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

doi:10.1016/j.cjche.2018.12.020

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 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 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

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

Hong Xu, Shangkun Zhou, Yiming Zhu, Weigang Xu, Xiaohe Xiong, Houzhang Tan. Experimental study on the effect of H₂S and SO₂ on high temperature corrosion of 12Cr1MoV[J]. Chinese Journal of Chemical Engineering, 2019, 27(8): 1956-1964.

Hong Xu, Shangkun Zhou, Yiming Zhu, Weigang Xu, Xiaohe Xiong, Houzhang Tan. Experimental study on the effect of H₂S and SO₂ on high temperature corrosion of 12Cr1MoV[J]. 中国化学工程学报, 2019, 27(8): 1956-1964.

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

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

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