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Experimental measurement of soret coefficient of binary hydrocarbon mixtures.

机译：二元烃混合物苏特系数的实验测量。

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摘要

Measurement of diffusion coefficients is essential for simulation and prediction of oil reservoirs. Recently, a new experimental set-up has been built at Ryerson University to measure the transport coefficient of transparent liquid mixtures. Laser-based optical digital interferometry techniques using a Mach-Zehnder Interferometer have been used for measuring the diffusion coefficients. This method is non-intrusive, highly accurate, and can provide a detailed 2-D visualization of temperature and concentration fields. Five binary liquid mixtures of Decane (C10H22) - Isobutylbenzene (IBB), Decane (C10H22) - 1,2,3,4 Tetrahydronaphthalene (THN), Dodecane (C12H26) - Isobutylbenzene (IBB), Dodecane (C12H 26) - 1,2,3,4 Tetrahydronaphthalene (THN) and Isobutylbenzene (IBB) - 1,2,3,4 Tetrahydronaphtha-lene (THN) have been selected. The mixtures have been prepared from pure C10H22, C12H 26, IBB and THN for 50% mass fractions. These five binary mixtures are representatives of binary interactions between alkane, one-ring aromatic and two-ring aromatic hydrocarbons. The thermal designs of the diffusion cell, as well as the data analyze method, have been improved. A comparison of experimental data with theoretical analysis based on the Firoozabadi model for measuring thermodiffusion coefficient and Peng-Robinson equation of state (PR-EOS) for measuring the physical properties have been conducted. Experimental results showed a maximum deviation of less than 2% for IBB- C12H26 and THN-IBB and 9% for THN-C12H26 from the available benchmark results.;Accurate knowledge of refractive index is highly relevant to correlations with concentration, temperature, wavelength and pressure in non-intrusive experiments carried out with transparent fluids. It can be used for the identification and characterization of pure materials and for the measurement of concentration of multi-component mixtures. In this current scope, refractive indices of five binary mixtures C10H22-IBB, C10H 22-THN, C12H26-IBB, C12H26-THN and IBB-THN have been measured using both the Mach-Zehnder Interferometer and a multiwavelength Abbemat refractometer. Temperature and concentration coefficients of refractive indices, or so-called contrast factors, as well as their individual correlation to calculate refractive indices have been presented for a wide range of visible spectrums such as 436 nm to 657 nm. Comparison with available literature and mixing rules shows that new correlations can predict the experimental data with deviations of less than 0.001.
机译：扩散系数的测量对于油藏的模拟和预测至关重要。最近，瑞尔森大学建立了一个新的实验装置，以测量透明液体混合物的传输系数。使用马赫曾德尔干涉仪的基于激光的光学数字干涉技术已经用于测量扩散系数。该方法是非侵入性的，高度准确的，并且可以提供温度和浓度场的详细二维可视化。癸烷（C10H22）-异丁苯（IBB），癸烷（C10H22）-1,2,3,4四氢萘（THN），十二烷（C12H26）-异丁基苯（IBB），十二烷（C12H 26）的五种二元液体混合物-1，选择了2,3,4四氢萘（THN）和异丁苯（IBB）-1,2,3,4四氢萘-烯烃（THN）。混合物是由纯C10H22，C12H 26，IBB和THN制成，质量分数为50％。这五种二元混合物代表了烷烃，一环芳烃和二环芳烃之间的二元相互作用。扩散池的热设计以及数据分析方法已得到改进。进行了实验数据与基于用于测量热扩散系数的Firoozabadi模型和用于测量物理性质的Peng-Robinson状态方程（PR-EOS）的理论分析的比较。实验结果表明，与现有基准结果相比，IBB-C12H26和THN-IBB的最大偏差小于2％，THN-C12H26的最大偏差小于9％.;正确的折射率知识与浓度，温度，波长和在非侵入性实验中使用透明流体进行压力测试。它可用于鉴定和表征纯净材料，以及用于测量多组分混合物的浓度。在此当前范围内，使用Mach-Zehnder干涉仪和多波长Abbemat折光仪测量了五种二元混合物C10H22-IBB，C10H 22-THN，C12H26-IBB，C12H26-THN和IBB-THN的折射率。对于宽范围的可见光谱，例如436nm至657nm，已经提出了折射率的温度和浓度系数，或所谓的对比因子，以及它们各自的相关性以计算折射率。与现有文献和混合规则的比较表明，新的相关性可以预测偏差小于0.001的实验数据。

著录项

  • 作者

    Rahman, Md Abdur.;

  • 作者单位

    Ryerson University (Canada).;

  • 授予单位 Ryerson University (Canada).;
  • 学科 Engineering Mechanical.;Engineering General.;Engineering Industrial.
  • 学位 Ph.D.
  • 年度 2013
  • 页码 152 p.
  • 总页数 152
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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