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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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so2气氛下半焦负载zn/fe/ce高温煤气脱硫剂的再生行为研究
, PP. 110-115
Keywords: 高温煤气,脱硫剂（fe、zn、ce）,再生,so2气氛
Abstract:
？以共沉淀法制备了半焦负载zn/fe/ce（物质的量比1.0：2.0：0.6）高温煤气脱硫剂，在固定床装置上研究了再生反应温度、进口so2浓度以及再生气空速对再生性能的影响，并进行三次硫化-再生循环测试。采用xrd、sem、bet等测试手段对脱硫剂的新鲜样、硫化样及再生样进行了表征。实验结果表明，半焦负载zn/fe/ce高温煤气脱硫剂在so2气氛下600℃就能发生再生反应，且再生后的主要产物为znfe2o4、ceo2和单质硫；最佳再生条件为，再生温度700℃、进口so2体积分数为12%、再生气空速为5000h-1。脱硫剂经过多次硫化-再生循环后，脱硫剂仍能保持较好的硫化活性。
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