中文摘要：

以非金属CaSO4作为氧载体,在固定床反应器上,研究了CaSO4与CO/空气在950℃下的循环反应性。在反应过程中记录分析反应后生成的尾气成分,收集反应后的固体并进行了XRD、FSEM等表征分析,得出结论:950℃时CaSO4与CO还原反应阶段主要生成CaS,只生成极少量的CaO,并且没有出现碳沉积现象;SO2气体主要是在氧化反应初始阶段生成的,当氧气体积浓度为4%时,SO2体积浓度最高可达到0.5%。表征分析表明,CaSO4具有很好的机械性能、抗团聚和抗烧结能力,但持续循环能力不强。

英文摘要：

With a non-metal CaSO4 serving as an oxygen carrier,studied on a fixed bed reactor was the circulation reactivity of CaSO4 and CO/air at 950 ℃.During the reaction,the constituents of the exhaust gas produced were recorded and analyzed.The solids remained after the reaction were collected and a characteristic analysis was performed by using XRD(X-ray diffraction) and FSEM(fast scanning electron microscope) etc.The authors concluded that at 950 ℃,the reaction of CaSO4 and CO mainly produces CaS in its reducti...