Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 29, Issue -, Pages 87-96Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2015.03.020
Keywords
Chemical looping combustion; Hematite reduction; Kinetic rates
Funding
- Department of Energy through the office of Fossil Energy's Gasification Technology and Advanced Research funding programs
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Chemical looping combustion is a promising technology for the capture of CO2 involving redox materials as oxygen carriers. The effects of reduction conditions, namely, temperature and fuel partial pressure on the conversion products are investigated. The experiments were conducted in a laboratory fixed-bed reactor that was operated cyclically with alternating reduction and oxidation periods. Reactions are assumed to occur in the shell surrounding the particle grains with diffusion of oxygen to the surface from the grain core. Activation energies for the shell and core reactions range from 9 to 209 kJ/mol depending on the reaction step. Published by Elsevier B.V.
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