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

文献类型：期刊论文

作者Lv, Wei1,3,4; Liao, Yuhe2; Zhu, Yuting4; Liu, Jing4; Zhu, Changhui4; Wang, Chenguang4; Xu, Ying4; Zhang, Qi4; Chen, Guanyi3; Ma, Longlong3,4
刊名CELLULOSE
出版日期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
DOI10.1007/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
WOS记录号WOS:000518503000017
出版者SPRINGER
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.Key Lab Biomass Energy & Mat, 16 5th Suojin Village, Nanjing 210018, Jiangsu, Peoples R China
2.Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, Celestijnenlaan 200F, B-3001 Heverlee, Belgium
3.Tianjin Univ, Sch Environm Sci & Engn, 92 Weijin Rd, Tianjin 300000, Peoples R China
4.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
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.

入库方式： OAI收割

来源：广州能源研究所

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