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Pervaporation / Vapor permeation module

PRODUCT

SepraTek™ hollow fiber pervaporation / vapor permeation membranes are installed in standard hollow fiber modules housed in pressure vessels which contain organic solvent mixtures. They are designed for high temperature processing of volatile organics such as alcohols and other solvents used.

Especially, SepraTek possesses diverse membrane module fabrication techniques including potting resin formulation, potting art and module design. Membrane modules which are very stable even in aggressive organic solvent at high temperature can be fabricated by an established methodology.

A membrane system is designed and engineered through systematical simulation and a sequence of groundworks so as to maximize membrane performance as well as the economical value of the membrane process

세프라텍 투과증발/증기투과모듈

Membrane module and assembly
In the process, feed flows at the inside of respective hollow fiber membrane which is surrounded by the braid. In this case, the porous support layer and the braid of the hollow fiber membrane can act as an insulator, and, moreover, vacuum applied at the outside of hollow fiber retards heat transfer from the feed to its surrounding.
As a result, the heat loss of the feed into the surrounding is very low and then the case of membrane module is not heated to a great extent by feed of an elevated temperature. From this point of view, heat resistance is not a factor to be considered in selecting the material of module case, and more options can be given widely for choosing the materials of module case, from chemical resistant plastics to metals. The potting part of membrane module fabricated SepraTek’s potting methodology is very stable in organic solvents even at 110℃.

분리막 모듈 및 어셈블리 분리막 모듈 및 어셈블리

In order to apply vacuum effectively to the permeate side of respective membrane module and to simplify piping in configuration of membrane modules, a number of unit modules are packed into a body "module assembly" in fabricating a large scale of pervaporation system.

The number of unit modules in a membrane assembly can be determined, depending on the hydraulic characteristics of feed liquid, the scale of pervaporation system, separation extent to be achieved, and so on.

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