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Membrane Air Separation |
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DETAILED
OVERVIEW:
The apparatus
consists of two Permea air separation modules, connected by
stainless tubing and valves. Each module contains hundreds of
polymeric tubes, the walls of which are more permeable to oxygen
than to nitrogen. Dry air from a standard cylinder passes through a
filter to a pressure regulator, which permits setting the operating
pressure at which the modules operate. Air flow through the tube
side (fiber lumen side) of the membrane modules can be parallel or
series. Effluent air from tube sides of the modules is combined and
passes to a needle valve used to control the total tube side flow
rate. It then flows to a Sierra mass flow meter and an Engineered
Systems electrochemical.
The basic data for each run thus consists of the flow configuration (parallel or series), operating pressure, tube side flow rate and oxygen n level, and shell side flow rate and oxygen level. A typical run takes about one minute, and consumes little air. The data can be processed to produce values for the oxygen and nitrogen permeability coefficients of the module fibers. The apparatus typically operates at room temperature. Please contact us at spencer@columbia.edu for more details on the experiment, and for price and delivery.
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Copyright 2009: Engineering Experiments LLC. Design by Digital Moon Design |
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