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OALib Journal期刊
ISSN: 2333-9721
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燃用废塑料循环流化床锅炉过热器在气相条件下的腐蚀特性研究
, PP. 119-123
Keywords: cfb锅炉,废塑料,20g,盐酸,高温腐蚀
Abstract:
在模拟烟气的条件下，于管式炉中采用腐蚀增重法研究了低参数循环流化床（cfb）锅炉过热器常用材料20g在不同盐酸浓度（0.1%~0.2%）及温度（500~600℃）下的腐蚀特性，并进行动力学分析。结果表明：随着反应温度和hcl浓度的增加，20g耐腐蚀性能总体上降低；在金属表面形成的腐蚀膜呈分层结构，cl元素由内向外含量降低，外层主要成分为fe2o3，含有少量的fe3o4；hcl浓度0.1%、500℃时的腐蚀产物为针状，温度越高针状结构越大。因此，在温度高于600℃、hcl浓度大于0.2%时，20g不适用于抗蚀材料。
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