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Catalytic Hydrogenation Alcoholysis of Sawdust LiquefactionResiduesand Products Analysis(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2017年01期
Page:
86-
Research Field:
化学工程
Publishing date:

Info

Title:
Catalytic Hydrogenation Alcoholysis of Sawdust LiquefactionResiduesand Products Analysis
Author(s):
Yang Rui1; Wang Guohai1; Chen Jun2; Li Xiang2; 3
(1.NHWA R&D Center,Xuzhou 221009,China)(2.Kedah Fine Chemical Co.,Ltd.,Xuzhou 221011,China)(3.Key Laboratory of Coal Processing and Efficient Utilization,China University of Mining and Technology,Xuzhou 221008,China)
Keywords:
sawdust; alcoholysis; residue; catalytic hydrogenation
PACS:
TK6
DOI:
10.3969/j.issn.1672-1292.2017.01.013
Abstract:
The catalytic hydrogenation alcoholysis of sawdust liquefaction residues with methanol as solvent and Mg2Si as catalyst is investigated,the influences of reaction temperature and time on bio-oil yield of sawdust liquefaction residue are examined. The alcoholysis residue is characterized by themogravimetry,scanning electron microscope,and element analysis. The composition and properties of bio-oil are determined by gas chromatography-mass spectrometry. The results show that the bio-oil yield reaches a maximum of 46.2% at 290 ℃ after reaction for 2 h. The components of cellulose and lignin in sawdust liquefaction residue are decomposed,and the surface structure of alcoholysis residual is destructed. The hydroxybenzenes are main constituents and the relative contents are up to 76.1% in bio-oil whereas the dominant compounds consist of mainly phenol,p-cresol,4-ethylphenol,2-methoxy-4-methylphenol,and 2-methoxy-4-(prop-1-en-1-yl)phenol. The results show that the lignin is a main component in sawdust liquefaction residue,and that the main structure unit of the lignin is guaiacol.

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