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林产化学与工业 ›› 2011, Vol. 31 ›› Issue (6): 83-86.

• 研究报告 • 上一篇    下一篇

糠醛对碳钢在盐酸中的缓蚀性能研究

杨昌炎1,2, 杨光宏1,2, 刘东2, 丁一刚2, 吴元欣2, 戢峻2, 李姝2   

  1. 1. 黄冈师范学院 化工学院, 湖北 黄冈 438000;2. 武汉工程大学 绿色化工过程 省部共建教育部重点实验室, 湖北 武汉 430073
  • 收稿日期:2011-03-02 修回日期:1900-01-01 出版日期:2011-12-30 发布日期:2011-12-30
  • 通讯作者: 刘 东(1980-),男,湖北荆州人,讲师,博士,主要研究方向为材料与电化学;E-mail:liudong@wit.edu.cn。

Inhibition Performance of Furfural on Carbon Steel in Hydrochloric Acid

YANG Chang-yan1,2, YANG Guang-hong1,2, LIU Dong2, DING Yi-gang2, WU Yuan-xin2, JI Jun2, LI Shu2   

  1. 1. College of Chemical Engineering,Huanggang Normal University, Huanggang 438000, China;2. Key Lab for Green Chemical Process of Ministry of Education,Wuhan Institute of Technology, Wuhan 430073, China
  • Received:2011-03-02 Revised:1900-01-01 Online:2011-12-30 Published:2011-12-30

摘要: 以秸秆催化热解制得的糠醛作为盐酸酸洗缓蚀剂,其缓蚀效率采用失重法和电化学极化法进行了评价,初步探讨其吸附性能。结果表明:糠醛属于混合型缓蚀剂,在盐酸介质中缓蚀作用良好,室温下糠醛添加量为0.7 %时,其缓蚀效率可达91.3 %,能使碳钢的腐蚀反应活化能降低,腐蚀速率明显下降,同时其缓蚀效率受温度的影响较大,其吸附符合Langmuir吸附规律。

关键词: 糠醛, 盐酸酸洗, 缓蚀剂, 缓蚀性能

Abstract: As a corrosion inhibitor, the corrosion inhibition of furfural obtained from straws by microwave pyrolysis was investigated in hydrochloric acid solution. The weight loss and electrochemistry polarization evaluation, and the absorbance of furfural on carbon steel was preliminary discussed. The results showed that furfural, as a complex inhibitor, gives nice inhibition efficiency on carbon steel in hydrochloric acid medium. The inhibition efficiency of furfural was up to 91.3 % when the mass fraction of furfural reaches 0.7 % at room temperature. It can also reduce the activation energy of corrosion reaction. This results in a decrease of corrosion rate. The inhibition performance of furfural is affected by temperature, and its absorbance behaviors can be expressed by the equation of Langmuir model.

Key words: furfural, acid pickling of hydrochloric acid, corrosion inhibitor, inhibition performance

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