一种pH沉淀-溶解切换除油剂的制备及性能评价  

Preparation and performance evaluation of a pH precipitation-dissolution switching oil remover

作　　者：崔莉 林凌[1] 任雯 张明栋 周太刚 CUI Li;LIN Ling;REN Wen;ZHANG Mingdong;ZHOU Taigang(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;China Petroleum Group Safety and Environmental Protection Technology Research Institute,Beijing 102200,China)

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]中国石油集团安全环保技术研究院,北京102200

出　　处：《应用化工》2024年第11期2533-2538,2545,共7页Applied Chemical Industry

基　　金：国家自然科学基金面上项目(52374042);中国石油集团公司基础性前瞻性科技专项课题(2023ZZ1303)。

摘　　要：以十四胺和1,3-丙磺内酯为原料,通过磺化反应合成pH沉淀-溶解切换除油剂十四烷基胺基丙磺酸钠(TMPS),经FTIR、ESI-MS和1H NMR对其结构进行了表征。以表面张力法测定了其临界胶束浓度为1.332×10^(-3)mol/L,γcmc为26.93 mN/m。用5号白油浸润的石英砂作为模拟油砂,通过单因素实验,确定了TMPS对油砂的最佳清洗条件为:除油剂浓度15 mmoL/L,温度65℃,料液比1∶5,清洗时间60 min,搅拌速度1000 rad/min。在该条件下对油砂除油效果可达96.41%,循环5次后仍保持良好的除油效果达80%以上。通过对比除油剂回收前后的核磁氢谱,结构没有变化,能有效解决油基钻屑除油过程中除油剂的浪费。Sodium tetradecylamine propyl sulfonate(TMPS)was synthesized by sulfonation from tetradecylamine and 1,3-propyl sulfonolactone.The structure of TMPS was characterized by FTIR,ESI-MS and 1H NMR.The critical micelle concentration was determined by surface tension method to be 1.332×10^(-3)mol/L andγcmc was 26.93 mN/m.With quartz sand impregnated by No.5 white oil as the simulated oil sand,the oil removal effect of oil sand can reach 96.41%,and the good oil removal effect can still reach more than 80%after 5 cycles.Through the single factor experiment,the optimal cleaning conditions of TMPS for oil sands were determined as follows:the concentration of oil remover was 15 mmoL/L,the temperature was 65℃,the ratio of material to liquid was 1∶5,the cleaning time was 60 min,and the stirring speed was 1000 rad/min.By comparing the nuclear magnetic hydrogen spectra before and after the recovery of oil remover,the structure does not change,which can effectively solve the waste of oil remover in the process of oil based drilling cuttings.

关 键 词：化学清洗 pH切换表面活性剂 除油剂 除油率 

分 类 号：TQ42[化学工程] TE39[石油与天然气工程—油气田开发工程]