1-甲氧基丙烷-2-醇和2-(2-己氧乙氧基)乙醇在温度从(293.15至473.15)K和压力高达40 MPa下的实验数据:改进的Tait和PC-SAFT模型

IF 2.7 3区 工程技术 Q3 CHEMISTRY, PHYSICAL
Masoume Najafi, Zohre Mokhtari, Hosseinali Zarei
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引用次数: 0

摘要

在(293.15 ~ 473.15)K的12种温度和40 MPa的压力下,测定了纯1-甲氧基丙烷-2-醇和2-(2-己氧乙氧基)乙醇的ρ t实验数据。实验测量采用高压振动管密度计,膨胀密度不确定度为1kg·m−3。此外,在环境压力(81.5 kPa)下,使用Anton Paar DSA 5000在7条等温线T = (293.15 ~ 343.15) K下测量了这些溶剂的密度和声速。得到的pρT数据使用修正的Tait方程进行了有效的相关。这种相关性允许在相同温度和压力范围内推导热膨胀系数(αp)和等温压缩系数(κT)。此外,利用PC-SAFT状态方程(EOS)进一步关联了液相pρT实验数据。利用PC-SAFT EOS的参数,估计了几种热力学性质,包括热膨胀系数(αp)、等温压缩系数(κT)、等压热容(Cp)和声速(u)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
pρT experimental data of 1-methoxypropan-2-ol and 2-(2-hexoxyethoxy) ethanol at temperatures from (293.15 to 473.15) K and pressures up to 40 MPa: modified Tait and PC-SAFT modeling
pρT experimental data of pure 1-methoxypropan-2-ol and 2-(2-hexoxyethoxy) ethanol were measured at twelve different temperatures ranging from (293.15 - 473.15) K and at pressures up to 40 MPa. The experimental measurements were conducted using a high-pressure vibrating tube densimeter, with a combined expanded density uncertainty of 1kg·m3. Furthermore, the densities and speed of sounds of these solvents were measured at seven isotherms, T = (293.15 - 343.15) K, under ambient pressure (81.5 kPa), using an Anton Paar DSA 5000. The obtained pρT data obtained were effectively correlated using a modified Tait equation. This correlation allowed for derivation of thermal expansion coefficient (αp) and isothermal compressibility (κT) across the same temperature and pressure ranges. In addition, the PC-SAFT equation of state (EOS) was employed to further correlate the liquid pρT experimental data. Using the parameters of the PC-SAFT EOS, several thermodynamic properties were estimated, including the thermal expansion coefficient (αp), isothermal compressibility (κT), isobaric heat capacity (Cp), and speed of sound (u).
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来源期刊
Fluid Phase Equilibria
Fluid Phase Equilibria 工程技术-工程:化工
CiteScore
5.30
自引率
15.40%
发文量
223
审稿时长
53 days
期刊介绍: Fluid Phase Equilibria publishes high-quality papers dealing with experimental, theoretical, and applied research related to equilibrium and transport properties of fluids, solids, and interfaces. Subjects of interest include physical/phase and chemical equilibria; equilibrium and nonequilibrium thermophysical properties; fundamental thermodynamic relations; and stability. The systems central to the journal include pure substances and mixtures of organic and inorganic materials, including polymers, biochemicals, and surfactants with sufficient characterization of composition and purity for the results to be reproduced. Alloys are of interest only when thermodynamic studies are included, purely material studies will not be considered. In all cases, authors are expected to provide physical or chemical interpretations of the results. Experimental research can include measurements under all conditions of temperature, pressure, and composition, including critical and supercritical. Measurements are to be associated with systems and conditions of fundamental or applied interest, and may not be only a collection of routine data, such as physical property or solubility measurements at limited pressures and temperatures close to ambient, or surfactant studies focussed strictly on micellisation or micelle structure. Papers reporting common data must be accompanied by new physical insights and/or contemporary or new theory or techniques.
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