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Sandwich Packings: State of the Art
Author(s) -
Flechsig Steve,
Yildirim Ömer,
Kenig Eugeny Y.
Publication year - 2016
Publication title -
chembioeng reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.089
H-Index - 22
ISSN - 2196-9744
DOI - 10.1002/cben.201600004
Subject(s) - structured packing , materials science , flow (mathematics) , geometry , mathematics , mechanics , physics , mass transfer
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.