Compressed Liquid Densities of Binary Mixtures of 1-Butanol and Diethylene Glycol Dimethyl Ether from (283 to 363) K at Pressures up to 100 MPa

Abstract

The compressed liquid densities of binary mixtures of 1-butanol and diethylene glycol dimethyl ether (diglyme) have been measured over the temperature range from (283 to 363) K and at pressures up to 100 MPa covering the whole mole fraction of x 1‑butanol = (0, 0.3116, 0.5469, 0.7308, 0.8787, 1). The measurements were carried out using a high-pressure vibrating-tube densimeter with the combined expanded uncertainty (k = 2) of 0.6 kg·m–3. The experimental data were correlated using the modified Tait equation with an absolute average percentage deviation lower than 0.015% for each composition of the mixtures.

P–ρ–T Data and Modeling for Butan-1-ol + n-Octane or n-Decane between 313.15–353.15 K and 0.1–20 MPa

“…(e) Comparison of the calculated pure component density (ρ calc ) of butan-1-ol at various temperatures as a function of pressure ( P ) using MTS EOS as correlated from the experimental data of this work to the data from the literature (ρ source ). □Zúñiga-Moreno et al (2006), ◊Zúñiga-Moreno et al (2007), ○Wong & Hayduk, ×Kariznovi et al, ⧫Torín-Ollarves et al, ■Fang et al, ▲Iglesias-Silva et al…”

Liquid Density of n-Pentene, n-Hexene, and n-Heptene at Temperatures from 283.15 to 363.15 K and Pressures up to 100 MPa

“…Before the experiment, the reference fluids of vacuum and water were used to calibrate the vibrating-tube densimeter over the entire temperature and pressure ranges. The experimental system, calibration procedure, and uncertainty estimation were already described in our previous work. − The combined expanded uncertainties U c ( k = 2, level of confidence = 0.95) are estimated to be U c ( T ) = 16 mK, U c ( p ) = 0.062 MPa ( p ≤ 60 MPa), U c ( p ) = 0.192 MPa (60 MPa < p < 140 MPa), and U c (ρ) = 0.6 kg·m –3 , respectively.…”

Experimental and Modeling Investigations of Density and Viscosity for the Ternary (N-Octane + Ethylcyclohexane + Ethylbenzene) Mixtures

“…For each mixture, the experimental liquid density obtained was correlated using the modified Tait equation ,, ρ ( T , p ) = ρ 0 ( T ) 1 − C nobreak0em0.1em⁡ ln ( false( B ( T ) + p false) / false( B ( T ) + 0.1 false) ) with ρ 0 ( T ) = A 0 + A 1 T + A 2 T 2 + A 3 T 3 B ( T ) = B 0 + B 1 T + B 2 T 2 where T is the temperature in K, p is the pressure in MPa, and parameters A i , B i , and C are determined from correlating the experimental data, which are summarized in Table . In this table, the average absolute deviation (AAD/%), relative deviation (Bias/%), and maximum absolute deviation (MAD/%) between the experimental data and calculated values is also given to demonstrate the validity of parameters.…”

“…The experimental setup utilized to conduct density and viscosity measurements of hydrocarbon mixtures consists of two main sections. The first section is a vibrating-tube densimeter , (the expanded uncertainty of density U c (ρ) is 0.6 kg·m –3 ( k = 2)) including an Anton Paar DMA HPM module, data acquisition instruments, and control units. The second section is a vibrating-wire viscometer , (the expanded relative uncertainty of viscosity U c (η)/η is lower than 0.023 ( k = 2)) including a vibrating-wire module, data acquisition instruments, and control units.…”