二氧化碳与甲醇、乙醇和1-丙醇二元混合物在313-343 K和15-30 MPa下动态粘度的测量和预测

IF 3.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL

Journal of Supercritical Fluids Pub Date : 2025-01-02 DOI:10.1016/j.supflu.2024.106514

Norihiro Onodera, Ryuichi Oguro, Toshitaka Funazukuri

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引用次数: 0

摘要

在甲醇/1-丙醇组成的整个范围内，温度为313.2 K ~ 343.2 K，压力为15 MPa ~ 30 MPa，根据填料床的压降计算了二氧化碳与甲醇/1-丙醇二元混合物的动态粘度ηm。对不同组合规则下的粗糙-硬球（RHS）模型的精度进行了检验，并与采用微扰链SAFT （PC-SAFT）状态方程（EoS）模型的Eyring理论进行了比较。经Fender-Halsey组合规则和相互作用参数值调整后的RHS模型的平均相对偏差（ARD）为5.0 % (max。在整个甲醇/乙醇/1-丙醇组合物范围内的240组条件下，RD: 23 %)，与之相比为6.3 %(最大。RD: 26 %)的kEyring理论与PC-SAFT EoS模型的优化kEyring值。

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Measurements and prediction of dynamic viscosity of binary mixtures of carbon dioxide and methanol, ethanol and 1-propanol at 313–343 K and 15–30 MPa

The dynamic viscosity η_m of binary mixtures of carbon dioxide and methanol/1-propanol was measured on the basis of the pressure drop in a packed bed, which was calculated using the Ergun equation, at temperatures from 313.2 K to 343.2 K and pressures from 15 MPa to 30 MPa over the entire range of methanol/1-propanol composition. The accuracy of the rough-hard-sphere (RHS) model with various combining rules was tested and compared with that of the Eyring theory with the perturbed-chain SAFT (PC-SAFT) equation of state (EoS) model the authors proposed previously. The average relative deviations (ARD) of the RHS model with the Fender-Halsey combining rule and the interaction parameter value adjusted were 5.0 % (max.RD: 23 %), for 240 sets of conditions over the entire range of methanol/ethanol/1-propanol compositions, as compared with 6.3 % (max.RD: 26 %) of the Eyring theory with PC-SAFT EoS model with the optimized k_Eyring value.

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来源期刊

Journal of Supercritical Fluids 工程技术-工程：化工

CiteScore

7.60

自引率

10.30%

发文量

236

审稿时长

56 days

期刊介绍： The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.

二氧化碳与甲醇、乙醇和1-丙醇二元混合物在313-343 K和15-30 MPa下动态粘度的测量和预测

摘要

二氧化碳与甲醇、乙醇和1-丙醇二元混合物在313-343 K和15-30 MPa下动态粘度的测量和预测