Title:
Simulation of Biomass Gasification Processes with ASPEN Plus by Decoupling the Main Chemical Phenomena Occurring in a Gasifier
Author(s):
Abdelouahed, L., Mauviel, G., Corriou, J.P., Verdier, G., Authier, O., Dufour, A.
Document(s):
Paper
Abstract:
Simulation of biomass gasification processes by detailed flow diagrams and an Aspen Plus ® type model is a powerful tool to evaluate mass and energy flows as a function of processes designs. The simulation of the gasification reactor is one of the main key points to achieve a convenient process description. The paper addresses a detailed methodology for the simulation of a biomass gasifier by coupling Aspen Plus and Fortran softwares. The main reactions occurring in a gasifier are taking into account in separate Fortran modules: biomass pyrolysis, gaseous pyrolysis products conversion and char conversion. Empirical correlations and kinetic data are implemented in these modules. Almost all gasifiers’ technologies can be simulated by this methodology. Gas and tar compositions of a Battelle dual fluidized bed gasifier are simulated by this methodology. The predictive capability of this method is much higher than equilibrium-based calculations or than global empirical correlations (suitable only for a specific gasifier technology), as it is closer to real chemical phenomena occurring in gasifiers. This general methodology will be used to define better process engineering (catalyst reactivity and selectivity, heat recovery, etc.) and to optimize mass, energy and exergy balances of thermochemical processes.
Keywords:
dual fluidized bed, gasification, modelling, pyrolysis, tar, modeling
Topic:
Thermochemical conversion - Gasification for power and CHP and polygeneration
Subtopic:
Gasification for power and CHP and polygeneration
Event:
18th European Biomass Conference and Exhibition
Session:
VP2.1.50
Pages:
751 - 753
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-VP2.1.50
Price:
FREE
