000			01872nab a2200205 4500
005			20260520000926.0
008			260224s2011 xxu
245	0	0	_aThermogravimetric study of biomass pyrolysis kinetics. A distributed activation energy model with prediction tests
260			_a _b _cene./feb. 2011
270			_a01/04/2011 ; 01/04/2011
300			_a9 p. ; 24-32
520			_aTranscripción del resumen del autor. The pyrolysis of four biomasses (corn stalk, rice husk, sorghum straw, and wheat straw) was studied at different temperature-time functions in an inert gas flow by thermogravimetric analysis (TGA). Linear and stepwise heating programs were employed. A distributed activation energy model (DAEM) with three pools of reactants (three pseudocomponents) was used because of the complexity of the biomass samples of agricultural origin. Compensation effects were observed between the kinetic parameters as in the works of other investigators. The compensation effects result in ambiguous parameter values; hence, they were eliminated with a decrease in the number of unknown parameters. For this purpose, some of the kinetic parameters were assumed to be the same for the four biomasses. This approach also helps to express the similarities of the samples in the model. The 16 experiments were evaluated simultaneously by the method of least squares, yielding dependable kinetic parameters. The resulting models describe well the experimental data and are suitable for predicting experiments at higher heating rates. The checks on the prediction capabilities were considered to be an essential part of the model verification.
581			_a1
773	0		_tEnergy & fuels _g25
942			_cARTICULO
100	1		_aVárhegyi, Gábor _935978
100	1		_aBobály, Balázs _944978
100	1		_aJakab, Emma _944979
999			_c174363 _d174363