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Incorporating Oxygen Uncoupling Kinetics into Computational Fluid Dynamic Simulations of a Chemical Looping System
Author(s) -
Hamilton Matthew A.,
Whitty Kevin J.,
Lighty JoAnn S.
Publication year - 2016
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201600031
Subject(s) - kinetics , chemical looping combustion , oxygen , work (physics) , chemistry , chemical kinetics , dynamic simulation , oxide , thermodynamics , chemical engineering , simulation , materials science , computer science , organic chemistry , physics , engineering , quantum mechanics
Chemical looping with oxygen uncoupling (CLOU) is a carbon‐capture technology that utilizes a metal oxide as an oxygen carrier to separate oxygen from air and releases gaseous O 2 into a reactor where fuel is fed. Earlier experimental and simulated work has been performed on systems less than 1 MW. Previous work has been limited to one‐dimensional kinetic simulations. Literature kinetics were modified to work in a Barracuda‐VR simulation package. A simplified spreadsheet model was used to verify the Barracuda‐VR simulation adaption of the kinetics to previously published results. The simulated kinetics, literature models, and raw data matched well. The adapted kinetics were then incorporated into a 10 kW dual bubbling bed CLOU system three‐dimensional simulation. The simulations predicted carbon capture efficiency similar to that reported previously for similar systems. The solid circulation rate, temperature profile, and gas concentration profiles followed the expected trends. The overall three‐dimensional simulation of kinetics showed reasonable results for what has been previously reported.