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Biomass Chemical Engineering ›› 2021, Vol. 55 ›› Issue (6): 21-25.doi: 10.3969/j.issn.1673-5854.2021.06.003

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Pyrolysis Characteristics and Kinetics of Chitin with KOH

Qingsong JI(), Haichao LI()   

  1. Key Laboratory of Applied Chemistry of Qinghai Province, Qinghai Nationalities University, Xining 810007, China
  • Received:2020-09-04 Online:2021-11-30 Published:2021-10-29
  • Contact: Haichao LI E-mail:jqs19971119@163.com;lihaichao@vip.163.com


The thermogravimetric analysis method was used to research the pyrolysis characteristics of chitin with KOH, and the effect of different impregnation ratios on the pyrolysis process was analyzed. The pyrolysis kinetic parameters were obtained by using the Coats-Redfern integral theory. The effect of KOH on the activation energy of the main pyrolysis process of chitin was investigated.The results of thermogravimetric showed that the addition of KOH changed the pyrolysis behavior of chitin, reduced the activation energy of pyrolysis accelerated the reaction rate and promoted the pyrolysis of chitin. Chitin could be fast pyrolysis with KOH at 140℃ and m(65%KOH): m(chitin)=2:1 or 3:1. The calculating results of pyrolysis kinetic parameters indicated that chitin pyrolysis with KOH was a complex reaction.

Key words: chitin, potassium hydroxide, fast pyrolysis, kinetic parameters

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