Simulation of the thermogravimetry analysis of three non-wood pulps.
In a study of three non-wood pulps (rice straw, EFB, and Hesperaloe), the standard pyrolysis model for biomass based on hemicellulose, cellulose, and lignin pseudo-components, was modified to include char volatilization. As a result, abnormally high values for lignin content have been avoided. On the other hand, the consideration of autocatalysis (Prout-Tompkins equation) for TGA data simulation under inert and oxidative atmospheres, allows obtaining a stable set of kinetic parameters that describe volatilization and char oxidation for different heating rates, including char ignition. These simulations allow us to investigate certain effects like oxygen influence on cellulose-char formation (including reduction in activation energy) and to calculate the composition of samples.
Barneto
Agustín García
AG
Chemical Engineering Department, Campus El Carmen, University of Huelva, 21071 Huelva, Spain. agustin.garcia@diq.uhu.es
Carmona
José Ariza
JA
Alfonso
José E Martín
JE
Serrano
Rafael Sánchez
RS
D000070357:Asparagaceae / Q000737:chemistry*; D018533:Biomass; D003198:Computer Simulation; D005638:Fruit / Q000737:chemistry*; D007700:Kinetics; D008956:Models, Chemical; D012275:Oryza / Q000737:chemistry*; D010084:Oxidation-Reduction; D013696:Temperature; D013818:Thermogravimetry / Q000379:methods*; D014835:Volatilization; D014934:Wood / Q000737:chemistry