SCI和EI收录∣中国化工学会会刊

›› 2009, Vol. 17 ›› Issue (5): 835-839.

• BIOTECHNOLOGY AND BIOENGINEERING • Previous Articles     Next Articles

Kinetic Studies on Wheat Straw Hydrolysis to Levulinic Acid

CHANG Chun1, CEN Peilin1   

  1. 1. School of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, China;
    2. School of Material Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2009-02-12 Revised:2009-04-17 Online:2009-10-28 Published:2009-10-28
  • Supported by:
    Supported by the National Key Technology R&D Program of China (2007BAD66B04)

Kinetic Studies on Wheat Straw Hydrolysis to Levulinic Acid

常春1, 岑沛霖1   

  1. 1. School of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, China;
    2. School of Material Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
  • 通讯作者: CHANG Chun,E-mail:chunchang@zzu.edu.cn
  • 基金资助:
    Supported by the National Key Technology R&D Program of China (2007BAD66B04)

Abstract: Levulinic acid is considered as a promising green platform chemical derived from biomass.The kinetics of levulinic acid accumulation in the hydrolysis process of wheat straw was investigated in the study.Using dilute sulfuric acid as a catalyst,the kinetic experiments were performed in a temperature range of 190-230℃ and an acid concentration range of 1%-5% (by mass) .A simple model of first-order series reactions was developed,which provided a satisfactory interpretation of the experimental results.The kinetics of main intermediates including sugar and 5-hydroxymethylfurfural(5-HMF) were also established.The kinetic parameters provided useful information for understanding the hydrolysis process.

Key words: levulinic acid, wheat straw, hydrolysis, kinetics

摘要: Levulinic acid is considered as a promising green platform chemical derived from biomass.The kinetics of levulinic acid accumulation in the hydrolysis process of wheat straw was investigated in the study.Using dilute sulfuric acid as a catalyst,the kinetic experiments were performed in a temperature range of 190-230℃ and an acid concentration range of 1%-5% (by mass) .A simple model of first-order series reactions was developed,which provided a satisfactory interpretation of the experimental results.The kinetics of main intermediates including sugar and 5-hydroxymethylfurfural(5-HMF) were also established.The kinetic parameters provided useful information for understanding the hydrolysis process.

关键词: levulinic acid, wheat straw, hydrolysis, kinetics