Mechanism analysis of bubbling corrosion caused by boiler flue gas on metal material

2018 6th International Conference on Mechanical Engineering, Materials Science and Civil Engineering

材料科学;机械制造;土木建筑工程

Zhang, B.Q.^1 ; Wang, S.Z.^1 ; Yang, J.Q.^1 ; Cui, C.C.^1 ; Jiang, Z.H.^1 ; Wang, D.^1 ; Li, J.N.^1

Key Laboratory of Thermo-Fluid Science and Engineering of MOE, School of Energy and Power Engineering, Xi'An Jiaotong University, Xi'an

710049, China^1

关键词: Actual conditions;    Corrosion morphology;    Hydrogen bubbling;    Hydrogen sulfide corrosion;    Materials selection;    Mechanism analysis;    Pressure and temperature;    Process pipelines;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/542/1/012085/pdf
DOI  :  10.1088/1757-899X/542/1/012085

来源: IOP

【 摘 要 】

Hydrogen bubbling is a typical corrosion morphology caused by hydrogen sulfide corrosion. In order to explore hydrogen sulfide corrosion of iron, the composition of flue gas under actual conditions was simulated in this research. Hydrogen sulfide corrosion in flue gas of four kinds of materials selection of ground process pipeline and underground pipe string was researched experimentally. The pressure and temperature of hydrogen bubbling corrosion morphology under actual flus gas conditions were obtained. The electrochemical corrosion mechanism between iron and hydrogen sulfide was investigated.