PROCESS OF EXTRACTION OF CAROTENOIDS FROM CO2 UNDER LIQUID-VAPOR EQUILIBRIUM CONDITIONS

Dafina Karaj;  ; Elmira Mehmeti;

doi:10.31407/ijees11.118

PROCESS OF EXTRACTION OF CAROTENOIDS FROM CO2 UNDER LIQUID-VAPOR EQUILIBRIUM CONDITIONS

International Journal of Ecosystems and Ecology Science (IJEES) ◽

10.31407/ijees11.118 ◽

2021 ◽

Vol 11 (1) ◽

pp. 129-136

Author(s):

Dafina Karaj ◽

◽

Elmira Mehmeti ◽

Keyword(s):

Equilibrium Conditions ◽

Vapor Equilibrium ◽

Liquid Vapor

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Extraction of perfumes and flavours from plant materials with liquid carbon dioxide under liquid—vapor equilibrium conditions

Fluid Phase Equilibria ◽

10.1016/0378-3812(89)80009-3 ◽

1989 ◽

Vol 49 ◽

pp. 115-126 ◽

Cited By ~ 92

Author(s):

S.N. Naik ◽

H. Lentz ◽

R.C. Maheshwari

Keyword(s):

Carbon Dioxide ◽

Liquid Carbon ◽

Equilibrium Conditions ◽

Plant Materials ◽

Liquid Carbon Dioxide ◽

Vapor Equilibrium ◽

Liquid Vapor

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Liquid-vapor equilibrium in the system helium-methane

AIChE Journal ◽

10.1002/aic.690130335 ◽

1967 ◽

Vol 13 (3) ◽

pp. 593-599 ◽

Cited By ~ 21

Author(s):

C. K. Heck ◽

M. J. Hiza

Keyword(s):

Vapor Equilibrium ◽

Liquid Vapor

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EQUATIONS OF STATE FOR FLUIDS: THE LIQUID-VAPOR EQUILIBRIUM (LVE)

International Journal of Modern Physics B ◽

10.1142/s021797920804942x ◽

2008 ◽

Vol 22 (30) ◽

pp. 5335-5347 ◽

Cited By ~ 3

Author(s):

JIANXIANG TIAN ◽

YUANXING GUI

Keyword(s):

Experimental Data ◽

Equations Of State ◽

Packing Fraction ◽

Optimal Choice ◽

Critical Conditions ◽

Mechanics Model ◽

Vapor Equilibrium ◽

Pure Substances ◽

Compressibility Factors ◽

Liquid Vapor

Historically, the development of equations of state for fluids has almost invariably followed the lead of the van der Waals (vdW) equation which includes an attraction term and a repulsion term. In this paper, using a simple statistical mechanics model, we introduce a parameter σ as both the power and a coefficient of the packing fraction y which locates at the numerator of the vdW attraction term. Then nine equations of state are constructed to solve the critical conditions and the main thermodynamic properties of pure substances at liquid-vapor equilibrium. As a result, the correct critical compressibility factors of Nitrogen, Argon, Carbon dioxide, Ethene, Methane, Oxygen, Propene, Water and Hydrogen, are obtained with an optimal choice of parameter σ. Good predictions of these equations to the liquid-vapor equilibrium properties below critical temperature are reported and compared with experimental data.

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