Measurements of the density and viscosity of 1-hexene + 1-octene mixtures at high temperatures and high pressures
Introduction
A new improved experimental apparatus [1] for simultaneous measurements of the density and viscosity of liquids and liquid mixtures at high temperatures (from room temperature to 500 K) and at high pressures (up to 250 MPa) was used to accurately measure of the density and viscosity of binary 1-hexene + 1octene mixtures. The method is based on hydrostatic weighing and falling-body techniques. Both techniques were combined into the same measuring cell. The construction of the measuring cell, procedure of measurements, and the uncertainty analyses has been detailed described in our previous publication [1]. In our other publications [2], [3], [4], [5], [6] the method and apparatus were successfully used for accurate measurements of the density and viscosity of n-heptane, monoethylene glycol (MEG), diethylene glycol (DEG), triethylene glycol (TEG), and their binary (50% MEG + 50% DEG, 50% MEG + 50% TEG, 50% DEG + 50% TEG), and ternary (33.33% MEG + 33.33% DEG + 33.34% TEG), and 1-hexene + 1-decene mixtures at temperatures from (293 to 473) K and at pressures up to 245 MPa. In this work we used the same apparatus to measure the density and viscosity of binary 1-hexene + 1-octene mixtures at high temperatures from (298 to 470) K and at high pressures (up to 196 MPa).
A survey of the literature reveals that there are no measurements of the density and viscosity of binary 1-hexene + 1-decene mixtures. The literature search was based on the TRC/NIST archive [7]. Thus, the main objective of the present work is to provide new sets of accurate experimental density and viscosity data for binary 1-hexene + 1-octene mixtures over a wide range of temperature and high pressure for 1-hexene + 1-octene mixtures. Pure component (1-hexene and 1-octene) data of the mixture has been reported previously in our recent publications [4], [5]. Another objective of the present study is to develop Tait-type equation of state (EOS) and viscosity correlation model for liquid binary 1-hexene + 1-octene mixture. This work is a part of a continuing program on the thermodynamic and transport properties of unsaturated hydrocarbons at high temperatures and high pressures.
Section snippets
Experimental
The details of the high-temperature and high-pressure apparatus and procedures (the physical basis and theory of the method and the uncertainty assessment) used for the present density and viscosity measurements have been described in our previous publication [1] and were used without modification. Since the method has been described fully in [1], it will be not necessary to give here the details bearing on the present experiments. Brief information will be given below. The method is based on
Density
Measurements of the density of 1-hexene + 1-octene mixtures as a function of temperature, pressure, and concentration were performed at three concentrations (0.200, 0.429, and 0.692 mole fraction of 1-octene) for temperatures from (298 to 470) K. The pressure ranged from (0.098 to 196) MPa. The pure component (1-hexene and 1-octene) densities and viscosities were reported in our previous publications [4], [5] using the same technique. The experimental results are presented in Table 2. Some selected
Conclusions
The density and viscosity of liquid binary mixtures 1-hexene + 1-octene have been simultaneously measured over the temperature range from (298 to 470) K and at pressures up to 196 MPa using the hydrostatic weighing and falling-body techniques. The measurements were performed along five isobars (0.098, 24.51, 49.03, 98.06, and 196.13) MPa as a function of temperature for three compositions of (0.200, 0.429, and 0.692) mole fraction of 1-octene. The derived values of excess molar volume for 1-hexene +
Acknowledgment
I.M. Abdulagatov thanks the Applied Chemicals and Materials Division at the National Institute of Standards and Technology for the opportunity to work as a Guest Researcher at NIST during the course of this research.
References (65)
- et al.
Experimental study of the density and viscosity of polyethylene glycols and their mixtures at temperatures from 293 K to 473 K and at atmospheric pressure
J. Chem. Thermodyn.
(2011) - et al.
Experimental study of the density and viscosity of polyethylene glycols and their mixtures at temperatures from 293 K to 465 K and at high pressures up to 245 MPa
Fluid Phase Equilib.
(2012) - et al.
Simultaneously measurements of the density and viscosity of 1-hexene + 1-decene mixtures at high temperatures and high pressures
J. Mol. Liquids
(2014) - et al.
