237

	Modifying MgO with Carbon for Valorization of Lignin to Aromatics
	Lv, Wei 1,2,3; Zhu, Yuting 2,3; Liu, Jing 2,3; Wang, Chenguang 2,3; Xu, Ying 2,3; Zhang, Qi 2,3; Chen, Guanyi 1; Ma, Longlong 1,2,3
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2019-03-18
卷号	7 期号:6 页码:5751-5763
关键词	C-O ester cleavage beta-O-4 lignin-type dimers depolymerization C modified MgO acid-base property palladium catalyst
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.8b05237
通讯作者	Chen, Guanyi(chen@tju.edu.cn) ; Ma, Longlong(mall@ms.giec.ac.cn)
英文摘要	We developed a Pd-doped catalyst where the support MgO was modified with carbon species via methanol thermal annealing, catalyzing the cleavage of beta-O-4 lignin-type dimers and actual lignin into aromatics. Methanol as a carbon precursor was processed to a carbon species that was loaded with metallic palladium. The carbon species supported Pd on MgO surface changed the acid base strength and affected the catalytic activity of C-O bond hydrolysis/hydrogenolysis. The beta-O-4 linkage in dimer was effectively fractured over Pd/MgO-C, and catalyst's strong acid facilitated aldehyde decarboxylation to alkyl aromatics while relatively weak acid and strong base were highly selective for stable aromatics (such as 1-methoxy-4-propylbenzene and 1-methoxy-4-(propenlyl) benzene). This allowed Pd/MgO-C-700 to be successfully applied to pine depolymerization, to give 24.6 wt % of aromatics; in addition, almost beta-O-4 linkages were broken at 160 degrees C, and surprisingly, 77.2% of 2-methoxy-4-(propenlyl)phenols was obtained. The reaction pathways for lignin valorization are hypothesized over the Pd/MgO-C catalyst.
资助项目	NSFC (Natural Science Foundation of China) project[51606205] ; NSFC (Natural Science Foundation of China) project[51676191] ; NSFC (Natural Science Foundation of China) project[51536009] ; CAS Pioneer Hundred Talents Program
WOS关键词	CHEMICAL-VAPOR-DEPOSITION ; N-C CATALYST ; BOND-CLEAVAGE ; KRAFT LIGNIN ; IN-SITU ; BIO-OIL ; NICKEL NANOPARTICLES ; SELECTIVE OXIDATION ; ORGANOSOLV LIGNIN ; PHENOLIC MONOMERS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000461978200018
资助机构	NSFC (Natural Science Foundation of China) project ; CAS Pioneer Hundred Talents Program
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/24734]
专题	中国科学院广州能源研究所
通讯作者	Chen, Guanyi; Ma, Longlong
作者单位	1.Tianjin Univ, Sch Environm Sci & Engn, 92 Weijin Rd, Tianjin 300000, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Lv, Wei,Zhu, Yuting,Liu, Jing,et al. Modifying MgO with Carbon for Valorization of Lignin to Aromatics[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(6):5751-5763.
APA	Lv, Wei.,Zhu, Yuting.,Liu, Jing.,Wang, Chenguang.,Xu, Ying.,...&Ma, Longlong.(2019).Modifying MgO with Carbon for Valorization of Lignin to Aromatics.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(6),5751-5763.
MLA	Lv, Wei,et al."Modifying MgO with Carbon for Valorization of Lignin to Aromatics".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.6(2019):5751-5763.