TY - GEN
T1 - CFD modelling of thermo-chemical process in catalytic pyrolysis of sawdust in bubbling fluidized beds
AU - Dong, Nanhang
AU - Gu, Sai
AU - Armstrong, Lindsay Marie
AU - Papadikis, Konstantinos
AU - Luo, Kaihong
N1 - Publisher Copyright:
© 2012, Begell House Inc. All rights reserved.
PY - 2012
Y1 - 2012
N2 - Simulation of catalytic cracking of sawdust samples has been carried out in bubbling fluidized beds with in situ catalyst. The techniques of bio-oil upgrading are one of the critical issues in industrial applications. Computational modelling of thermochemical processing of biomass can be quite complex, since it involves the interaction of multiphase flow dynamics coupled with chemical reaction. The current work presents a numerical model that investigates the online catalytic upgrading of fast pyrolysis derived tars. The Eulerian-Eulerian approach is employed to model the multiphase flow in fluidized beds, coupled with the Kinetic Theory of Granular Flows. The kinetic scheme for catalytic pyrolysis is incorporated into the simulation to represent the decomposition of biomass. The simulation results show that the convection processes dominate the heating up of the sawdust particles while the space time, the ratio of catalyst mass to tar flow rate, can significantly influence the final product yield distribution.
AB - Simulation of catalytic cracking of sawdust samples has been carried out in bubbling fluidized beds with in situ catalyst. The techniques of bio-oil upgrading are one of the critical issues in industrial applications. Computational modelling of thermochemical processing of biomass can be quite complex, since it involves the interaction of multiphase flow dynamics coupled with chemical reaction. The current work presents a numerical model that investigates the online catalytic upgrading of fast pyrolysis derived tars. The Eulerian-Eulerian approach is employed to model the multiphase flow in fluidized beds, coupled with the Kinetic Theory of Granular Flows. The kinetic scheme for catalytic pyrolysis is incorporated into the simulation to represent the decomposition of biomass. The simulation results show that the convection processes dominate the heating up of the sawdust particles while the space time, the ratio of catalyst mass to tar flow rate, can significantly influence the final product yield distribution.
UR - http://www.scopus.com/inward/record.url?scp=85066283918&partnerID=8YFLogxK
U2 - 10.1615/ICHMT.2012.CHT-12.180
DO - 10.1615/ICHMT.2012.CHT-12.180
M3 - Conference Proceeding
AN - SCOPUS:85066283918
SN - 9781567003031
T3 - International Symposium on Advances in Computational Heat Transfer
SP - 299
EP - 315
BT - Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012
PB - Begell House Inc.
T2 - International Symposium on Advances in Computational Heat Transfer, CHT 2012
Y2 - 1 July 2012 through 6 July 2012
ER -