Two-Phase Module Adaptation for Simulating Separation Processes in Multicomponent Mixtures

Atomic Energy ◽  
2022 ◽  
Author(s):  
V. V. Chudanov ◽  
A. E. Aksenova ◽  
A. A. Leonov ◽  
A. A. Makarevich
Keyword(s):  
Multicomponent Mixtures ◽  
Two Phase ◽  
Separation Processes

Two-phase filtration of multicomponent mixtures with a retrograde region of the phase diagram

2017 ◽  
Vol 62 (2) ◽  
pp. 60-62 ◽  
Author(s):  
V. M. Batenin ◽  
V. M. Zaichenko ◽  
D. A. Molchanov ◽  
V. M. Torchinskiy
Keyword(s):  
Phase Diagram ◽  
Multicomponent Mixtures ◽  
Two Phase

scholarly journals DISTILLATION OF BINARY TWO-PHASE MIXTURES WITH VARIOUS PHYSICO-CHEMICAL PROPERTIES: NORMAL MODE AND DEVIATIONS FROM IT

2016 ◽  
Vol 11 (4) ◽  
pp. 15-25
Author(s):  
L. A. Serafimov ◽  
K. A. Morozov
Keyword(s):  
Energy Consumption ◽  
Binary Mixtures ◽  
Normal Mode ◽  
Chemical Properties ◽  
Flow Sheet ◽  
Multicomponent Mixtures ◽  
Two Phase ◽  
Independent Variables ◽  
Physico Chemical ◽  
Key Indicators

In this article, the normal continuous mode of distillation is considered using an example of binary two-phase mixture distillation. In practice, there are often deviations from the normal mode. It has been proved that the deviation leads to an increase in energy consumption for the ongoing process. In the industry, columns separating binary mixtures are normally the finishing apparatuses in the flow-sheet separation of multicomponent mixtures, which are obtained in the reactor as a result of main reactions as well as by-reactions. The distillation of binary mixtures is relatively simpler than that of multicomponent mixtures. In this regard, the fundamental parts of monographs especially in the thirties-forties of the last century started with the study of binary mixtures, although multicomponent mixtures were the main focus. The aim of analyzing this complex and the highly energy-intensive process is to facilitate the choice of a mathematical model for the process and the determination on its basis variance. Variance is a set of independent variables that allow calculation of a process only after taking into account the number of independent equations related to these variables. A case of deviation from the normal distillation regime where an under-heated liquid enters the column feed has been revised. This leads to an increase in energy consumption during distillation. Key indicators of the normal regime relative to the level of feed and the temperature of the liquid are shown in the text.

Lipase purification using ionic liquids as adjuvants in aqueous two-phase systems

2015 ◽  
Vol 17 (5) ◽  
pp. 3026-3034 ◽  
Author(s):  
Ranyere L. Souza ◽  
Sónia P. M. Ventura ◽  
Cleide M. F. Soares ◽  
João A. P. Coutinho ◽  
Álvaro S. Lima
Keyword(s):  
Ionic Liquids ◽  
Environmentally Friendly ◽  
Two Phase ◽  
Separation Processes ◽  
High Purification ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
Lipase Purification

Ionic liquids as adjuvant in aqueous two-phase systems (ATPS) are efficient, environmentally friendly, and “biocompatible” separation processes, which allow the high purification of enzymes.

Aqueous two‐phase systems based on deep eutectic solvents and their application in green separation processes

2019 ◽  
Vol 43 (1) ◽  
pp. 348-359 ◽  
Author(s):  
Rong‐tao Zhao ◽  
Dong Pei ◽  
Pei‐liang Yu ◽  
Jan‐teng Wei ◽  
Ning‐li Wang ◽  
...  
Keyword(s):  
Deep Eutectic Solvents ◽  
Two Phase ◽  
Separation Processes ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
Green Separation

Modeling of Two-Phase Flashing Flow of Multicomponent Mixtures in Large Diameter Pipes

