[1]李小龙,等.一种新型复配酸化缓蚀剂对N80钢缓蚀性能的影响[J].焊管,2016,39(6):5-9.[doi:10.19291/j.cnki.1001-3938.2016.06.002]
　LI Xiaolong,ZHANG Junping,BI Zongyue,et al.Influence of the Corrosion Inhibition Performance of a New Composite Acidizing Corrosion Inhibitor to N80 Steel[J].,2016,39(6):5-9.[doi:10.19291/j.cnki.1001-3938.2016.06.002]
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一种新型复配酸化缓蚀剂对N80钢缓蚀性能的影响
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
39
期数:
2016年第6期
页码:
5-9
栏目:
试验与研究
出版日期:
2016-06-28

文章信息/Info

Title:
Influence of the Corrosion Inhibition Performance of a New Composite Acidizing
Corrosion Inhibitor to N80 Steel
文章编号:
10.19291/j.cnki.1001-3938.2016.06.002
作者:
李小龙1 ;  2; 张军平3; 毕宗岳1 ;  2; 张娟涛4
1. 国家石油天然气管材工程技术研究中心， 陕西 宝鸡 721008；
2. 宝鸡石油钢管有限责任公司 钢管研究院， 陕西 宝鸡 721008；
3. 西北工业大学 理学院应用化学系， 西安 710129；
4. 中国石油集团石油管工程技术研究院， 西安 710065
Author(s):
LI Xiaolong1; 2;  ZHANG Junping3;  BI Zongyue1; 2;  ZHANG Juantao4
1. Chinese National Engineering Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shaanxi, China;
2. Steel Pipe Research Institute, Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China;
3. Department of Applied Chemistry, School of Natural and Applied Sciences, Northwestern Polytechnical University, Xi’an 710129, Shaanxi, China; 4. CNPC Tubular Goods Research Institute, Xi’an 710065, China
关键词:
N80钢; 缓蚀剂; 喹啉季铵盐; 氯化钙; 电化学测试
Keywords:
N80 steel;  corrosion inhibitor;  quinoline quaternary ammonium salt;  calcium chloride;  electrochemical test
分类号:
TG174.42
DOI:
10.19291/j.cnki.1001-3938.2016.06.002
文献标志码:
A
摘要:
为了研究新型复合酸化缓蚀剂对N80钢的缓蚀效果，以喹啉和氯化苄为原料，在不同温度下合成了喹啉季铵盐，并采用静态失重法和动电位极化曲线方法考察Ca2+及Ca2++Cu2+的加入对合成的喹啉季铵盐在15%HCl溶液中对N80钢缓蚀效果的影响，并通过扫描电镜分析了N80钢在15%HCl溶液中的腐蚀行为。结果表明，合成的喹啉季铵盐的缓蚀效果随着合成反应温度的升高而增强；Ca2+的加入能有效提高喹啉季铵盐在15%HCl溶液中对N80钢的缓蚀效果，但是未达到SY/T 5405—1996行业一级标准要求（腐蚀速率<3 g/（m2+·h））；加入不同比例的Ca2++Cu+后，N80钢的腐蚀速率均小于行业一级标准要求；该复配缓蚀剂主要为混合抑制型缓蚀剂，90 ℃时对N80钢有较好的缓蚀效果，当温度升高到140 ℃时缓蚀效果并不理想，有点蚀坑出现。
Abstract:
Quinoline quaternary ammonium salts were synthesized at different temperatures using quinoline and benzyl chloride. Effect of Ca2+ and Ca2++Cu+ on the corrosion inhibition action of quinoline quaternary ammonium salt for N80 steel in 15%HCl solution were investigated using weight loss method and polarization curve method. The corrosion behavior of N80 steel in 15%HCl solution was analyzed by using scanning electron microscopy method. Results showed that the corrosion efficiency of synthesized quinoline quaternary ammonium salt increased with the increase of the reaction temperature. Addition of Ca2+ could enhance the corrosion efficiency of quinoline quaternary ammonium salt in 15%HCl solution, but can’t meet the SY/T 5405—1996 Class A of the industry standard requirements（corrosion rate<3 g/（m2·h））. When adding different proportions of Ca2++Cu+, the corrosion rate of N80 steels were less than the Class A of industry standard requirements. Electrochemical results showed that the combined inhibitor was mainly a mixed corrosion inhibitor. SEM results showed that the combined inhibitor has a good corrosion efficiency to N80 steel at 90 ℃, but when the temperature raised to 140 ℃, the corrosion efficiency was bad and had corrosive pitting appeared.

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备注/Memo

备注/Memo:
收稿日期： 2016-02-24
作者简介： 李小龙（1988—）， 男， 助理工程师， 主要从事石油管材新产品开发及腐蚀与防护研究。
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