CAJ | 학술논문

利用热重分析仪研究了化学链氧解耦燃烧中Mn3O4的吸氧特性。借助热重分析仪考察Mn3O4在不同温度、不同氧气体积分数下的吸氧特性及其循环特性，重点研究了飞灰和炉渣对循环特性的影响。辅以SEM和XRD对循环前后的颗粒进行表征和颗粒成分分析。实验结果表明，随着反应温度的升高，Mn3O4吸氧时间增加；氧气体积分数越高，吸氧时间越少。对循环测试表明，Mn3O4有较好的循环能力；炉渣中含有的 SiO2对 Mn3O4循环能力有较大影响，而飞灰对其影响不大。
이용열중분석의연구료화학련양해우연소중Mn3O4적흡양특성。차조열중분석의고찰Mn3O4재불동온도、불동양기체적분수하적흡양특성급기순배특성，중점연구료비회화로사대순배특성적영향。보이SEM화XRD대순배전후적과립진행표정화과립성분분석。실험결과표명，수착반응온도적승고，Mn3O4흡양시간증가；양기체적분수월고，흡양시간월소。대순배측시표명，Mn3O4유교호적순배능력；로사중함유적 SiO2대 Mn3O4순배능력유교대영향，이비회대기영향불대。
The oxygen adsorption characteristics of Mn3O4 in chemical looping with oxygen uncoupling(CLOU) were studied by a thermogravimetric analyzer. The oxygen adsorption characteristic and cycle characteristic of Mn3O4 were investigated under different temperatures and oxygen volume fraction. The influence of fly ash and slag onthe cycle characteristics was focused on. The particle characterization and composition before and after the circulation were analyzed by SEM and XRD. Experimental results show that the time of oxygen adsorption increased with the increase of temperature but with the decrease of oxygen volume fraction. The cycle test shows that Mn3O4 has a good ability of circulation. Slag has a great influence on the circulation ability of Mn3O4 due to SiO2 in it,but fly ash has little effect on it.