TY - GEN
T1 - Modeling of biomass gasification in circulating fluidized beds
AU - Miao, Q.
AU - Zhu, J.
AU - Yin, X. L.
AU - Wu, C. Z.
PY - 2008
Y1 - 2008
N2 - A thermodynamic model for an atmospheric circulating fluidized bed biomass gasifier (CFBBG) under steady state was developed in this study. Using the approach of Gibbs free energy minimization, the model was essentially independent of kinetic parameters. By introducing some non-equilibrium factors, it could be modified to predict the gasifier temperature, gas composition, lower heating value (LHV) of gas, as well as overall carbon conversion. A sensitivity analysis was performed on the model to test its response to operating variables, including equivalence ratio (ER) and biomass moisture content. The results showed that the ER has the most effect on the product gas composition and LHV. The model was validated using the experimental results obtained from a biomass demonstration power plant. A good agreement between the model predictions and experimental data was found.
AB - A thermodynamic model for an atmospheric circulating fluidized bed biomass gasifier (CFBBG) under steady state was developed in this study. Using the approach of Gibbs free energy minimization, the model was essentially independent of kinetic parameters. By introducing some non-equilibrium factors, it could be modified to predict the gasifier temperature, gas composition, lower heating value (LHV) of gas, as well as overall carbon conversion. A sensitivity analysis was performed on the model to test its response to operating variables, including equivalence ratio (ER) and biomass moisture content. The results showed that the ER has the most effect on the product gas composition and LHV. The model was validated using the experimental results obtained from a biomass demonstration power plant. A good agreement between the model predictions and experimental data was found.
UR - http://www.scopus.com/inward/record.url?scp=84904817993&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84904817993
SN - 9783930400577
T3 - CFB 2008 - Proceedings of the 9th Int. Conference on Circulating Fluidized Beds, in Conjunction with the 4th International VGB Workshop "Operating Experience with Fluidized Bed Firing Systems"
BT - CFB 2008 - Proceedings of the 9th Int. Conference on Circulating Fluidized Beds, in Conjunction with the 4th International VGB Workshop "Operating Experience with Fluidized Bed Firing Systems"
PB - TuTech Innovation GmbH
T2 - 9th International Conference on Circulating Fluidized Beds, CFB 2008, in Conjunction with the 4th International VGB Workshop on Operating Experience with Fluidized Bed Firing Systems
Y2 - 13 May 2008 through 16 May 2008
ER -