Corrosion Characteristics of Downstream Metal Material of Boiler System in Solution of By-product Ammonium Bisulfate from SCR Denitrification

doi:10.11902/1005.4537.2015.155

Journal of Chinese Society for Corrosion and protection

2016, Vol. 36

Issue (4): 335-342 DOI: 10.11902/1005.4537.2015.155

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Corrosion Characteristics of Downstream Metal Material of Boiler System in Solution of By-product Ammonium Bisulfate from SCR Denitrification

Shuangchen MA¹(

),Yue DENG¹,Wenlong WU²,Yu TAN¹,Linan ZHANG¹,Feng CHAI¹,Panpan SUN¹,Xiaoni ZHANG²

1. College of Environmental Science and Engineering, North China Electric Power University (Baoding), Baoding 071003, China
2. Electric Power Test Research Institute of Henan Province, Zhengzhou 450052, China

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Abstract

The corrosion behavior of the boiler tail material which is made of carbon steel and stainless steel in solutions of ammonium bisulfate (ABS) and H₂SO₄ respectively was studied by means of mass loss measurement and potentiodynamic polarization curve as well as SEM/EDS and XPS. The results showed that: stainless steel has better corrosion resistance to ABS, and with the increase of ABS solution concentration, corrosion becomes more intensive. The corrosion products consist of Fe₂O₃, FeOOH, Fe₃O₄, iron sulfate and a small amount of iron carbon oxide. The corrosion process of carbon steel and stainless steel is similar in the solutions with the same concentration of ABS and sulfuric acid. It can be concluded that ABS has stronger corrosivity. The corrosion mechanism is that hydrogen depolarization first may occur during the corrosion of carbon steel, and then generate hydrogen. As the acid consumption, as well as the effect of dissolved oxygen in the solution, the oxygen depolarization corrosion will happen on metal surface, Fe²⁺is then further oxidized to Fe³⁺, produces a series of secondary reaction, to generate iron oxide and sulfate, etc.

Key words: SCR ABS H2SO4 weight loss method corrosion performance

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	Shuangchen MA
	Yue DENG
	Wenlong WU
	Yu TAN
	Linan ZHANG
	Feng CHAI
	Panpan SUN
	Xiaoni ZHANG

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Shuangchen MA,Yue DENG,Wenlong WU,Yu TAN,Linan ZHANG,Feng CHAI,Panpan SUN,Xiaoni ZHANG. Corrosion Characteristics of Downstream Metal Material of Boiler System in Solution of By-product Ammonium Bisulfate from SCR Denitrification. Journal of Chinese Society for Corrosion and protection, 2016, 36(4): 335-342.

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https://www.jcscp.org/EN/10.11902/1005.4537.2015.155 OR https://www.jcscp.org/EN/Y2016/V36/I4/335

Table 1 Chemical compositions of 20# carbon steel and 304 stainless steel (mass fraction / %)

Fig.1 SEM images of carbon steel after corrosion in 3000 mg/L ABS (a) and 3000 mg/L H₂SO₄ (b) solution

Fig.2 SEM image of 304 stainless steel after corrosion in 3000 mg/L ABS solution

Fig.3 Corrosion rates of 20# carbon steel in different concentrations of ABS and sulfuric acid solutions

Table 2 Mass changes and corrosion rates of 20# carbon steel during corrosion

Table 3 Mass changes and corrosion rates of 304 stainless steel during corrosion

Fig.4 Corrosion rates of 304 stainless steel in different co-ncentrations of ABS and sulfuric acid solutions

Fig.5 EDS results and corrosion surface compositions of carbon steel immersed in 3000 mg/L(a) and 30000 mg/L (b) ABS solutions for 60 d

Fig.6 Potentiodynamic polarization curves of 20# carbon steel in different concentrations of ABS solution

Fig.7 Potentiodynamic polarization curves of 20# carbon steel in 3000 mg/L ABS and H₂SO₄ solutions

Fig.8 Potentiodynamic polarization curves of 304 stainless steel in different concentrations of ABS solution

Fig.9 Potentiodynamic polarization curves of 304 stainless steel in 3000 mg/L ABS and H₂SO₄ solutions

