Reactive aqueous two-phase systems for the production and purification of PEGylated proteins

Campos-García, Víctor R.; Benavides, Jorge; González‐Valdez, José

doi:10.1016/j.ejbt.2021.09.003

Cited by 8 publications

(1 citation statement)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reactive processes may offer several advantages over their non-reactive counterparts, such as an increase in reaction yield and selectivity, the overcoming of thermodynamic restrictions (e.g., azeotropes), energy saving or capital cost reduction [ 17 , 18 , 19 ]. Further, reactions in multiple phases systems are encountered in living systems such as coacervates [ 20 , 21 ], in downstream processes for biomolecules’ purification [ 22 , 23 ] or in geological fluid systems [ 24 ]. In process engineering, several methods have been developed so far to generate feasible flowsheets for a given separation/reaction task or to dimension and optimize the required unit operations [ 17 ], with all the proposed methods relying on the availability of experimental data.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Predictions of Chemical and Phase Equilibria in Systems with an Esterification Reaction Using PC-SAFT

2023

View full text Add to dashboard Cite

The study of chemical reactions in multiple liquid phase systems is becoming more and more relevant in industry and academia. The ability to predict combined chemical and phase equilibria is interesting from a scientific point of view but is also crucial to design innovative separation processes. In this work, an algorithm to perform the combined chemical and liquid–liquid phase equilibrium calculation was implemented in the PC-SAFT framework in order to predict the thermodynamic equilibrium behavior of two multicomponent esterification systems. Esterification reactions involve hydrophobic reacting agents and water, which might cause liquid–liquid phase separation along the reaction coordinate, especially if long-chain alcoholic reactants are used. As test systems, the two quaternary esterification systems starting from the reactants acetic acid + 1-pentanol and from the reactants acetic acid + 1-hexanol were chosen. It is known that both quaternary systems exhibit composition regions of overlapped chemical and liquid–liquid equilibrium. To the best of our knowledge, this is the first time that PC-SAFT was used to calculate simultaneous chemical and liquid–liquid equilibria. All the binary subsystems were studied prior to evaluating the predictive capability of PC-SAFT toward the simultaneous chemical equilibria and phase equilibria. Overall, PC-SAFT proved its excellent capabilities toward predicting chemical equilibrium composition in the homogeneous composition range of the investigated systems as well as liquid–liquid phase behavior. This study highlights the potential of a physical sound model to perform thermodynamic-based modeling of chemical reacting systems undergoing liquid–liquid phase separation.

show abstract