Title:
Predicting Producer Gas Composition in Bubbling Fluidized Beds Using Chemical Equilibrium and Empirical Correlations
Author(s):
Pio, D.T., Tarelho, L.A.C.
Document(s):
Paper
Poster
Abstract:
In this work, two distinct approaches to predict the producer gas composition obtained by direct (air) biomass gasification in bubbling fluidized beds (BFB) were developed, compared and evaluated, namely empirical modelling based on reported experimental results in the literature and non-stoichiometric chemical equilibrium modelling. For this purpose, an extensive database containing a set of published experimental results from the literature was compiled and a non-stoichiometric chemical equilibrium model (CEM) developed. Significant deviations were found between the CEM predictions and the reported experimental results in the literature. The empirical correlations developed show moderate accuracy in the determination of the producer gas composition (CO, H2 and CH4), whereas the chemical equilibrium clearly overestimates the concentration of H2 and CO, and underestimates the concentration of CH4.
Keywords:
biomass, gasification, bubbling fluidized bed, empirical modelling, chemical equilibrium
Topic:
Biomass Conversion Technologies for Energy Carriers, Chemicals and Materials
Subtopic:
Hydrothermal processing
Event:
27th European Biomass Conference and Exhibition
Session:
3AV.6.26
Pages:
1169 - 1179
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-3AV.6.26
Price:
FREE
