515 Oxygen Combustion Advancement - Chemical Looping

Wednesday, October 31, 2012: 12:30 PM
301 (Convention Center )
Oxy-fuel combustion is a promising approach to produce heat and power with inherent CO2 separation. Conventional oxy-fuel combustion requires energy to produce the required oxygen. Advances in oxygen production with cryogenic or membrane technologies have significantly reduced the cost and energy needed to produce oxygen, but further reductions may be possible with advanced approaches like chemical looping combustion (CLC). In the CLC approach, fuel is used to reduce a solid metal oxide, which is subsequently re-oxidized in air. Repeated in this manner, the metal/metal oxide “loops” between fuel and air reactors so that oxygen is supplied to the fuel reactor, without nitrogen. As with conventional oxy-fuel, the combustion products in the fuel reactor are just CO2 and water vapor. Unlike conventional oxy-fuel, no specific oxygen separation is needed. Fundamental studies of CLC oxygen carriers, as well as reactor and process design are being conducted by many laboratories. Modern simulation tools allow prediction across all aspects of this new process – ranging from metal/metal oxide reactions to computational fluid dynamics (CFD) of fluid bed reactors. Simulations at all levels are expected to guide experimental development, and experimental data are needed to validate predictive capabilities. Presenters are encouraged to submit papers that will support both experimental and simulation development for the chemical looping process.

Advanced Power Cycles
ICE2012: Fossil Fuels & CCS (T4G)

George Richards
Email: george.richards@netl.doe.gov

Götz Veser
Email: gveser@pitt.edu

- indicates paper has an Extended Abstract file available on CD.

12:30 PM
(515a) CFD Simulation of Pressurized, Staged Oxyfuel Combustion
Benjamin M. Kumfer, Fei Xia, Bhupesh Dhungel and Richard L. Axelbaum

12:49 PM
(515b) Double Perovskite Materials for Applications in Chemical Looping and Oxygen Storage
Jonathan W. Lekse, Sittichai Natesakhawat, John P. Baltrus and Christopher Matranga
File available
1:08 PM
(515c) Using CaxLa1-xMn1-yXyO3 As Oxygen Carriers for Chemical-Looping Combustion
Tobias Mattisson, Ali Hedayati, Abdul-Majeed Azad, Magnus Ryden and Henrik Leion

1:27 PM
File available
1:46 PM
(515e) Oxygen Carriers for Chemical-Looping Combustion with Solid Fuels
Tobias Mattisson, Henrik Leion, Magnus Ryden and Anders Lyngfelt

2:05 PM
(515f) Development and Performance Evaluation of a Cost-Effective Oxygen Carriers
Liangyong Chen, Yi Zhang, Fang Liu, Chunli Han, James K. Neathery and Kunlei Liu

2:24 PM
(515g) Study of Wyoming PRB Coal for Application of Solid Fueled Chemical Looping Combustion with TGA-MS
Yi Zhang, Jeffrey Slone, Aurora M. Rubel, James K. Neathery, Fang Liu, Chunli Han, Liangyong Chen and Kunlei Liu

2:43 PM
(515h) Techno-Economic Evaluation of Chemical Looping Combustion for Industrial-Scale Applications
John T. Ramsey, Michael J Gallagher Jr., Stephen Carpenter and George Richards