Sandwich Packings: State of the Art
Steve Flechsig
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.
Search for more papers by this authorÖmer Yildirim
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.
Search for more papers by this authorCorresponding Author
Eugeny Y. Kenig
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.
Gubkin Russian State University of Oil and Gas, Leninsky Prospect, 65/1, 119991 Moskau, Russia.
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.Search for more papers by this authorSteve Flechsig
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.
Search for more papers by this authorÖmer Yildirim
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.
Search for more papers by this authorCorresponding Author
Eugeny Y. Kenig
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.
Gubkin Russian State University of Oil and Gas, Leninsky Prospect, 65/1, 119991 Moskau, Russia.
University of Paderborn, Faculty of Mechanical Engineering, Chair of Fluid Process Engineering, Pohlweg 55, 33098 Paderborn, Germany.Search for more papers by this authorAbstract
Capacity and efficiency of packed columns can be significantly improved by the application of sandwich packings. An element of such packings consists of two alternating layers of industrially available standard packings with different specific surface areas. Sandwich packings are commonly used for operating conditions between the flooding points of both layers, with a heterogeneous flow pattern established along a sandwich packing element. There are some similarities between this flow pattern and those in conventional structured packings as well as in trays. Under certain conditions, this can be used in a beneficial way. However, the application of this integrated packing type is hindered by a lack of reliable design methods. In the present article, the results of recent activities are summarized.
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