甲醇转化炉预热段出口管线腐蚀原因
Corrosion Reason of Outlet Pipe for Preheating Stage in a Methanol Reformer
摘 要
通过宏观检查、壁厚测试、化学成分分析、金相检验及腐蚀产物分析等方法对甲醇转化炉预热段出口管线进行腐蚀原因分析。结果表明,造成管线腐蚀减薄的主要原因是高温碳化腐蚀,提出了选材建议及工艺改进措施。
转化炉
碳化腐蚀(金属粉化)
减薄
methanol
reformer
carbonization (metal dusting)
thinning
Abstract
The corrosion reason of outlet pipe for preheating stage in a methanol reformer was analyzed by means of macrography, thickness testing, chemical composition analysis, metallographic examination and corrosion product analysis. The results show that metal dusting caused by carbonization was the main reason for the pipeline corrosion thinning . Some suggestions about the materials selecton and technology improvement measures were proposed.
中图分类号 TG172
所属栏目 失效分析
基金项目
收稿日期 2013/1/22
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备注柏明清(1981-),工程师,学士,从事特种设备检验与失效分析,
引用该论文: BAI Ming-qing,ZHOU Yang,WEI Chao,WANG Yan-fang,HUANG Kai-xuan. Corrosion Reason of Outlet Pipe for Preheating Stage in a Methanol Reformer[J]. Corrosion & Protection, 2013, 34(12): 1147
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参考文献
【1】李铁藩.金属高温氧化和热腐蚀[M].北京: 化学工业出版社,2003.
【2】王猛,王全礼,杨建炜,等.高炉布料滑槽金属碳化腐蚀失效分析[J].物理测试,2011,29(6):35-40.
【3】PIPPEL E, WOLTERSDORF J, SCHNEIDER R. Micromechanisms of metal dusting on Fe-base and Ni-base alloys[J]. Materials and Corrosion,1998,49,309-316.
【4】GRABKE H J. Thermodynamics, mechanisms and kinetics of metal dusting[J]. Materials and Corrosion,1998, 49,303-308.
【5】NAWANCY Y V. Degradation of mechanical strength of pyrolysis furnace tubes by high-temperature carburization in a petrochemical plant[J]. Engineering Failure Analysis,2009,16(7):2171.
【6】GRABKE H J, SCHNEIDER A. Carburization, carbide formation, metal dusting, coking[J]. Material in tehnology,2002,36(6):297-305.
【7】曹楚南.腐蚀电化学原理[M].北京: 化学工业出版社,2008.35-37.
【2】王猛,王全礼,杨建炜,等.高炉布料滑槽金属碳化腐蚀失效分析[J].物理测试,2011,29(6):35-40.
【3】PIPPEL E, WOLTERSDORF J, SCHNEIDER R. Micromechanisms of metal dusting on Fe-base and Ni-base alloys[J]. Materials and Corrosion,1998,49,309-316.
【4】GRABKE H J. Thermodynamics, mechanisms and kinetics of metal dusting[J]. Materials and Corrosion,1998, 49,303-308.
【5】NAWANCY Y V. Degradation of mechanical strength of pyrolysis furnace tubes by high-temperature carburization in a petrochemical plant[J]. Engineering Failure Analysis,2009,16(7):2171.
【6】GRABKE H J, SCHNEIDER A. Carburization, carbide formation, metal dusting, coking[J]. Material in tehnology,2002,36(6):297-305.
【7】曹楚南.腐蚀电化学原理[M].北京: 化学工业出版社,2008.35-37.
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