用失重法、极化曲线和电化学阻抗谱测试技术研究了三种咪唑啉类缓蚀剂对Q235-A钢在85℃、含有饱和CO_2的模拟油田采出液中的腐蚀行为.结果表明,三种缓蚀剂都是典型的阳极抑制型缓蚀剂,作用方式为"负催化效应";由于所含亲水官能团不同,三种缓蚀剂吸附成膜速度具有较大差别.
Inhibition performance of three kinds of imidazoline derivative inhibitors for Q235-A steel in the simulated producing well water saturated with CO_2 at 85℃ were studied using weight loss and electrochemistry techniques including electrochemical impedance spectroscopy(EIS)and potentiodynamic polarization.The results of weight loss showed that the three kinds of imidazoline derivative inhibitors all had good inhibitor properties at concentration of 40 mg/L,the inhibition efficiency of inhibitor HSJ-3 was up to 80%.The sharp decrease of anodic current density and positive shift of corrosion potential(E_(corr))indicated that these imidazoline derivative inhibitors were all anodic inhibitors which worked as"negative catalysis".The results of EIS showed that the film of inhibitor HSJ-1 with alkyl formed slowly;the film of inhibitor HSJ-2 with thiourido group formed fast and could be auto-repaired;the film of inhibitor HSJ-3 with phosphonic group also formed fast,but decayed in a short time.
参考文献
| [1] | 侯建国,路民旭,常炜,陈长风,孙冬柏,安维杰,王学双.原油对CO2腐蚀过程的影响及相应腐蚀速率预测研究进展[J].中国腐蚀与防护学报,2005(02):124-128. |
| [2] | 赵景茂,顾明广,左禹.碳钢在二氧化碳溶液中腐蚀影响因素的研究[J].北京化工大学学报(自然科学版),2005(05):71-74. |
| [3] | 李春福,王斌,张颖,罗平亚.油气田开发中CO2腐蚀研究进展[J].西南石油学院学报,2004(02):42-46. |
| [4] | S. L. Wu;Z. D. Cui;F. He .Characterization of the surface film formed from carbon dioxide corrosion on N80 steel[J].Materials Letters,2004(6):1076-1081. |
| [5] | 林冠发,白真权,赵新伟,郑茂盛,路民旭.温度对二氧化碳腐蚀产物膜形貌特征的影响[J].石油学报,2004(03):101-105,109. |
| [6] | 万里平,孟英峰,梁发书.油气田开发中的二氧化碳腐蚀及影响因素[J].全面腐蚀控制,2003(02):14-17. |
| [7] | 蒋秀,骆素珍,郑玉贵,柯伟.炔氧甲基季胺盐和咪唑啉对N80在饱和CO2的3%NaCl溶液中的缓蚀性能研究[J].中国腐蚀与防护学报,2004(01):10-15. |
| [8] | 陈长风,路民旭,赵国仙,严密林,白真权,杨延清.N80油管钢CO2腐蚀点蚀行为[J].中国腐蚀与防护学报,2003(01):21-25. |
| [9] | 陈长风,赵国仙,路民旭,杨延清,李鹤林.N80钢CO2腐蚀产物膜研究[J].中国腐蚀与防护学报,2002(03):143-147. |
| [10] | 张学元,余刚,王凤平,杜元龙.Cl-对API P105钢在含CO2溶液中的电化学腐蚀行为的影响[J].高等学校化学学报,1999(07):1115-1133. |
| [11] | 陈长风,路民旭,赵国仙,白真权,严密林,杨延清.N80钢CO2腐蚀电极过程交流阻抗分析[J].金属学报,2002(07):770-774. |
| [12] | 姜德成,刘福国.新型三唑衍生物缓蚀剂在HCl中的缓蚀性能[J].中国腐蚀与防护学报,2008(04):231-234,239. |
| [13] | 王佳 .有机缓蚀剂作用机理和脱附行为的研究[D].中国科学院金属研究所,1990. |
| [14] | 刘福国,杜敏,张静,仇萌.咪唑啉衍生物缓蚀剂对碳钢在CO2盐水中的缓蚀机理[J].物理化学学报,2008(01):138-142. |
| [15] | 刘福国,杜敏.新型复配缓蚀剂对G105钢在NaCl溶液中缓蚀行为的影响[J].金属学报,2007(09):989-993. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%