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http://dx.doi.org/10.7316/KHNES.2016.27.4.412

Effect of H2S on Reactivity of Oxygen Carrier Particle for Chemical Looping Combustion  

KIM, HANA (Korea Institute of Energy Research)
MOON, JONG-HO (Korea Institute of Energy Research)
JIN, GYOUNG-TAE (Korea Institute of Energy Research)
BAEK, JEOM-IN (Korea Electric Power Corporation (KEPCO) Research Institute)
RYU, HO-JUNG (Korea Institute of Energy Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.27, no.4, 2016 , pp. 412-420 More about this Journal
Abstract
Effect of $H_2S$ on reactivity of oxygen carrier was measured and discussed using fluidized bed reactor and SDN70 oxygen carrier. We could get 100% of fuel conversion and $CO_2$ selectivity even though $H_2S$ containing simulated syngas was used as fuel for reduction. Absorbed sulfur was released during oxidation and $N_2$ purge step after oxidation as $SO_2$ form. We could get 100% of fuel conversion and $CO_2$ selectivity during cyclic reduction-oxidation tests up to 10th cycle. However, only 6~7% of sulfur can be removed during oxidation and $N_2$ purge step and 93~94% of sulfur was accumulated in the oxygen carrier. Therefore we could conclude that total removal of sulfur was not possible. $SO_2$ emission during oxidation decreased as the number of cycle increased. Therefore we could expect that the reactivity of oxygen carrier will be decreased with time.
Keywords
CLC; Oxygen carrier particle; Reduction; Oxidation; $H_2S$(Hydrogen sulfide), Cyclic test;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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