Title:
A Kinetic Model Approach to Simulate Biomass Gasification of Different Feedstocks in a Fluidized Bed Reactor
Author(s):
González-Vázquez, M.P., Rubiera, F., Pevida, C., Gil, M.V.
Document(s):
Paper
Abstract:
A kinetic model was developed in Aspen Plus® to simulate the air–steam gasification of biomass, incorporating kinetics for both gasification reactions and tar formation/cracking using a plug flow reactor block. While most simulation studies focus on wood-based feedstocks, this work aims to develop a flexible model that can represent a variety of lignocellulosic biomasses. Firstly, a biomass pyrolysis step was simulated to define the yields and composition of gas, tar, and char. This was followed by the simulation of combustion and gasification stages using reaction-specific kinetic parameters. Model validation was performed using experimental data from the gasification of six different lignocellulosic biomasses in a bubbling fluidized bed gasifier at 900 şC, with a steam-to-air volume ratio (S/A) of 70/30 and stoichiometric ratios (SR) ranging from 0.1 to 0.4. The model accurately predicted the outlet concentrations of H2, CO, CH4, and CO2, with a maximum absolute error of 5.8%.
Keywords:
biomass, gasification, modelling, fluidized bed
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Gasification for synthesis gas production
Event:
33rd European Biomass Conference and Exhibition
Session:
4BV.5.19
Pages:
778 - 781
ISBN:
978-88-89407-25-7
Paper DOI:
10.5071/33rdEUBCE2025-4BV.5.19
Price:
FREE
