新型吲哚嗪类酸化用缓蚀剂研究  

Research on novel indolizine corrosion inhibitor for acidification

作　　者：闫治涛 杨震 王冰冰 丁名臣[2] 王梓晨 吕志凤 王业飞[2] YAN Zhi-tao;YANG Zhen;WANG Bing-bing;DING Ming-chen;WANG Zi-chen;LV Zhi-feng;WANG Ye-fei(Dongsheng Jinggong Petroleum Development Group Co.,Ltd.,Shengli Oil Field,Dongying 257051,China;School of Petroleum Engineering,China University of Petroleum(East China),Qingdao 266580,China;College of Science,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]胜利油田东胜精攻石油开发集团股份有限公司,山东东营257051 [2]中国石油大学(华东)石油工程学院,山东青岛266580 [3]中国石油大学(华东)理学院,山东青岛266580

出　　处：《应用化工》2021年第7期1801-1806,共6页Applied Chemical Industry

基　　金：国家重点研发计划政府间国际科技创新合作重点专项(2021YFE0107000);国家自然科学基金面上项目(52074339)。

摘　　要：由一种传统酸化缓蚀主剂“氯化苄基喹啉季铵盐”经缩合得到一种新型二聚物。通过核磁共振、红外等表征确认季铵盐及其缩合物的纯度与化学结构后,通过静态失重、电化学评价等对比研究了二聚缩合物与传统季铵盐在15%浓盐酸中对N80钢的缓蚀性能,并结合分子动力学模拟结果探讨了其缓蚀机理。结果表明,缩合物较传统季铵盐缓蚀性能显著增强,在加量为0.03%时,便可将90℃、15%盐酸中N80试片的腐蚀速率降至5.0 g/(m 2·h)以下,而后者在加量为1%时,仅可将腐蚀速率降低至233.72 g/(m 2·h)。电化学评价结果显示,二聚缩合物是以阳极型为主的混合型缓蚀剂,且具有相较于其前体物季铵盐更低的生物毒性,体现出一定的低毒环保优势。The inhibitive dimer indolizine derivative was synthesized from N-benzylquinolinium chloride,which is used as the key component among the conventional acidizing corrosion inhibitors.The accurate chemical structures of the quinolinium salts were characterized by IR and NMR.The anti-corrosion performance of the inhibitors to N80 steel was investigated by static weight loss measurement as well as electrochemical method in 15% hydrochloric acid.The results showed that the corrosion speed of N80 steel at 90℃ in 15% hydrochloric acid was reduced to 5.0 g/(m^(2)·h)at 0.03% concentration of the derivative,while the corrosion speed merely reached 233.72 g/(m^(2)·h)at 1% concentration of the N-benzylquinolinium chloride.Polarization results indicate that the examined two compounds are of mixed-type inhibitor.The results of the biotoxicity test confirmed that the indolizine derivatives could exhibit the low-toxic advantages compared with the precursor quaternary ammonium salt inhibitor.

关 键 词：酸化缓蚀剂 喹啉苄氯盐 缩合反应 静态失重法 电化学 

分 类 号：TQ047[化学工程] TE357.46[石油与天然气工程—油气田开发工程]