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Reduction and Decomposition Characteristics of CaSO4 Based Oxygen Carrier Particles
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 Title & Authors
Reduction and Decomposition Characteristics of CaSO4 Based Oxygen Carrier Particles
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As a candidate for cheap oxygen carrier, based oxygen carriers have been developing. However, research on reaction characteristics and side reaction of based oxygen carrier is very limited. There are many possible reactions for main components of syngas from coal. In this study, we prepared three based oxygen carriers (-/bentonite, -/bentonite, -CaO/bentonite) and performed reduction tests by hydrogen. Cyclic reduction-oxidation tests up to cycle are also conducted using hydrogen as fuel. Reduction reactivity of those based oxygen carriers were compared with that of NiO based oxygen carrier (OCN703-1100). Real weight change fractions of based oxygen carriers were higher than theoretical oxyen transfer capacity and reactivity of these particles decreased with the number of cycle increased. To check possible side reaction of based oxygen carriers, decomposition tests were carried out and was detected even at . Consequently, we could conclude that based oxygen carriers decompose and release and this reaction lead reactivity decay of based oxygen carries.
CLC;Oxygen carrier particle;Reduction;Decompostion;;
 Cited by
0.5 MWth 가압 케미컬루핑 연소기 개념설계 및 구현 가능성 조사,류호정;이동호;장명수;김정환;백점인;

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