HCI对沸腾流化床燃烧器换热管腐蚀和磨损影响的研究

1.中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室沈阳 110015

2.劳伦斯伯克利国立实验室材料科学部美国伯克利 CA94720

基金项目: 国家自然科学基金(59725101) 美国电力研究所项目

CORROSION-WEAR BEHAVIOR OF IN-BED TUBES DUE TO HCI AND PARTICLES IMPACTS IN A SIMULATED BUBBLING FLUIDIZED BED

采用模拟密集颗粒对换热管底部的冲击作用的装置,研究氯化物对埋入燃烧床中管材耗损的影响及其机制.结果表明HCl加剧材料的耗损,其耗损率随温度升高而上升.同时研究磨损表面和腐蚀产物的显微组织和化学组成的特征.HCl对耗损率的影响主要在于它促进氧化并降低氧化膜的粘附性.

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