SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (8): 1956-1964.DOI: 10.1016/j.cjche.2018.12.020

• Energy, Resources and Environmental Technology • Previous Articles     Next Articles

Experimental study on the effect of H2S and SO2 on high temperature corrosion of 12Cr1MoV

Hong Xu1, Shangkun Zhou2, Yiming Zhu2, Weigang Xu3, Xiaohe Xiong2, Houzhang Tan2   

  1. 1 Jiangsu Fangtian Electric Technology Co. Ltd., Nanjing 211102, China;
    2 MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
    3 School of Mechanical Engineering, Changzhou University, Changzhou 213164, China
  • Received:2018-10-09 Revised:2018-12-16 Online:2019-11-16 Published:2019-08-28
  • Contact: Xiaohe Xiong
  • Supported by:
    The present work was supported by the National Key Research and Development Plan of China (No. 2018YFB0604203).

Experimental study on the effect of H2S and SO2 on high temperature corrosion of 12Cr1MoV

Hong Xu1, Shangkun Zhou2, Yiming Zhu2, Weigang Xu3, Xiaohe Xiong2, Houzhang Tan2   

  1. 1 Jiangsu Fangtian Electric Technology Co. Ltd., Nanjing 211102, China;
    2 MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
    3 School of Mechanical Engineering, Changzhou University, Changzhou 213164, China
  • 通讯作者: Xiaohe Xiong
  • 基金资助:
    The present work was supported by the National Key Research and Development Plan of China (No. 2018YFB0604203).

Abstract: Aiming at the high temperature corrosion in a coal-fired boiler, the effect of H2S and SO2 on the corrosion of 12Cr1MoV under the water wall condition has been investigated by experiments. The results indicate that H2S can promote the corrosion significantly, and the coarse porous oxide film formed cannot stop the progress of corrosion. While SO2 presents little effect on the corrosion. The main composition of the surface of 12Cr1MoV corrosion products is Fe2O3. With H2S in the atmosphere, the corrosion gradually develops into deeper layers by forming FeS, FeO and Fe2O3 alternately. The corrosion rate is doubled for every 50℃ increase in temperature at 400-500℃.

Key words: High temperature corrosion, Water wall, 12Cr1MoV, H2S, SO2

摘要: Aiming at the high temperature corrosion in a coal-fired boiler, the effect of H2S and SO2 on the corrosion of 12Cr1MoV under the water wall condition has been investigated by experiments. The results indicate that H2S can promote the corrosion significantly, and the coarse porous oxide film formed cannot stop the progress of corrosion. While SO2 presents little effect on the corrosion. The main composition of the surface of 12Cr1MoV corrosion products is Fe2O3. With H2S in the atmosphere, the corrosion gradually develops into deeper layers by forming FeS, FeO and Fe2O3 alternately. The corrosion rate is doubled for every 50℃ increase in temperature at 400-500℃.

关键词: High temperature corrosion, Water wall, 12Cr1MoV, H2S, SO2