The Apura gas separation membrane is a durable, spiral-wound, multilayer composite membrane. It is ideally suited to seamlessly replace traditional cellulose acetate (CA) spiral-wound elements for acid gas removal to meet pipeline transmission specifications.
Apura membranes are designed for use in high-pressure, medium- to low-CO2 applications for bulk and fine removal of contaminants such as water, CO2, and H2S.
The smaller ecological footprint—reduced power consumption and zero chemical requirements—provides substantial savings on total cost of ownership and releases fewer emissions compared with amine systems.
Feed gas enters from the side of the spiral-wound Apura membrane, enabling smaller molecules, such as CO2 and H2S, to pass through the multiple layers in a crossflow manner. They then enter the central perforated tube at lower pressure. The high-pressure nonpermeate gasstream, rich in hydrocarbons and depleted of CO2, flows to the next section of membrane modules to repeat this process until the necessary product gas specifications are met.
The low-pressure CO2-rich permeate stream is collected in the central perforated tube and routed to the desired location as a wastestream.
Apura membranes are available in 8-in and 8.25-in diameters.
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