Repositorio UFRO · Omeka S

Finite Rate Reaction Mechanism Adapted for Modelling Pseudo-Equilibrium Pyrolysis of Cellulose

Primer Autor	Mora Chandia, Tomas
Título	Finite Rate Reaction Mechanism Adapted for Modelling Pseudo-Equilibrium Pyrolysis of Cellulose
Editorial	MDPI
Revista	PROCESSES
Lenguaje	en
Resumen	This manuscript is related to a formulation for modelling cellulose pyrolysis with a pseudo-equilibrium approach. The objective is to model the kinetics of the cellulose pyrolysis with a semi-global mechanism obtained from the literature in order to obtain the yield and the rate of formation, mainly that of char. The pseudo-equilibrium approach consists of the assumption that the solid phase devolatilisation can be described kinetically-at a finite rate-thus preserving the competitive characteristic between the production of char and tar, while the gas phase can be described directly by means of chemical equilibrium. The aforementioned approach gives a set of ordinary, linear, and nonlinear differential equations that are solved numerically with a consistent numerical scheme (i.e., the Totally Implicit Euler method). Chemical equilibrium was solved using CANTERA coupled with a code written in MATLAB. The results showed that the scheme preserved the tar-gas competitive characteristic for cellulose pyrolysis. The gas phase was defined as a mixture of CO2, CO, H2O, CH4, H-2, and N-2, showing a similar composition compared to models from the literature. Finally, the extension of the model to biomass in general is straightforward for including hemicellulose and lignin. The formulation is described in detail throughout the document in order to be replicated and evaluated for other biological components.
Tipo de Recurso	artículo original
doi	10.3390/pr10102131
Formato Recurso	PDF
Palabras Claves	cellulose pyrolysis chemical equilibrium chemical kinetics BIOMASS PYROLYSIS KINETIC-MODEL GASIFICATION PROCESS BED REACTOR WOOD OPTIMIZATION TEMPERATURE PERFORMANCE PREDICTION PARAMETERS
Ubicación del archivo	http://dx.doi.org/10.3390/pr10102131
Categoría OCDE	Ingeniería Química
Materias	celulosa pirólisis equilibrio químico cinética química PIRÓLISIS DE BIOMASA MODELO CINÉTICO PROCESO DE GASIFICACIÓN REACTOR DE LECHO MADERA OPTIMIZACIÓN TEMPERATURA RENDIMIENTO PREDICCIÓN PARÁMETROS
Disciplinas de la OCDE	Ingeniería Química Ingeniería en Procesos Químicos Termodinámica
Título de la cita (Recomendado-único)	Finite Rate Reaction Mechanism Adapted for Modelling Pseudo-Equilibrium Pyrolysis of Cellulose
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	version publicada
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0
Derechos de acceso	acceso abierto
Access Rights	acceso abierto
Id de Web of Science	WOS:000873637800001