| 克劳斯尾气焚烧炉余热锅炉的露点腐蚀及防护措施 |
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| 引用本文： | 马金伟,古小红,张延丰,尹崎岭,张杰,卢雪梅. 克劳斯尾气焚烧炉余热锅炉的露点腐蚀及防护措施[J]. 石油化工腐蚀与防护, 2021, 0(1) |
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| 作者姓名： | 马金伟 古小红 张延丰 尹崎岭 张杰 卢雪梅 |
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| 作者单位： | 甘肃蓝科石化高新装备股份有限公司;中国石化股份有限公司中原油田普光分公司 |
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| 基金项目： | 国家科技重大专项“尾气余热回收锅炉高效换热结构设计与管接头连接技术研究”(2016ZX05017-006)。 |
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| 摘 要： | 某天然气净化装置尾气焚烧余热锅炉换热管发生腐蚀泄漏。采用外观检查、无损检测、腐蚀产物成分分析和形貌观察等手段对余热锅炉换热管进行检测分析,结果表明,该尾气焚烧余热锅炉换热管的腐蚀失效是硫酸露点腐蚀及硫酸盐共同作用的结果。提出了空气吹扫、干燥氮气保护、修改焚烧炉底部设计和稳定操作等防护措施。
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| 关 键 词： | 尾气焚烧余热锅炉 露点腐蚀 停工保护 腐蚀控制 |
Dew Point Corrosion and Protection Measures of Waste Heat Boiler of Claus Tail Gas Incinerator |
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| MA Jinwei,GU Xiaohong,ZHANG Yanfeng,YIN Qiling,ZHANG Jie,LU Xuemei. Dew Point Corrosion and Protection Measures of Waste Heat Boiler of Claus Tail Gas Incinerator[J]. Petrochemical Corrosion and Protection, 2021, 0(1) |
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| Authors: | MA Jinwei GU Xiaohong ZHANG Yanfeng YIN Qiling ZHANG Jie LU Xuemei |
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| Affiliation: | (Lanpec Technologies Limited,Lanzhou 730070,China;Puguang Company,SINOPEC Zhongyuan Oilfield,Dazhou 635000,China) |
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| Abstract: | Corrosion leakage occurred at the heat exchange pipe in a waste heat boiler of tail gas incineration in a natural gas purification plant.Then the pipes were tested and analyzed by means of appearance inspection,nondestructive testing,corrosion product composition analysis and morphology observation.The results showed that the failure of heat exchange pipes was mainly caused by the dew point corrosion of low temperature sulfuric acid and sulphate.Furthermore,protective measures such as air purge,dry nitrogen protection,modification of incinerator bottom design,and stable operation were put forward. |
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| Keywords: | waste heat boiler of tail gas incineration dew point corrosion shutdown protection corrosion control |
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