The effect of Ru/C and MgCl2 on the cleavage of inter- and intra-molecular linkages during cornstalk hydrolysis residue valorization

doi:10.1007/s10570-019-02799-x

	The effect of Ru/C and MgCl2 on the cleavage of inter- and intra-molecular linkages during cornstalk hydrolysis residue valorization
	Lv, Wei 1,2,4; Liao, Yuhe 3; Zhu, Yuting 1; Liu, Jing 1; Zhu, Changhui 1; Wang, Chenguang 1; Xu, Ying 1; Zhang, Qi 1; Chen, Guanyi 2; Ma, Longlong 1,2
刊名	CELLULOSE
	2020
卷号	27 期号:2 页码:799-823
关键词	Cleavage of linkage Biphasic EtOAc H2O solvents Ru C MgCl2 Cornstalk hydrolysis residue (CHR) Valorization
ISSN号	0969-0239
DOI	10.1007/s10570-019-02799-x
通讯作者	Wang, Chenguang(wangcg@ms.giec.ac.cn) ; Ma, Longlong(mall@ms.giec.ac.cn)
英文摘要	The cleavage of linkages of lignocellulose is important for its valorization. The linkage cleavage of cornstalk hydrolysis residue was investigated over catalysts (Ru/C + MgCl2) in EtOAc/H2O solvents. The results show that almost hydrogen bonds, C-C bonds, ether and ester bonds in the matrix of lignin and cellulose were broken, accompanying 80.6% of lignin and 98.5% of cellulose conversion, and obtaining 37.5% of aromatic monomers and 28.8% of lignin oligomers. In the reaction system, biphasic EtOAc/H2O solvents exhibited an effect on cleaving the intermolecular linkages between lignin and cellulose. MgCl2 showed limited abilities of breaking the alpha-O-4 and beta-O-4 linkages in lignin and limited beta-1, 4-glycosidic and hydrogen bonds in cellulose were cleaved over Ru/C catalyst. The cleavage of C-O linkages (alpha-O-4, beta-O-4, 4-O-5) and C-C bonds (alpha-beta, beta-5) in lignin were mainly dependent on Ru/C catalyst. Much C-O and the stubborn C-C linkages of beta-5, beta-1 and 5-5 were significantly disrupted by the synergistic effect between MgCl2 and Ru/C. However, MgCl2 exhibited great contribution to breakage of beta-1, 4-glycosidic linkage, hydrogen bonds and sugar ring of cellulose. The linkage of beta-1, 4-glycosidic, hydrogen bonds and C-C in C5/C6 sugars were significantly broken. The increased yield of products was evidently due to the synergistic effect of Ru/C combined with MgCl2.
WOS关键词	LIGNIN MONOMER PRODUCTION ; CATALYTIC DEPOLYMERIZATION ; ARYL ETHERS ; LIGNOCELLULOSE FRACTIONATION ; CARBOHYDRATE COMPLEXES ; HETEROPOLY ACIDS ; MODEL COMPOUNDS ; BOND-CLEAVAGE ; ZINC-CHLORIDE ; BIO-OIL
WOS研究方向	Materials Science ; Polymer Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000518503000017
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26589]
专题	中国科学院广州能源研究所
通讯作者	Wang, Chenguang; Ma, Longlong
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 2.Tianjin Univ, Sch Environm Sci & Engn, 92 Weijin Rd, Tianjin 300000, Peoples R China 3.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Celestijnenlaan 200F, B-3001 Heverlee, Belgium 4.Key Lab Biomass Energy & Mat, 16 5th Suojin Village, Nanjing 210018, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Lv, Wei,Liao, Yuhe,Zhu, Yuting,et al. The effect of Ru/C and MgCl2 on the cleavage of inter- and intra-molecular linkages during cornstalk hydrolysis residue valorization[J]. CELLULOSE,2020,27(2):799-823.
APA	Lv, Wei.,Liao, Yuhe.,Zhu, Yuting.,Liu, Jing.,Zhu, Changhui.,...&Ma, Longlong.(2020).The effect of Ru/C and MgCl2 on the cleavage of inter- and intra-molecular linkages during cornstalk hydrolysis residue valorization.CELLULOSE,27(2),799-823.
MLA	Lv, Wei,et al."The effect of Ru/C and MgCl2 on the cleavage of inter- and intra-molecular linkages during cornstalk hydrolysis residue valorization".CELLULOSE 27.2(2020):799-823.