辽宁石油化工大学学报 ›› 2012, Vol. 32 ›› Issue (2): 43-46.

• 化工机械 • 上一篇    下一篇

新型咪唑啉缓蚀剂对20钢的腐蚀效果

常艳兵王为民   

  1. 辽宁石油化工大学石油与天然气工程学院,辽宁抚顺113001
  • 收稿日期:2011-09-07 出版日期:2012-06-25 发布日期:2017-07-06
  • 作者简介:常艳兵(1984-),女,河北承德市,在读硕士
  • 基金资助:
    辽河油田经济贸易置业总公司合作项目(20100100499)

New Imidazoline Corrosion Inhibitors on Steel 20

CHANG Yan-bingWANG Wei-min   

  1. College of Petroleum Engineering,Liaoning Shihua University,Fushun Liaoning 113001,P.R.China
  • Received:2011-09-07 Published:2012-06-25 Online:2017-07-06

摘要:         以油酸、二乙烯三胺为原料,合成了油酸咪唑啉缓蚀剂HS11。采用失重法研究了缓蚀剂HS11及其与油田常用的缓蚀剂JCCR1138、高温缓蚀剂复配后对20钢的缓蚀效果,并结合现场腐蚀产物进行了XRD衍射图谱分析,研究了稠油减粘裂化装置冷却器的腐蚀原因。结果表明:冷却器内同时存在氧化腐蚀和低温HCl-HSHO腐蚀,在HCl-HS-HO腐蚀中硫是腐蚀的主要原因;缓蚀剂HS11的最佳质量分数为200μg/g,此时缓蚀率可达74.31%;缓蚀剂HS11与高温缓蚀剂的复配效果优于与JCCR1138的复配效果,在缓蚀剂HS11与高温缓蚀剂的质量分数分别为200μg/g时,缓蚀率达89.84%。

关键词: 腐蚀 ,  20钢 ,  咪唑啉 ,  缓蚀剂 ,  缓蚀率

Abstract: Oleic acid imidazoline HS11 is synthesized from oleic acid and diethylene triamine. Inhibitor’s performance is evaluated by weight-loss method and the effect after matching with commonly used inhibitors JCCR1138 and Gaowen is also researched. The corrosion mechanism of the water cooler system in viscosity breaking unit is analyzed by means of X-ray diffraction.The results indicate that main corrosion form is not only the oxidation corrosion, but also HCl-H2S-H2O in low temperature, and the sulfur corrosion in the latter plays a main role. HS11 has the best inhibitive effect with 200 μg/g, and the inhibitive rate is up to 74.31% . HS11 mixed with inhibitor Gaowen is better than with inhibitor JCCR1138, and the inhibitive efficiency of it comes to 89.84% when the add level is 200 μg/g respectively. 

Key words:  Corrosion , Steel 20 , Inhibitor , Imidazoline , Inhibitive rate

引用本文

常艳兵,王为民. 新型咪唑啉缓蚀剂对20钢的腐蚀效果[J]. 辽宁石油化工大学学报, 2012, 32(2): 43-46.

CHANG Yan-bing, WANG Wei-min. New Imidazoline Corrosion Inhibitors on Steel 20[J]. Journal of Liaoning Petrochemical University, 2012, 32(2): 43-46.

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