매체순환연소를 위한 Ni계열 산소전달입자의 반응 특성 및 반응 모델
Reaction characteristics and kinetics of a oxygen carrier (OCN717-R1SU) for chemical looping combustion (CLC) have been investigated using TGA by changing gas concentration (10-30 vol.% $CH_4$) and reaction temperature ($825-900^{\circ}C$). Reaction rate of OCN717-R1SU increased as temperature incre...
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Published in | 한국수소 및 신에너지학회 논문집 Vol. 29; no. 1; pp. 90 - 96 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Korean |
Published |
한국수소및신에너지학회
2018
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Subjects | |
Online Access | Get full text |
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Summary: | Reaction characteristics and kinetics of a oxygen carrier (OCN717-R1SU) for chemical looping combustion (CLC) have been investigated using TGA by changing gas concentration (10-30 vol.% $CH_4$) and reaction temperature ($825-900^{\circ}C$). Reaction rate of OCN717-R1SU increased as temperature increased and it was found that reaction is delayed at the initial reaction regime. Johnson-Mehl-Avrami (JMA) model was adopted to explain the reaction phenomenon. The activation energy (E) determined by JMA model in reduction reaction of OCN717-R1SU is $151.7{\pm}2.03kJ/mol$ and pre-exponential factor and JMA exponent were also obtained. The parameters calculated in this study will be applied in design of the reactor and operation conditions for CLC process. |
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Bibliography: | KISTI1.1003/JNL.JAKO201809253681949 |
ISSN: | 1738-7264 2288-7407 |
DOI: | 10.7316/KHNES.2018.29.1.90 |