Densities, excess volumes, isobaric expansivity, and isothermal compressibility of the (1-ethyl-3-methylimidazolium ethylsulfate + methanol) system at temperatures (283.15 to 333.15) K and pressures from (0.1 to 35) MPa
J. Chem. Thermodyn
(2008) - et al.
Volumetric and derivative properties under pressure for the system 1-propanol + toluene: A discussion of PC-SAFT and SAFT-VR
Fluid Phase Equilib.
(2006) - et al.
Pressure–volume–temperature (PVT) measurements of ionic liquids ([bmim+,PF6−,bmim+,BF4−,bmim+,OcSO4−]) and analysis with the Sanchez–Lacombe equation of state
Fluid Phase Equilib.
(2008) - et al.
On the properties of 1-butyl-3-methylimidazolium octylsulfate ionic liquid
Green Chem.
(2007) - et al.
Experimental densities and derived properties of liquid propan-1-ol at temperatures from 298 to 423 K and at pressures up to 40 MPa
Fluid Phase Equilib.
(2008) - et al.
(p,T) of n-heptane, toluene, and oct-1-ene in the range 298 to 373 K and 0.1 to 400 MPa and representation by the Tait equation
J. Chem. Thermodyn.
(1988) - et al.
PVT properties of liquid and liquid mixtures: a review of the experimental methods and the literature data
Fluid Phase Equilib.
(1985)
An equation-of-state-based model for non-ideal liquid mixtures
Fluid Phase Equilib.
p − (−T − x and viscosity measurements of {x1n-heptane + (1 − x1) n-octane} mixtures at high temperatures and high pressures
J. Chem. Thermodyn.
High-pressure densities and derived volumetric properties (excess, apparent, and partial molar volumes) of binary mixtures of methanol + ethanol
Thermochim. Acta
Viscosity of aqueous calcium chloride solutions at high temperatures and high pressures
Fluid Phase Equilib.
Viscosity of aqueous Lil solutions at 293–525 K and 0.1–40 MPa
Thermochim. Acta
Viscosity of aqueous Ni(NO3)2 solutions at temperatures from (297 to 475) K and at pressures up to 30 MPa and concentration between (0. 050 and 2. 246) mol kg−1
J. Chem. Thermodyn.
Thermophysical properties of 1-ethyl-3-methylimidazolium ethyl sulfate
J. Chem. Thermodyn.
Experimental study of the density and viscosity of n-heptane at temperatures from 298 K to 470 K and pressures up to 245 MPa
Int. J. Thermophys.
Experimental study of the density and viscosity of 1-octene and 1-decene at high temperatures and high pressures
High Temp. - High Press
Experimental study and correlation models of the density and viscosity of 1-hexene and 1-heptene at temperatures from (298 to 473) K and pressures up to 245 MPa
J. Chem. Eng. Data
NIST, ThermoData Engine, NIST Standard Reference Database 103b- Pure Compound, Binary Mixtures, and Chemical Reactions, Version 5.0
Volume expansivities and isothermal compressibilities of imidazolium and pyridinium-based ionic liquids
J. Chem. Eng. Data
Validation of an accurate vibrating-wire densimeter: Density and viscosity of liquids over wide ranges of temperature and pressure
Int. J. Thermophys.
An improved representation for n-alkane liquid densities
Int. J. Thermophys.
Densities of n-alkanes and their mixtures at elevated pressures
Int. J. Thermophys.
The Tait equation: 100 years on
Int. J. Thermophys.
Tait equation for liquid ammonia
J. Chem. Eng. Data
High-pressure densities and derived thermodynamic properties of imidazolium-based ionic liquids
J. Chem. Eng. Data
Densities of toluene, carbon dioxide, carbonyl sulfide, and hydrogen sulfide over a wide temperature and pressure range in the sub- and supercritical state
Ind. Eng. Chem. Res.
Densities of toluene, of butanol and their binary mixtures from 298 K to 400 K, and from 0.5 to 20 MPa
Fluid Phase Equilib.
Liquid densities at elevated pressures of 1-alkanols from C1 to C10: a critical evaluation of experimental data
J. Chem. Eng. Data
Densities of 1-propanol and 2-propanol via a vibrating tube densimeter from 313 to 363 K and up to 25 MPa
J. Chem. Eng. Data
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