水含量对超临界<strong>CO<sub>2</sub></strong> 输送管道腐蚀的影响

水含量对超临界CO₂ 输送管道腐蚀的影响

胡丽华, 衣华磊, 杨维健, 孙冲, 孙建波

Effect of Water Content on Corrosion Behavior of X65 Pipeline Steel in Supercritical CO₂ Fluids

HU Lihua, YI Hualei, YANG Weijian, SUN Chong, SUN Jianbo

表3 X65钢腐蚀膜XPS图谱中Fe 2p，O 1s和 S 2p的结合能和化合物分析结果

Table 3 Fitting binding energies of Fe 2p, O 1s, and S 2p and the corresponding compounds based on XPS spectra of corrosion products of X65 steel in Fig. 7

Element	0.2% H₂O		0.1% H₂O		0.05% H₂O
Element	Binding energy eV	Fitted species	Binding energy eV	Fitted species	Binding energy eV	Fitted species
Fe 2p	710.8	FeSO₄^[20]	710.8	FeSO₄^[20]	711.3	FeSO₄^[20]
	712.2	FeSO₄^[21]	712.2	FeSO₄^[21]	713.6	FeSO₄^[22]
	724.5	FeOOH^[23]	724.5	FeOOH^[23]	725.3	FeOOH^[23]
O 1s	530.1	FeOOH^[24]	529.7	FeOOH^[25]	530.2	FeOOH^[23]
	531.5	FeOOH^[20]	531.7	FeOOH^[25]	531.8	FeOOH^[26]
	532.2	FeSO₄^[21]	533.7	SO $_{4}^{2 -}$ ^[27]	532.3	FeSO₄^[28]
S 2p	163.7	S^[29]	164.0	S^[30]	-	-
	167.1	SO $_{3}^{2 -}$ ^[21]	168.7	FeSO₄^[28]	168.7	FeSO₄^[28]
	168.6	FeSO₄^[21]	-	-	-	-