CN

刘永卓

Education Level:博士研究生

Degree:工学博士

Discipline:Chemical Engineering

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CaSO_4的复合载氧体制备及其反应特性

Release time:2021-03-15 Hits:

Key Words:化学链燃烧;;浸渍法;;复合型载氧体

Abstract:利用浸渍法制备出载氧性能较好及价格低廉的复合型CaSO4载氧体,同时研究其固体燃料化学链燃烧特性。在综合热分析仪中研究复合型载氧体同H2和CO等气体燃料和煤焦固体燃料的反应性能,发现浸渍有微量Fe2O3和NiO的CaSO4复合型载氧体同气体、固体燃料的反应速率加快,反应时间大大缩短,Fe2O3改善载氧体的反应性能方面优于NiO。SEM照片显示复合型载氧体同固体燃料高温下反应前后颗粒形态发生较大变化,并出现颗粒聚团。XRD分析表明循环反应后浸渍的Ni以Ni3S2形式出现,而浸渍的Fe以Fe3O4化合物的形式存在,CaSO4的还原产物只有CaS。加入CaCO3颗粒后,大大改善了复合CaSO4载氧体的循环性能。

Volume:v.41;No.171

Issue:05

Translation or Not:no

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