Fig.10 XPS full spectrum of 20# carbon steel immersed in 300 mg/L (a) and 3000 mg/L (b) ABS solutions for 60 d

Fig.11 C1s (a, d), O1s (b, e), Fe2p (c, f) and S2p (g) peaks of 20# steel after corrosion in 300 mg/L (a~c) and 30000 mg/L (d~g) ABS solutions for 60 d

[1]	Long X L, Xin Z L, Wang H X, et al.Simultaneous removal of NO and SO2 with hexamminecobalt (II) solution coupled with the hexamminecobalt (II) regeneration catalyzed by activated carbon[J]. Appl. Catal. B-Enviro., 2004, 54: 25
[2]	Ma S C, Jin X, Sun Y X, et al.The formation mechanism of ammonium bisulfate in SCR flue gas denitrification process and control[J]. Therm. Power Gener., 2010, 39(8): 12
[3]	Ma S C, Guo M, Song H H, et al.Formation mechanism and influencing factors of ammonium bisulfate during the selective catalytic reduction process[J]. Therm. Power Gener., 2014, 43(2): 75
[4]	Xiong Z B, Lu C M, Han K H, et al.Effect of precipitants on selective catalytic reduction of NO by NH3 over iron-cerium mixed metal oxide catalyst[J]. J. China Coal Soc., 2013, 38(1): 201
[4]	(熊志波, 路春美, 韩奎华等. 沉淀剂对铁铈复合氧化物催化剂SCR脱硝性能的影响[J]. 煤炭学报, 2013, 38(1): 201)
[5]	Liu F D, Shan W P, Shi X Y, et al.Vanadium-based catalysts for the selective catalytic reduction of NOx with NH3[J]. Prog. Chem., 2012,24(4): 446
[6]	Gildas G, Kamel B, Nadia H, et al.The corrosion protection behavior of zinc rich epoxy paint in 3%NaCl solution[J]. Adv. Chem. Eng. Sci., 2011, 1(2): 51
[7]	Tan Y, Liang K X, Zhang S H.Semiconductor properties of the passive film formed on Ni201 in neutral solution[J]. Acta Metall. Sin., 2012, 48(8): 971
[7]	(檀玉, 梁可心, 张胜寒. 光电化学响应分析Ni201在中性溶液中形成表面钝化膜的半导体性质[J]. 金属学报, 2012, 48(8): 971)
[8]	Nagarajan S, Karthega M, Rajendran N.Pitting corrosion studies of super austenitic stainless steels in natural sea water using dynamic electrochemical impedance spectroscopy[J]. J. Appl. Electrochem., 2007, 37: 195
[9]	Zhou J L, Li X G, Du C W, et al.Anodie electrochemical behavior of X80 pipeline steel in NaHCO3 solution[J]. Acta Metall. Sin., 2010, 46(2): 251
[9]	(周建龙, 李晓刚, 杜翠薇等. X80管线钢在NaHCO3溶液中的阳极电化学行为[J]. 金属学报, 2010, 46(2): 251)
[10]	Wang J Y, Kong X D.Electrochemical corrosion behavior of two Al-based alloys in 3%NaCl solution[J]. Corros. Sci. Prot. Technol., 2011, 23(1): 41
[10]	(汪俊英, 孔小东. 两种铝合金在3%NaCl溶液中的腐蚀特性[J].腐蚀科学与防护技术, 2011, 23(1): 41)
[11]	Chen F, Xie L X, Sun C, et al.Study the corrosion phenomenon of aluminum alloy in the seawater by potentiodynamic polarization curve method[J]. Tianjin Chem. Ind., 2014, 28(5): 12
[11]	(陈飞, 解利昕, 孙晨等. 动电位极化曲线法研究铝合金材料在海水中腐蚀现象[J]. 天津化工, 2014, 28(5): 12)
[12]	Yue C B, Fang D, Liu L, et al.Synthesis and application of task-specific ionic liquids used as catalysts and/or solvents in organic unitreactions[J]. J. Mol. Liq., 2011, 163(3): 99

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