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Nickel‐ and Copper‐Based Oxygen Carriers for Chemical Looping Combustion
Author(s) -
Hoteit A.,
Chandel M. K.,
Delebarre A.
Publication year - 2009
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200800322
Subject(s) - chemical looping combustion , combustion , syngas , methane , chemistry , oxygen , chemical engineering , fluidized bed combustion , fluidized bed , waste management , materials science , hydrogen , organic chemistry , engineering
Chemical looping combustion (CLC) is a combustion process in which the different fuels can be burnt with inherent separation of CO 2 . A CLC system has two interconnected reactors named as fuel and air reactor. In the fuel reactor, metal oxides supply oxygen for the combustion of the gaseous fuel, and the metal oxides are regenerated (oxidized) with air in the air reactor. The feasibility of a CLC system greatly depends on the selection of appropriate metal oxides as oxygen carriers. In the present study, NiO/NiAl 2 O 4 and Cu 0.95 Fe 1.05 AlO 4 were tested experimentally in a fluidized‐bed reactor as a function of number of oxidation‐reduction cycles, temperature and effect of steam mixed with methane as a fuel. A 30‐MW fuel CLC system was simulated for the combustion of biogas, syngas and methane on the basis of the experimental results.