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Chemistry and Industry of Forest Products ›› 2018, Vol. 38 ›› Issue (5): 61-69.doi: 10.3969/j.issn.0253-2417.2018.05.009

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Influence of Pyrolysis Parameters on Properties of Pyrolyzed Wood Vinegar

LU Xincheng, JIANG Jianchun, SUN Kang, SUN Yunjuan   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2018-06-06 Online:2018-10-25 Published:2018-11-06

Abstract: The pyrolysis of Chinese fir sawdust in fixed bed was investigated. The influence of pyrolysis conditions (such as pyrolysis temperature, heating rate and flow rate of nitrogen) on properties of wood vinegar was discussed. The results showed that pyrolysis temperature was the main factor that effected the preparation and properties of wood vinegar. The yield of wood vinegar and refined wood vinegar were 57.13% and 38.20% under the pyrolysis conditions of pyrolysis temperature 450℃, heating rate 10℃/min and N2 flow 100 mL/min. Acids and phenols were the primary components in wood vinegar which occupied about 2/3 of total content. Organic component of wood vinegar was obviously effectedby pyrolysis conditions, pyrolysis temperature effected the content of acids,phenols and alcohols, heating rate effected the content of acids and alcohols, the flow rate of nitrogen effected the content of phenols and alcohols, the contents of aldehydes, ketones and esters were almost not effected by conditions.

Key words: Chinese fir sawdust, pyrolysis, wood vinegar, organic component

CLC Number: