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›› 2007, Vol. 24 ›› Issue (2): 174-178.DOI: 10.7523/j.issn.2095-6134.2007.2.006

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Study of thermal analysis technology of sulfonated wheat--strew soda lignin

LIANG Wen-Xue, QIU Xue-Qing, OUYANG Xin-Ping, YANG Dong-Jie   

  1. School of Chemical and Energy Engineering, South China University of Technology, Guangdong Provincial Laboratory of Green Chemical Technology, Guangzhou, China, 510640
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-03-15

Abstract: The thermal decomposition process of sulfonated wheat- strew soda lignin at the none-oxygen state was studied, using TG-IR and Non-isothermal Differential Scanning Calorimetry (DSC). The Kissinger and Ozawa equation kinetic parameters of the thermal decomposition were obtained. The apparent activation energy Ea, and pre-exponential factor, lnA, are 118.3 kJ•mol-1, 121.46 kJ•mol-1; 20.40min-1, 15.92min-1; respectively. The reaction order of the process is 1.8 by using Kissinger method.

Key words: sulfonated wheat- strew lignin, TG-IR, DSC, thermal analysis kinetic

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