Batch investigation on volumetric, acoustic and calorimetric properties for binary mixtures of aniline + (diethanolamine, triethanolamine, butylamine and hexylamine) from experimental and theoretical point of view

Tehrani, Mehdi Dadkhah; Iloukhani, H.; Khanlarzadeh, Khatereh; Azizi, Elmira

doi:10.1016/j.molliq.2020.114258

Cited by 3 publications

(2 citation statements)

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“…However, at higher mole fractions of NVP, poor interstitial accommodation of one moiety into the voids created by other moiety lead to a more compressible binary mixture. 63 More negative excess isentropic compressibility (κ s E ) values up to 0.5-mole fraction (x 1 ) of NVP have been observed for the NVP + DEGMBE system as compared to NVP + DEGMEE. This signifies greater compactness of the NVP + DEGMBE system as compared to the NVP + DEGMEE system.…”

Section: Resultsmentioning

confidence: 96%

“…The negative values at lower mole fractions of NVP (up to 0.5 x 1 ) with DEGMEE and DEGMBE imply that strong heteromolecular interactions occur, leading to a closely packed and less compressible binary mixture. However, at higher mole fractions of NVP, poor interstitial accommodation of one moiety into the voids created by other moiety lead to a more compressible binary mixture . More negative excess isentropic compressibility (κ s E ) values up to 0.5-mole fraction ( x 1 ) of NVP have been observed for the NVP + DEGMBE system as compared to NVP + DEGMEE.…”

Section: Resultsmentioning

confidence: 99%

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Volumetric, Acoustic, and Refractive Behavior of Acid Gas Absorbers: N-Vinyl-2-pyrrolidinone and Glycol Ethers (2-(2-Ethoxyethoxy)ethanol, 2-(2-Butoxyethoxy)ethanol, and 2-(2-(2-Methoxyethoxy)ethoxy)ethanol)

Bakshi

Sharma

2023

J. Chem. Eng. Data

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Thermophysical properties such as density (ρ), speed of sound (u), and refractive index (n D) for pure N-vinyl-2-pyrrolidinone (NVP) and binary mixtures of NVP with 2-(2-ethoxyethoxy)ethanol (DEGMEE), 2-(2-butoxyethoxy)ethanol (DEGMBE), and 2-(2-(2-ethoxyethoxy)ethoxy)ethanol (TEGMME) have been measured over the whole range of mole fraction from temperature T = (298.15 to 323.15) K and at 0.1 MPa pressure employing an Anton Paar vibrating U-tube density and sound velocity meter (DSA 5000 M) and an Abbemat refractometer, respectively. To quantify the nonideality in these systems, the experimental data has been used to evaluate various acoustical and thermodynamic parameters, such as excess molar volume (V m E), deviation in the speed of sound (Δu), isentropic compressibility (κs), excess isentropic compressibility (κs E), deviation in refractive index (Δn D), molar refraction (R m), and polarizability (α). Molecular interactions prevailing in these systems have been explained in terms of variation in the measured and calculated values of physicochemical parameters. The collected thermophysical data can be employed in the optimization and design of a desulfurization/CO2-capture process utilizing the studied solutions. Furthermore, this data can also be utilized for the theoretical model extension as well as in solving many difficult engineering problems such as fluid flow, heat and mass transfer, and energy transformations.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%