文档介绍：2
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试验研究
304不锈钢在高温环烷酸中的腐蚀研究
郑文炳,孙晓明,代彦霞,王印培
(华东理工大学机械与动力工程学院中国石化上海设备失效分析与预防研究中心, 上海
200237)
摘要:采用自制的高温搅拌釜装置进行环烷酸模拟试验研究,以变压器油和精制环烷酸混合物作
为模拟环烷酸的试验介质,通过调整不同酸值(0. 3~15 mgKOH /g) 、不同温度(220~320 ℃)和不
同流速(0. 6~3. 5 m / s)的范围,对 304不锈钢进行腐蚀速率的测试。结果表明, 304不锈钢的腐蚀
速率与总酸值没有确定关系,只与强腐蚀性环烷酸含量有关;与温度的变化关系是随着温度的升高
而增大;与流速也呈线性递增的关系。
关键词: 304不锈钢;环烷酸;腐蚀;模拟试验
中图分类号: TG142. 71 文献标识码: A 文章编号: 1001 - 4837 (2010) 03 - 0013 - 04
doi: 10. 3969 / j. issn. 1001 - 4837. 2010. 03. 003
Corrosion Research of 304 Sta in less Steel in H igh
Tem pera ture Naphthen ic Ac id
ZHENG W en - b ing, SUN X iao - m ing, DA IYan - x ia, W ANG Y in - pe i
( School ofMechanical and Power Engineering, East China University of Science and Technology, Shang
hai Equipment Failure and Prevention Research Center, SINOPEC, Shanghai 200237, China)
Abstract:Based in high temperature autoclave, the corrosion behavior of 304 stainless steel in different
total acid number ( TAN) range (0. 3~15 mgKOH /g) , different temperature (220~320 ℃) , and differ
ent velocity(0. 6~3. 5 m / s) are studied, with the m ixture of transformer oil and purificatory naphthenic
acid. Test results indicate that the corrosion rate has no definite relationship with TAN, but it rises with
contents of the highly corrosive naphthenic acid. Then the corrosion rate rises as the temperature in
creased. And we also kn