• 中文核心期刊
  • CSCD中国科学引文数据库来源期刊
  • 中国科技核心期刊
  • 中国机械工程学会材料分会会刊
Advanced Search
LU Jintao, ZHANG Bo, HUANG Jinyang, YANG Zhen, XU Hongjie. Corrosion Behavior of Candidate Materials Used for Critical Parts of Urea Hydrolysis Equipment in Gas Denitrification[J]. Materials and Mechanical Engineering, 2017, 41(7): 6-12. DOI: 10.11973/jxgccl201707002
Citation: LU Jintao, ZHANG Bo, HUANG Jinyang, YANG Zhen, XU Hongjie. Corrosion Behavior of Candidate Materials Used for Critical Parts of Urea Hydrolysis Equipment in Gas Denitrification[J]. Materials and Mechanical Engineering, 2017, 41(7): 6-12. DOI: 10.11973/jxgccl201707002
shu

Corrosion Behavior of Candidate Materials Used for Critical Parts of Urea Hydrolysis Equipment in Gas Denitrification

  • National Energy R & D Center of Clean and High-Efficiency Fossil-Fired Power Generation Technology, Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710032, China

More Information
  • Received Date: May 11, 2016
  • Revised Date: June 07, 2017
    Graphical Abstract
    • Abstract
  • Corrosion behavior of candidate alloys such as 316L stainless steel, 316Lmod stainless steel, HR3C stainless steel, Inconel718 alloy and TC4 alloy used for critical parts of urea hydrolysis equipment in gas denitrification was studied in simulated urea hydrolysis environment. The results show that different degree of dissolve corrosion was happened for 316L and 316Lmod stainless steel at the initial stage. In the following corrosion stage, corrosion product deposition increased and a large surface of corrosion products exfoliation were observed on 316L stainless steel which was mainly pitting corrosion, while uniform corrosion and deposition of corrosion products dominated the corrosion process for 316Lmod stainless steel. TC4 alloy, Inconel718 alloy and HR3C stainless steel showed a better corrosion resistance compared with 316L and 316Lmod stainless steel. There was a dense titanium oxide layer with 3 μm in thickness formed on surface of TC4 alloy and mixed oxides consisting of Cr2O3 and Fe2O3 formed by hydrothermal synthesis reaction were the main corrosion products. A small amount of dissolve corrosion was observed on Inconel718 alloy at the initial stage and in later stage deposition of corrosion products dominated the corrosion process. Intergranular corrosion was clearly observed in HR3C stainless steel at the initial stage and deposition of corrosion products dominated the following corrosion process of HR3C stainless steel.
    • FullText(HTML)
    • References (16)
  • [1]
    周涛,刘少光,唐名早,等. 选择性催化还原脱硝催化剂研究进展[J]. 硅酸盐学报, 2009, 37(2):317-323.
    [2]
    FORZATTI P. Present status and perspective in de-NOx SCR catalysis[J]. Applied Catalysis A General, 2001, 222(1/2):221-236.
    [3]
    吕洪坤,杨卫娟,周俊虎,等. 尿素溶液高温热分解特性的实验研究[J]. 中国电机工程学报,2010,30(17):35-40.
    [4]
    NOCKERT J, NORELL M, Corrosion at the urea injection in SCR-system during component test[J]. Materials and Corrossion, 2014, 64(1):34-42.
    [5]
    杜成章,刘诚. 尿素热解和水解技术在锅炉烟气脱硝工程中的应用[J]. 华北电力技术,2010(6):39-54.
    [6]
    惠润堂,韦飞,闫世平,等.国产首套尿素水解装置在大型火电厂的工业应用及技术优化[J].中国电力,2014,47(7):150-155.
    [7]
    杜存臣. 奥氏体不锈钢在工业中的应用[J]. 化工设备与管道,2003,40(2):54-57.
    [8]
    丁文炎,邵羽,王建勇,等. 尿素级超低碳奥氏体不锈钢钢管的研制及应用[J]. 钢管,2013, 42(5):35-40.
    [9]
    艾文山,左景伊,吴玖. 氮改善00Cr18Ni5Mo3Si2双相不锈钢应力腐蚀破裂性能的机制[J]. 中国腐蚀与防护学报,1991,11(1):9-16.
    [10]
    SAFURESG N. A new stainless steel for urea service[C]//Eighth Stamicarbon Urea Symposium. Amsterdam, Netherlands:[s.n.],1996.
    [11]
    NAGASHIMA E,IDEGUCHI Y,KITA Y. New duplex stainless steel DP28WTM contributes to safe and reliable operation of urea plant[M].[S.l.]:Ammonia Technical Manual,2004:13-16.
    [12]
    常辉,周廉,王向东. 我国钛工业与技术进展及展望[J]. 航空材料学报,2014,34(4):37-43.
    [13]
    吴剑,李晋,张静江. 尿素生产装置中高压冷凝器的腐蚀研究[J]. 中国腐蚀与防护学报,1986,6(3):235-240.
    [14]
    张述林,李敏娇,王晓波,等. 18-8奥氏体不锈钢的晶间腐蚀[J]. 中国腐蚀与防护学报,2007,27(2):124-128.
    [15]
    SUBRTA J, BOHÁCEKA J, STENGLA V, et al. Uniform particles with a large surface area formed by hydrolysis of Fe2(SO4)3 with urea[J]. Materials Research Bulletin, 1999, 34(6):905-914.
    [16]
    CASIELLO M, IANNONE F, COTUGNO P, et al. Copper (Ⅱ)-catalysed oxidative carbonylation of aminols and amines in water:A direct access to oxazolidinones, ureas and carbamates[J]. Journal of Molecular Catalysis A Chemical, 2015, 407:8-14.
    • Related Articles

Catalog

    Get Citation
    PDF
    XML
    Article views (8) PDF downloads (0) Cited by()
    Turn off MathJax
    Article Contents
    Abstract
    References

    Materials and Mechanical Engineering

    Address：99 Handan Road, ShanghaiPost Code: 200437

    Tel：021-65556775-368Email:mem@mat-test.com

    沪ICP备17055736号-5

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return