GS Membrane

HiSep Gas Separation Membrane Module

Gas separation membrane separates specific gas components from gas mixtures. HiSep gas separation membrane is made of an engineering polysulfone based membrane. It can be applied to various gas separation fields.
In the area of energy and environment, HiSep gas separation membrane provides satisfying solutions.

Features of HiSep-GS

HiSep gas separation membrane has hollow fiber configuration. It can be applied to various gas separation as illustrated below.

• Concentration of nitrogen from air
• Recovery of carbon dioxide
• Dehumidification of gas mixtures

HiSep gas separation membrane provides the lowest cost method for separation/generation of gas and we are ready to support total, full technical services.

Principle of gas separation by using membrane

Membrane separation process based on the polymeric permselective membranes ultimately depends on the gas transport properties of polymeric material. For example, when the gas mixture is contacted to the membrane surface, a certain specific gas component permeate through the membrane easier than other components. Thus, as illustrated below, gases such as oxygen, carbon dioxide and water vapor quickly permeate through the membrane, while methane, ethane and nitrogen are very slow to permeate and retarded.

O₂/N₂ Separation

HiSep is a hollow fiber composite membrane made of polysulfone and polydimethylsiloxane. When a gas mixture is introduced to the inner side of hollow fiber at a pressure and the pressure of the other side of the membrane is maintained at a lower pressure, easily permeable gas such as carbon dioxide, water vapor and oxygen permeate through the membrane, while the retarded gas like methane and nitrogen are remained in the inner side of the membrane.

Specification & Performance

• Measured at 6bar Length 685mm x Ø 3"

HiSep-PFN for nitrogen concentration

1. L/min
2. measured at 6bar, 20°C and basis of PFN-360 (685mm x 3") Grade.

GS membrane module, PFN is developed for the purpose of separation and concentration of N₂ from air. It's more compact and easier than cryogenic or PSA process.
The performance of PFN is showed in the table below.

HiSep-PFO for oxygen enrichment

1. L/min
2. measured at 6bar, 20°C and basis of PFN-360 (685mm x 3") Grade.

PFO separates air and enrich O₂ up to 50%.
The performance of PFO is showed in the table below.

HiSep-PFDH for air dryer

The pictures show base peaks of FT-IR (Nicolet, Magna 860) obtained under the various of conditions. In the case of using membrane air dryer of PFDH Grade, Water vapor peaks were decreased perfectly.

HiSep-PFCD for Carbon Dioxide

PFCD can be applied to recover and separate carbon dioxide from gas mixture.
The table shows the result of permeation experiment for carbon dioxide and nitrogen at 303K, 10bar. Also, the figure shows decrease of carbon dioxide conc. from air stream passing through PFCD-160 Grade at 6bar, 22°C.

Application