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Reactive CFD simulation of an FCC regenerator
Author(s) -
Schwarz M. Philip,
Lee John
Publication year - 2007
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.64
Subject(s) - freeboard , refinery , regenerative heat exchanger , computational fluid dynamics , distributor , mixing (physics) , coke , air separation , combustion , process engineering , waste management , environmental science , materials science , mechanical engineering , nuclear engineering , engineering , thermodynamics , chemistry , oxygen , fluidized bed , heat exchanger , physics , organic chemistry , quantum mechanics , aerospace engineering
A computational fluid dynamic (CFD) model including coke combustion and heat transfer has been developed of the fluidised bed in the regenerator vessel of the fluidised bed catalytic cracker unit (FCCU) at the BP Bulwer Island Refinery. The model has been used to test various design modifications aimed at improving oxygen utilisation efficiency by reducing short‐circuiting of solids through the vessel. A catalyst return distributor design has been determined that gives significantly better mixing, and hence significantly reduced breakthrough of oxygen and CO into the freeboard compared with the existing design. When the modification was implemented at the plant, excess O 2 was reduced significantly Copyright © 2007 Curtin University of Technology and John Wiley & Sons, Ltd.