RT info:eu-repo/semantics/article
T1 Determination of hemicellulose, cellulose, and lignin content in different types of biomasses by thermogravimetric analysis and pseudocomponent kinetic model (TGA-PKM method)
A1 Díez Rodríguez, David
A1 Urueña Leal, Ana
A1 Piñero Hernanz, Raúl
A1 Barrio, Aitor
A1 Tamminen, Tarja
K1 Cellulose
K1 Celulosa
K1 Lignin
K1 Biomass energy
K1 Energías renovables
K1 TGA
K1 Hemicellulose
K1 Pseudocomponent kinetic model
K1 3322.02 Generación de Energía
AB The standard method for determining the biomass composition, in terms of main lignocellulosic fraction (hemicellulose, cellulose and lignin) contents, is by chemical method; however, it is a slow and expensive methodology, which requires complex techniques and the use of multiple chemical reagents. The main objective of this article is to provide a new efficient, low-cost and fast method for the determination of the main lignocellulosic fraction contents of different types of biomasses from agricultural by-products to softwoods and hardwoods. The method is based on applying deconvolution techniques on the derivative thermogravimetric (DTG) pyrolysis curves obtained by thermogravimetric analysis (TGA) through a kinetic approach based on a pseudocomponent kinetic model (PKM). As a result, the new method (TGA-PKM) provides additional information regarding the ease of carrying out their degradation in comparison with other biomasses. The results obtained show a good agreement between experimental data from analytical procedures and the TGA-PKM method (±7%). This indicates that the TGA-PKM method can be used to have a good estimation of the content of the main lignocellulosic fractions without the need to carry out complex extraction and purification chemical treatments. In addition, the good quality of the fit obtained between the model and experimental DTG curves (R2Adj = 0.99) allows to obtain the characteristic kinetic parameters of each fraction.
PB MDPI
SN 2227-9717
YR 2020
FD 2020
LK https://uvadoc.uva.es/handle/10324/58980
UL https://uvadoc.uva.es/handle/10324/58980
LA eng
NO Processes, 2020, Vol. 8, Nº. 9, 1048
NO Producción Científica
DS UVaDOC
RD 18-dic-2024