한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제20권3호
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  • Pages.245-255
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  • 2009
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

매체순환식 가스연소기용 산소공여입자들의 환원반응성에 미치는 $CO_2$ 농도의 영향

Effect of $CO_2$ Concentration on Reduction Reactivity of Oxygen Carriers for Chemical-looping Combustor

  • 발행 : 2009.06.30
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초록

Effect of CO$_2$ concentration on reduction reactivity of oxygen carrier particles for chemical-looping combustor were investigated. Four particles, NiO/bentonite, OCN601-650, OCN702-1100, OCN702-1250, were used as oxygen carrier particles and two kinds of gases (CH$_4$, 5%, N$_2$ balance and CH$_4$ 5%, CO$_2$ balance) were used as reactants for reduction. For all oxygen carrier particles, higher maximum conversion, reduction rate, oxygen transfer capacity, and oxygen transfer rate were achieved when we used N$_2$ balance gas. OCN601-650 particle showed higher oxygen transfer rate for all gases than other particles, and therefore we selected OCN601-650 particle as the best candidate. For all particles, lower carbon depositions were observed when we used CO$_2$ balance gas.

키워드

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