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.
作者
闫治涛
杨震
王冰冰
丁名臣
王梓晨
吕志凤
王业飞
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)
出处
《应用化工》
CAS
CSCD
北大核心
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)。
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
acidification corrosion inhibitor
N-benzylquinolinium chloride
condensation reaction
weight-loss measurement
electrochemistry
作者简介
闫治涛(1971-),男,河北阜城人,高级工程师,硕士,主要从事油气田压裂、酸化、增产工艺技术及低渗透油藏开发工程研究工作。电话:0546-8687651,E-mail:yanzhitao.slyt@sinopec.com;通讯联系人:王业飞(1968-),男,教授,博士生导师,博士,主要从事精细油田化学品、新型表面活性剂的研发及提高采收率方面研究。电话:0532-86981936,E-mail:wangyf@upc.edu.cn。