2008 ◽  
Vol 31 (11) ◽  
pp. 1676-1684
Author(s):  
Y. Qin ◽  
X. Han ◽  
H.-X. Wang ◽  
Z.-L. Fang ◽  
X.-T. Cui ◽  
...  
Keyword(s):  
Large Diameter ◽  
Multicomponent Mixtures ◽  
Two Phase ◽  
Large Diameter Pipes

Ionic liquid-based aqueous two-phase systems and their applications in green separation processes

2010 ◽  
Vol 29 (11) ◽  
pp. 1336-1346 ◽  
Author(s):  
Zhiyong Li ◽  
Yuanchao Pei ◽  
Huiyong Wang ◽  
Jing Fan ◽  
Jianji Wang
Keyword(s):  
Ionic Liquid ◽  
Two Phase ◽  
Separation Processes ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
Green Separation

scholarly journals Experimental and Numerical Investigation of Phase Separation due to Multi-Component Mixing at High-Pressure Conditions

2017 ◽  
Author(s):  
Christoph Traxinger ◽  
Hagen Müller ◽  
Michael Pfitzner ◽  
Steffen Baab ◽  
Grazia Lamanna ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Separation ◽  
Numerical Simulations ◽  
A Priori ◽  
Two Phase ◽  
Separation Processes ◽  
Pure Nitrogen ◽  
Elastic Light Scattering ◽  
Large Eddy ◽  
High Pressure Injection

Experiments and numerical simulations were carried out in order to contribute to a better understanding and predic-tion of high-pressure injection into a gaseous environment. Specifically, the focus was put on the phase separation processes of an initially supercritical fluid due to the interaction with its surrounding. N-hexane was injected into a chamber filled with pure nitrogen at 5 MPa and 293 K and three different test cases were selected such that they cover regimes in which the thermodynamic non-idealities, in particular the effects that stem from the potential phase separation, are significant. Simultaneous shadowgraphy and elastic light scattering experiments were conducted to capture both the flow structure as well as the phase separation. In addition, large-eddy simulations with a vapor- liquid equilibrium model were performed. Both experimental and numerical results show phase formation for the cases, where the a-priori calculation predicts two-phase flow. Moreover, qualitative characteristics of the formation process agree well between experiments and numerical simulations and the transition behaviour from a dense-gasto a spray-like jet was captured by both.DOI: http://dx.doi.org/10.4995/ILASS2017.2017.4756

Partitioning Behavior of Lysozyme and α-lactalbumin in Aqueous Two-Phase System Formed by Ionic Liquids and Potassium Phosphate

2017 ◽  
Vol 13 (10) ◽  
Author(s):  
Vanessa S. Sampaio ◽  
Renata C. F. Bonomo ◽  
Cristiane M. Veloso ◽  
Rita C. S. Sousa ◽  
Evaldo C. S. Júnior ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Partition Coefficients ◽  
Potassium Phosphate ◽  
Inorganic Salts ◽  
Phase System ◽  
Two Phase ◽  
Separation Processes ◽  
Different Temperatures ◽  
Aqueous Two Phase Systems ◽  
Increasing Temperature

AbstractNowadays ionic liquids (ILs), because of their “green” characteristics, have been used for analytical and separation processes. Therefore the partitioning of lysozyme and α-lactalbumin using aqueous two-phase systems (ATPSs) composed of an ionic liquid (chloride 1-ethyl-3-methylimidazolium) and inorganic salts (K2HPO4, KH2PO4) was studied. Phase equilibrium diagrams were obtained to explore the effect of the different temperatures (293.15, 303.15, 313.15, and 323.15) K and pH (7.5, 8.0, and 8.5) used for the partitioning studies. For both proteins, partition coefficients decreased with increasing temperature. The pH influenced the partition coefficients of lysozyme and α-lactalbumin. The thermodynamic parameters (ΔH◦, ΔS◦, ΔG◦) indicate thermodynamic differences between the partitioning of lysozyme and α-lactalbumin in this system. The ΔH◦, ΔS◦, and ΔG◦values of the process studied showed that this process is spontaneous. This work demonstrates the possible use of ATPSs with ILs and inorganic salts as a methodology for the partitioning of lysozyme and α-lactalbumin.

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