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Chemistry and Industry of Forest Products ›› 2018, Vol. 38 ›› Issue (6): 88-94.doi: 10.3969/j.issn.0253-2417.2018.06.012

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Destructive Distillation of Chinese Fir Chips and Components of Its Products

MENG Binbin, ZHU Kai   

  1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
  • Received:2018-07-19 Online:2018-12-25 Published:2018-12-27

Abstract: Essential fir oil was prepared by destructive distillation using Chinese fir chips as raw material. The yields of destructive distillation oil, wood vinegar, tar and charcoal were 4.0%, 38.0%, 14.3% and 28.8%, respectively. Non-condensable flammable gas was also generated during destructive distillation, the yield of gas was 15.0%. The property and composition of destructive distillation oil, wood vinegar and non-condensable gas were studied. The results showed that all of the fir chips were converted into products with conversion rate over 80%. The compositions of destructive distillation oil were α-cedrene 29.36%, β-cedrene 11.87%, cedrol 12.10%, etc. The main organic components of the vinegar were 1-methyl-ethylidene-cyclohexane 24.07%, acetic acid 19.77%, 4-ethylguaiacol 11.71%, furfural 8.06%, etc. Main components of non-condensable combustible gas were H2, CO and CH4.

Key words: destructive distillation, Chinese fir oil, GC-MS, Chinese fir chips

CLC Number: