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Depolymerization of Organosolv Lignin over Silica-alumina Catalysts
Wu, Qing-yun1,2; Ma, Long-long1,2; Long, Jin-xing2; Shu, Ri-yang2,3; Zhang, Qi2; Wang, Tie-jun2; Xu, Ying2
2016-08-01
Source PublicationCHINESE JOURNAL OF CHEMICAL PHYSICS
Volume29Issue:4Pages:474-480
AbstractEfficient conversion of lignin to fine chemicals and biofuel become more and more attractive in biorefinery. In this work, we used a series of silica-alumina catalysts (i.e., SiO2-Al2O3, HY, H beta, and HZSM-5) to degrade lignin into arenes and phenols. The relationship between the catalyst structure and lignin depolymerization performance was investigated. The results showed that both acidity and pore size of the catalyst could influence the conversion of lignin. In the volatilizable product, phenols were identified as the main phenolic monomers via gas chromatography-mass spectrometer. SiO2-Al2O3 was the most efficient catalyst, giving 90.96% degree of conversion, 12.91% yield of phenols, and 2.41% yield of arenes in ethanol at 280 degrees C for 4 h. The Fourier transform infrared spectroscopy and H-1 nuclear magnetic resonance spectroscopy analysis demonstrated that deoxygenation and alkylation occurred in this process. The effect of solvents was also investigated and the results showed that ethanol was the most efficient solvent.
SubtypeArticle
KeywordLignin Sio2-al2o3 Phenols Deoxygenation Alkylation
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1063/1674-0068/29/cjcp1601017
WOS Subject ExtendedPhysics
WOS KeywordSOLID ACID CATALYSTS ; KRAFT LIGNIN ; CHEMICALS ; VALORIZATION ; HYDROGENOLYSIS ; ETHANOLYSIS ; EFFICIENT
Indexed BySCI
Language英语
Funding OrganizationNational Key Technology RD Program(2014BAD02B01) ; National Natural Science Foundation of China(51476178)
WOS SubjectPhysics, Atomic, Molecular & Chemical
WOS IDWOS:000383114400011
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11840
Collection中国科学院广州能源研究所
Affiliation1.Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wu, Qing-yun,Ma, Long-long,Long, Jin-xing,et al. Depolymerization of Organosolv Lignin over Silica-alumina Catalysts[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2016,29(4):474-480.
APA Wu, Qing-yun.,Ma, Long-long.,Long, Jin-xing.,Shu, Ri-yang.,Zhang, Qi.,...&Xu, Ying.(2016).Depolymerization of Organosolv Lignin over Silica-alumina Catalysts.CHINESE JOURNAL OF CHEMICAL PHYSICS,29(4),474-480.
MLA Wu, Qing-yun,et al."Depolymerization of Organosolv Lignin over Silica-alumina Catalysts".CHINESE JOURNAL OF CHEMICAL PHYSICS 29.4(2016):474-480.
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