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http://dx.doi.org/10.7316/KHNES.2012.23.2.173

Effects of Temperature, Pressure, and Gas Residence Time on Methane Combustion Characteristics of Oxygen Carrier Particle in a Pressurized Fluidized Bed Reactor  

Ryu, Ho-Jung (Korea Institute of Energy Research)
Park, Sang-Soo (Korea Institute of Energy Research)
Moon, Jong-Ho (Korea Institute of Energy Research)
Choi, Won-Kil (Korea Institute of Energy Research)
Rhee, Young-Woo (Graduate School of Green Energy Technology, Chungnam Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.23, no.2, 2012 , pp. 173-182 More about this Journal
Abstract
Effects of temperature, pressure, and gas residence time on methane combustion characteristics of mass produced oxygen carrier particle (OCN706-1100) were investigated in a pressurized fluidized bed reactor using methane and air as reactants for reduction and oxidation, respectively. The oxygen carrier showed high fuel conversion, high $CO_2$ selectivity, and low CO concentration at reduction condition and very low NO emission at oxidation condition. Moreover OCN706-1100 particle showed good regeneration ability during successive reduction-oxidation cyclic tests up to the 10th cycle. Fuel conversion and $CO_2$ selectivity decreased and CO emission increased as temperature increased. These results can be explained by trend of calculated equilibrium CO concentration. However, $CO_2$ selectivity increased as pressure increased and fuel conversion increased as gas residence time increased.
Keywords
Chemical-looping combustion; Oxygen carrier; $CO_2$; Methane; Pressurized fluidized bed;
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Times Cited By KSCI : 3  (Citation Analysis)
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