Thermophysical Properties of Typical CCUS Fluids: Experimental and Modeling Investigation of Density,Journal of Chemical & Engineering Data

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Thermophysical Properties of Typical CCUS Fluids: Experimental and Modeling Investigation of Density
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-12-31 , DOI: 10.1021/acs.jced.0c00456
Pezhman Ahmadi ₁ , Antonin Chapoy _{1,

2} , Rod Burgass ₁

Affiliation

Density was measured for three multicomponent CO₂ mixtures (with CO₂ molar fractions of 0.406, 0.693, and 0.987) over a wide range of temperature 220–422 K and pressures up to 62 MPa. Measurements were performed using a vibrating tube density meter (VTD) and an isochoric cell. The VTD was calibrated and validated to obtain the densities for all of the mixtures at five isotherms at T > 323 K. Also, using the isochoric cell, density measurements were carried out for one of the mixtures at an extended range of temperature down to 220 K. The results from the VTD were utilized to calculate compressibility factor as well as second and third virial coefficients for all of the samples. For the reported properties, uncertainties associated with the measurements were calculated. Finally, the measured densities and calculated properties were compared against predictions of the GERG-equation of state (EoS).

中文翻译：

典型CCUS流体的热物理性质：密度的实验和模型研究

在220至422 K的最高温度和62 MPa的压力范围内，对三种多组分CO ₂混合物（CO ₂摩尔分数分别为0.406、0.693和0.987）进行了密度测量。使用振动管密度计（VTD）和等容池进行测量。对VTD进行校准和验证，以获取T处五个等温线的所有混合物的密度> 323K。此外，使用等容池，在低至220 K的扩展温度范围内对一种混合物进行了密度测量。VTD的结果用于计算可压缩系数以及第二和第三病毒所有样本的系数。对于报告的特性，计算了与测量相关的不确定性。最后，将测得的密度和计算的特性与GERG状态方程（EoS）的预测进行比较。

更新日期：2021-01-14

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