260658 Three-Dimensional Reacting Flow Simulation of a Chemical Looping Fuel Reactor

Thursday, November 1, 2012: 2:36 PM
307 (Convention Center )
Yong Liu, National Energy Technology Laboratory, U.S. Department of Energy, Pittsburgh, PA, E. David Huckaby, Computational Science Division, National Energy technology Laboratory, Morgantown, WV, Michael Gallagher, URS Corporation, Morgantown, WV and Stephen Carpenter, NETL-URS, Morgantown, WV

Chemical looping combustion (CLC) is one of several proposed methods for energy production from fossil fuels with CO2 capture. The most common CLC configuration consists of an interconnected fast fluidized bed air reactor and a bubbling bed fuel reactor. The fuel reactor is where the fuel, such as CH4, H2 or even coal, reacts with the solid oxygen carrier. Thus the performance of the fuel reactor will determine the performance of the whole interconnected system. Simulations using ANSYS-Fluent were performed and combined with user defined functions to study the flow behavior and the reduction of the oxygen carrier in the fuel reactor. Parameters such as the oxygen carrier particle size, bed height in the fuel reactor, and fluidization gas flow rates were varied to study the effects on the performance of the fuel reactor. The distributions of pressure, temperature and gaseous components such as N2, CO2, H2O and CH4 were analyzed and the results will be discussed.

Extended Abstract: File Not Uploaded
See more of this Session: Chemical Looping Processes 2 -- Kinetics and Reactor Studies
See more of this Group/Topical: Energy and Transport Processes