CAS OpenIR
A renewable co-solvent promoting the selective removal of lignin by increasing the total number of hydrogen bonds
Yang, Yongqing1,2; Yang, Shaoqi1,2; Yao, Xiaoqian1; Kang, Ying1,2; Xin, Jiayu1,2; El-Tantawy El-Sayed, Ibrahim3; Xu, Junli1; Lu, Xingmei1,2,4,5
2020-10-07
Source PublicationGREEN CHEMISTRY
ISSN1463-9262
Volume22Issue:19Pages:6393-6403
Abstract

Due to their low cost and excellent solubility, functional ionic liquids (ILs) have been widely used in the pretreatment of lignocellulose. However, the high viscosity and harsh pretreatment conditions of ILs usually bring difficulties in separation and regeneration, hindering the large-scale use of ILs for industrial applications. To solve these problems, four sugar-platform renewable high boiling alcohol solvents (HBS) that can form hydrogen bonds with lignin were chosen as co-solvents. This confirmed that HBS not only have an effect on the interaction of ILs and lignin, but they also participate in the interaction of the co-solvent and lignin. The cation-anion interaction energy in 2-hydroxy-N-(2-hydroxyethyl)-N-methylethanaminium methanesulfonate ([BHEM]mesy) is weakened, but for hydrogen bond interactions, like IL-lignin and co-solvent-lignin, the energy is increased, as shown by a series of characterization and analysis studies. The system has advantages, like mild reaction conditions, low cost, renewability, high biomass pretreatment efficiency, and excellent cycling performance, which can increase the lignin removal ratio to 95.2%. The recycling and reusability were also evaluated and, after seven rounds, there was no significant reduction in activity. This work provides a promising large-scale sustainable biomass pretreatment strategy for biorefinery processes.

DOI10.1039/d0gc02319a
Language英语
WOS KeywordIonic Liquid ; Enzymatic-hydrolysis ; Biomass Pretreatment ; Steam Explosion ; Cellulose ; Saccharification ; Dissolution ; Fractionation ; Degradation ; Viscosity
Funding ProjectNational Key R&D Program of China[2018YFB1501600] ; National Natural Scientific Fund of China[21878292] ; National Natural Scientific Fund of China[21890762] ; National Natural Scientific Fund of China[21878314] ; K. C. Wong Education Foundation[GJTD-2018-04] ; Chinese Academy of Science[XDA21060300] ; Innovation Academy for Green Manufacture[IAGM2020C12]
WOS Research AreaChemistry ; Science & Technology - Other Topics
WOS SubjectChemistry, Multidisciplinary ; Green & Sustainable Science & Technology
Funding OrganizationNational Key R&D Program of China ; National Natural Scientific Fund of China ; K. C. Wong Education Foundation ; Chinese Academy of Science ; Innovation Academy for Green Manufacture
WOS IDWOS:000575015700010
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42261
Collection中国科学院过程工程研究所
Corresponding AuthorLu, Xingmei
Affiliation1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
3.Menoufia Univ, Fac Sci, Dept Chem, Menoufia, Egypt
4.Chinese Acad Sci, Innovat Acad Green Mfg, Beijing 100190, Peoples R China
5.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yongqing,Yang, Shaoqi,Yao, Xiaoqian,et al. A renewable co-solvent promoting the selective removal of lignin by increasing the total number of hydrogen bonds[J]. GREEN CHEMISTRY,2020,22(19):6393-6403.
APA Yang, Yongqing.,Yang, Shaoqi.,Yao, Xiaoqian.,Kang, Ying.,Xin, Jiayu.,...&Lu, Xingmei.(2020).A renewable co-solvent promoting the selective removal of lignin by increasing the total number of hydrogen bonds.GREEN CHEMISTRY,22(19),6393-6403.
MLA Yang, Yongqing,et al."A renewable co-solvent promoting the selective removal of lignin by increasing the total number of hydrogen bonds".GREEN CHEMISTRY 22.19(2020):6393-6403.
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