Existing systematic approaches to quantify mixing enhancement only consider hydrodynamics but not the direct effect on mass transfer improvement, due to the difficulties caused by the non-spatially invariant nature of the mass transfer phenomenon.
The reasons for this are an increase in the availability of design information, the evolution of higher-capacity and higher efficiency mass transfer packings, and improvements in distributors and support plates.
Attention is also given to providing an understanding of the mechanisms responsible for the improvements in mass transfer with the use of nanoparticles.
The materials could be recovered after the reaction by an external magnetic field, and agitation of the solution via a magnetic field led to improvements of mass transfer of the substrates to the catalyst surface for hydrogenation reactions.
For further improvement of mass transfer in slug flow, we also verified that the channel including a sudden expansion improves the mass transfer efficiency.
Conventional double catalyst layer (DCL) structures show no obvious improvement in cathode performance, due to the contradiction between improving mass transfer and maintaining good platinum (Pt) utilization.
In rotating packed bed reactors, two key parameters are very important, one high centrifugal field and other porous media, which intensify mass transfer operation leads to photodegradation improvement.
The reactor design for air- or water-purification can be classified into two main strategies: (1) enlargement of reactive surface area and (2) improvement of mass transfer.
Considerable improvement in mass transfer is obtainable by employing such a double-pass device with external refluxes, instead of using an open conduit with single-pass operations.
