TY - JOUR
DP - National Agricultural Library
DB - PubAg
JO - Energy conversion and management
TI - Quantitatively modelling kinetics through a visual analysis of the derivative thermogravimetric curves: Application to biomass pyrolysis
A1 - Martí-Rosselló, Teresa
A4 - Martí-Rosselló, Teresa
A4 - Li, Jun
A4 - Lue, Leo
EP - 2018 v.172
KW - activation energy
KW - biomass
KW - cellulose
KW - equations
KW - fuels
KW - hemicellulose
KW - lignin
KW - models
KW - pyrolysis
KW - reaction kinetics
KW - statistical analysis
KW - temperature
KW - thermogravimetry
AN - 6101995
AB - Analytic relations are developed that directly link visually observable features of differential thermogravimetric (DTG) curves (e.g., peak temperature, height, width, skewness and conversion at the peak) to the parameters of chemical reaction kinetics models (e.g., activation energy and prefactor), which can be used to study the thermal decomposition of solid fuels. General expressions suitable for any reaction model are provided, as well as explicit expressions for nth order reactions with a rate constant given by the Arrhenius equation. This approach is illustrated for the pyrolysis of biomass, where it is found to provide a rapid and accurate estimate of the relative contributions of cellulose, hemicellulose, and lignin to the volatile yield, as well as their kinetic parameters. The method offers a simple way to obtain the model reaction kinetics parameters from thermogravimetric data and saves computing time by providing sensible initial values and bounds of the fit parameters.
PY - 2018
LA -
DA - 2018-09-15
VL - v. 172
SP - pp. 296-305
DO - 10.1016/j.enconman.2018.07.018
ER -