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Chemistry and Industry of Forest Products ›› 2021, Vol. 41 ›› Issue (1): 60-66.doi: 10.3969/j.issn.0253-2417.2021.01.009

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Aromatic Chemicals Produced by Hydrogenolysis of Lignin Extracted from Phyllostachys heterocycla Hydrolysis Residues

Yi CHENG1, Yixin QU1, Sheng YANG2, Kang ZHUANG1, Jidong WANG1,*()   

  1. 1. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
    2. Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
  • Received:2020-07-24 Online:2021-02-28 Published:2021-03-03
  • Contact: Jidong WANG E-mail:jidongwang1963@163.com


Two kinds of lignin were extracted from moso bamboo(Phyllostachys heterocycla) hydrolysis residue by hydrogen peroxide method and methanol method. The process of catalytic reductive hydrogenolysis was investigated. The results of two kinds of lignin conversion and product distribution were compared at the same reaction temperature and reaction time. Meanwhile, the optimal conditions of hydrogen peroxide lignin conversion were optimized. When the reaction temperature was 220 ℃, the reaction time was 60 min, lignin extracted by hydrogen peroxide could be converted entirely into soluble substance, and the monomer yield was 14.85%. The soluble substance yield of lignin extracted by methanol method was 96.8%, the monomer yield was 7.13%. The results showed that the conversion efficiency of hydrogen peroxide lignin to aromatic chemicals was higher than that of methanol lignin at reductive hydrogenolysis. The reductive hydrogenolysis process restored the benzoquinone of hydrogen peroxide lignin to the aromatic structure. The side chains in the product were mainly carbonyl, carboxyl, aldehyde, and alkane groups.

Key words: moso bamboo hydrolysis residues, hydrogen peroxide, methanol, reductive hydrogenolysis, aromatic chemicals

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