Liu NA, Fan WC, Dobashi R, Huang LS (2002) Kinetic modeling of thermal decomposition of natural cellulosic materials in air atmosphere. Journal of Analytical and Applied Pyrolysis 63(2), 303-325. [In English]
Web link: http://dx.doi.org/10.1016/s0165-2370(01)00161-9
Keywords:
cellulosic materials, thermal decomposition, mass loss, kinetic modeling, pyrolysis kinetics, thermogravimetry, limitations, stability, equation, wood,
Abstract: The wood and leaf samples of eight species are examined by non-isothermal means to determine the mass loss kinetics of the thermal decomposition with linear temperature programming in air atmosphere, A simple kinetic description, named in this work as 'First Order Pseudo Bi-component Separate-stage Model (PBSM-O1)', is developed based on the experimental results and integral analysis method. The model assumes that the mass loss process of any wood or leaf sample consists of three steps. The first step corresponds to the water evaporation, and the subsequent two mass loss steps are mainly due to two major pseudo components. The two pseudo components decompose respectively at two separate temperature regions, other than at the global temperature region as used in the previous developed models by other authors. The global mass loss rate of the sample is looked on as controlled respectively by the reactions of the two components respectively during the lower and higher temperature ranges. The kinetics of the two components are found to abide by the first order equation, which gives the best fits to the experimental data compared with other model functions. The advantages of PBSM-O1 are discussed by comparing it with other kinetic models. PBSM-O1 is additionally validated by the reasonable agreement between the experimental and calculated results. (C) 2002 Elsevier Science B.V. All rights reserved.
