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Chemistry and Industry of Forest Products ›› 2020, Vol. 40 ›› Issue (2): 117-124.doi: 10.3969/j.issn.0253-2417.2020.02.016

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Catalytic Pyrolysis of Biomass to Produce Specific High Value-added Furans and Aldehydes Chemicals

Bozheng LI1,Dongmei BI1,*(),Yongjun LI1,2,Mei JIANG1   

  1. 1. School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
    2. Shandong Reseach Center of Engineering and Technology for Clean Energy, Zibo 255000, China
  • Received:2019-09-05 Online:2020-04-28 Published:2020-04-27
  • Contact: Dongmei BI E-mail:bidongmei@sdut.edu.cn

Abstract:

Using rape straw, corn straw and camphor wood powder as raw materials, ZnCl2 was selected as a catalyst to carry out catalytic pyrolysis experiments in a horizontal tubular furnace reactor. The yields of the high value-added chemicals, e.g. furfural (FF), paraformaldehyde and 5-methylfurfural, in the bio-oil were taken as evaluation indexes. The results showed that the bio-oil yield of camphor wood powder was the highest, up to 51.76%, without catalyst. When ZnCl2 was the catalyst with a mass ratio of 1:1 in the pyrolysis, the bio-oil yield of the three raw materials decreased. And the bio-oil yield of camphor wood powder (30.50%) decreased significantly. The yield of aldehydes in the bio-oil obtained from corn straw and camphor wood powder increased to 0.48% and 0.84%, respectively. After catalytic pyrolysis of rape straw, corn straw and camphor wood powder, the yield of furans in the bio-oil increased by 253.72%, 85.05%, and 202.32%, respectively. The yield of FF in bio-oil increased by 470.41%, 313.87%, and 340.99%, respectively. The yield of 5-methylfurfural increased by 318.18%, 200.00%, and 213.04%, respectively. Meanwhile, the yield of paraformaldehyde in the bio-oil obtained from the catalytic pyrolysis of corn straw by ZnCl2 increased increased slightly.

Key words: biomass, rapid pyrolysis, chemicals, ZnCl2, furfural, furans

CLC Number: