Periodic Reporting for period 3 - ENRICO (Enrichment of Components at Interfaces and Mass Transfer in Fluid Separation Technologies)
Reporting period: 2019-10-01 to 2021-03-31
The research that has been carried out in ENRICO so far covers the following work areas: A1 (molecular simulations), A2 (density gradient theory and equations of state), A3 (improved understanding of the fluid interface), B1 (mass transfer theory), B2 (mass transfer experiments), C1 (process modeling and simulation) and is essentially in line with the description of the action. The focus was on work areas A1, A2, A3 and B1.
The project has already yielded methods for the quantitative prediction of the interfacial enrichment. The central element in the new approach is the introduction of a mass transfer resistance of the vapor-liquid interface. This resistance depends on the interfacial enrichment and vanishes if there is no enrichment. The new approach for designing fluid separation processes will lead to more efficient and more robust designs of industrial processes and have a major impact on chemical engineering worldwide.
Three objectives were defined in the description of the action:
Objective A (Molecular Thermodynamics): Establishing methods which enable the reliable prediction of the enrichment of components at interfaces in equilibrium and in non-equilibrium processes, identifying the conditions in which an enrichment of components at the interfaces has to be expected, and structuring that knowledge so that it can be used in fluid separation process design.
This objective has already been reached.
Objective B (The Link): Establishing a model for the mass transfer resistance due to that effect, integrating that model in an overall model for the mass transfer, and validating the mass transfer resistance of the interface caused by the enrichment by laboratory experiments.
Substantial progress has been achieved regarding this goal.
Objective C (Process Engineering): Applying the knowledge created above for studying fluid separation processes and demonstrating the benefits of the new approach for the design.
Work on this objective has begun and yielded promising results.