页岩油水相中油含量的测定  

Determination of Oil Content in Water Phase of Shale Oil Exploitation

作　　者：赵莉 云志 梅华[1,2] ZHAO Li;YUN Zhi;MEI Hua(Jiangsu Nuomeng Chemical Co.,Ltd.,Nanjing 210009,China;Nanjing University of Technology,Nanjing 210009,China)

机构地区：[1]江苏诺盟化工有限公司,江苏南京210009 [2]南京工业大学,江苏南京210009

出　　处：《化工技术与开发》2024年第3期68-70,108,共4页Technology & Development of Chemical Industry

摘　　要：本文采用紫外分光光度法,对页岩油水相中的油含量进行分析。对比并筛选了溶剂,优选120号溶剂油萃取水相中的油品,以页岩油为标准油,配制了标准油+120号溶剂油体系,在紫外检验波长228nm条件下,测定并得到了标准曲线。油含量C与吸光度A在50~500mg·L^(-1)范围内具有良好的线性关系,线性方程为:C=652.69A+8.4091,相关系数R^(2)=0.9993。对方法的准确度和精密度进行了实验分析,对不同浓度的页岩油标样进行测定,相对标准偏差为0.6%~1.15%。配制了模拟乳化液,采用超声提取法进行了验证实验,结果一致,表明本方法测定的数据准确可靠。In this paper,ultravioletspectrophotometry was used to analyze the oil content in water phase of shale oil.Solvent selections were compared,and 120 solvent oil was selected for oil extraction in water phase.Shale oil was used as standard oil,and system of(standard oil+120 solvent oil)was formulated.The standard curve was determined under the condition of ultraviolet detection wavelength of 228nm.There was a good linear relationship between oil content(C)and absorbance(A)in the range of 50~500mg/L,and the linear equation was:C=652.69A+8.4091,correlation coefficient R^(2)=0.9993,the accuracy and precision of the method were analyzed experimentally,and the relative standard deviations of shale oil samples with different concentrations ranged from 0.6% to 1.15%.In addition,the simulated emulsion was prepared,and the ultrasonic extraction method was used to verify the experiment.The results were consistent.This method was simple and feasible,and the measured data was accurate and reliable.

关 键 词：油含量 分析 水相 吸光度 页岩油 

分 类 号：O657.32[理学—分析化学]