谷氨酸二乙酸四钠类Fenton氧化法对减阻剂EM50的降黏效果  

Effect of Fenton-like oxidation with tetrasodium glutamate diacetate on viscosity reduction of drag reducer EM50

作　　者：陈文秋 孙三祥[1,2] 谢娟 CHEN Wenqiu;SUN Sanxiang;XIE Juan(School of Environment and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Engineering Center of Water Resources Comprehensive Utilization,Ministry of Education,Lanzhou 730070,China;Key Laboratory of Shaanxi Province for Environmental Pollution Control Technology and Reservoir Protection in Oilfields,College of Chemistry and Chemical Engineering,Xi’an Shiyou University,Xi’an 710065,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]寒旱地区水资源综合利用教育部工程中心,甘肃兰州730070 [3]西安石油大学化学化工学院陕西省油气田环境污染控制与储层保护重点实验室,陕西西安710065

出　　处：《化工环保》2022年第3期274-279,共6页Environmental Protection of Chemical Industry

基　　金：国家级大学生创新创业训练计划项目(201710705030)。

摘　　要：采用谷氨酸二乙酸四钠(GLDA)与FeSO_(4)制备GLDA-Fe^(2+)配合物,作为类Fenton反应催化剂对减阻剂EM50溶液进行降黏处理,考察了EM50溶液降黏效果的影响因素。实验结果表明:在30℃、100 mL EM50溶液中加入0.5 mL H_(2)O_(2)溶液及n(GLDA)∶n(Fe^(2+))=1.0∶1、c(GLDA)=c(Fe^(2+))=0.10 mol/L的配合物溶液1.0 mL的条件下,反应30 min后黏度降低至0.85 mPa·s左右,降黏率达89.50%;溶液pH为6时降黏效果最佳,反应温度和溶液矿化度对溶液初始黏度有影响,但对反应最终黏度影响不大。Using tetrasodium glutamate diacetate(GLDA)and FeSO_(4),the GLDA-Fe^(2+) complex was prepared and used as catalyst for Fenton-like reaction to reduce the viscosity of drag reducer EM50 solution.The factors affecting the viscosity reduction of EM50 solution were investigated.The experimental results show that:The viscosity decreased to about 0.85 mPa·s after 30 min of reaction at 30℃with 0.5 mL of H_(2)O_(2) solution and 1.0 mL of complex solution with n(GLDA)∶n(Fe^(2+))=1.0∶1,c(GLDA)=c(Fe^(2+))=0.10 mol/L added to 100 mL of EM50 solution,and the viscosity reduction rate reaches 89.50%;When the solution pH is 6,the viscosity reduction effect is the best.The reaction temperature and the salinity of the solution have effects on the initial viscosity of the solution,but little effect on the final viscosity.

关 键 词：压裂返排液 减阻剂 黏度 类FENTON氧化 谷氨酸二乙酸四钠 金属离子配合物 

分 类 号：X52[环境科学与工程—环境工程]