摘要
聚丙烯酰胺(HPAM)是聚合物驱技术中最常用的聚合物,能有效提高油田采收率,但同时会产生大量含聚废水。HPAM会使废水具有高乳化性和高黏度的特性,增加采油废水的处理难度。因此需要寻找一种可以快速、高效处理含聚废水的方法。文章设计了一个非平衡态等离子体流动反应器,使用该反应器处理HPAM溶液,研究了放电气体、放电电压、放电时间和溶液浓度对HPAM溶液黏度降低的影响规律。实验结果表明,不同放电气体的降黏效果由高到低为空气、O2、N2、Ar;当放电气体为空气,放电电压50 kV,放电时间为6 s,溶液初始浓度为0.5 g/L时,含聚废水黏度最高可以降低99.87%。同时,测量了处理前后溶液中主要相关物质的变化,进一步分析了溶液黏度下降的机理。研究结果表明,这种非平衡等离子体处理方式是处理含HPAM油田废水的一种很有前途的处理方法。
Polyacrylamide(HPAM)is the most commonly used polymer in polymer flooding technology,which can effectively improve oilfield recovery efficiency.But simultaneously,a large amount of wastewater will be generated.HPAM can make oil production wastewater highly emulsifying and viscous,increasing the difficulty of treating oil production wastewater.Therefore,finding a method to treat polyacrylamide-containing wastewater quickly and efficiently is necessary.This article designs a nonequilibrium plasma flow reactor.We used this equipment to treat partially hydrolyzed HPAM solution and studied the effects of discharge gas,discharge voltage,discharge time,and solution concentration on the viscosity reduction of HPAM solution.The experimental results show that the viscosity reduction effect of different discharge gases ranges from high to low for air,oxygen,nitrogen,and argon.The viscosity of the polymer containing wastewater will reduce by 99.87%when the discharge gas is air,the discharge voltage is 50 kV,the discharge time is 6 s,and the initial concentration of the solution is 0.5 g/L.At the same time,we measured the changes of the main related substances in the solution before and after the treatment and further analyzed the mechanism of the decrease in solution viscosity.The research results of this article indicate that nonequilibrium plasma treatment is a promising alternative method for treating oilfield wastewater containing HPAM.
作者
李森
程卫民
张甜甜
廖晓旭
赵悦彤
马婷婷
LI Sen;CHENG Weimin;ZHANG Tiantian;LIAO Xiaoxu;ZHAO Yuetong;MA Tingting(School of Petroleum and Natural Gas Engineering,School of Energy,Changzhou 213164,China;School of Petroleum Engineering,Northeast Petroleum University,Daqing 163000,China;Xuzhou Water Affairs Bureau,Xuzhou 221008,China)
出处
《真空科学与技术学报》
CAS
CSCD
北大核心
2024年第5期409-416,共8页
Chinese Journal of Vacuum Science and Technology
基金
黑龙江省博士后面上项目(LBH-Z20188)。
