高校化学工程学报2017，Vol.31Issue(5)：1028-1035,8.DOI:10.3969/j.issn.1003-9015.2017.05.003
带压下原油组分(正十六烷+甲基环己烷+叔丁基苯)三元体系黏度与密度的测量与关联
Measurement and Correlation of Viscosity and Density under High Pressures for a Model Ternary System (n-Exadecane+Methyl-Cyclohexane+Butyl-Benzene) of Crude Oil
摘要
Abstract
Density and viscosity are important physical properties of fluids, which have significant effects on crude oil flow, heat transfer and mass transfer. A self-made falling-ball viscometer was used in this study, and the reliability and accuracy of the instrument were verified by toluene and n-hexadecane. N-hexadecane, methylcyclohexane and tert-butyl benzene were selected as model chemicals of long-chain alkane, naphthene and aromatic compound in crude oil, respectively. The density and viscosity values of the ternary system of n-hexadecane + methylcyclohexane + tert-butylbenzene were determined at 318.15K ~ 378.15K under 2.00~20.00 MPa. The results show that both viscosity and density decrease with the increase of temperature, and increase with the increase of pressure. The values vary significantly with mixture composition. The experimental viscosity data are correlated by a self-referencing model. The average absolute deviation (AAD) of the correlation and prediction are 2.80% and 4.90% respectively. The experimental data, model and relevant parameters in this study are of great significance for controlling oil flow in pipeline, calculating oil field reservation, planning EOR processes and designing production equipments.关键词
落柱式黏度计/密度/黏度/自参考模型/正十六烷/甲基环己烷/叔丁基苯Key words
falling-ball viscometer/density/viscosity/self-referencing model/n-hexadecane/methylcyclohexane/tert-butylbenzene分类
化学化工引用本文复制引用
申亚楠,夏淑倩,马沛生,高新晶..带压下原油组分(正十六烷+甲基环己烷+叔丁基苯)三元体系黏度与密度的测量与关联[J].高校化学工程学报,2017,31(5):1028-1035,8.基金项目
国家重点研发计划(2016YFB00600804). （2016YFB00600804）
