Membrane-based compressed air breathing system

Details Membrane-based compressed air breathing system Membrane-based compressed air breathing system

2011-07-05

2011-07-05

Greene, Jason M (Department: 1775)

Gas separation: processes

Selective diffusion of gases

Selective diffusion of gases through substantially solid...

C095S052000, C095S143000, C095S273000, C096S004000, C096S008000, C096S010000, C096S111000, C096S417000, C055S315000, C422S004000, C422S119000, C422S122000, C423S247000, C128S205120, C128S205290

Reexamination Certificate

active

07972415

ABSTRACT:
A breathing air purification device and method having a carbon-monoxide free sweep stream. Water vapor is removed from a compressed air stream using a membrane dryer, comprising, a membrane having a permeate portion and a non-permeate portion, a membrane housing which encases the membrane, a membrane feed inlet conduit connected to the membrane and a non-permeate gas outlet conduit fluidly connected to the non-permeate portion of the membrane. The sweep stream used to cleanse the outer permeate portion of the membrane dryer is taken from a catalyst filter. The catalyst filter includes a cartridge containing a bed of catalyst, two end pieces maintaining the cartridge within a catalyst bed housing and having outlet holes, a catalyst inlet conduit connected to the bed of catalyst and a product gas outlet conduit connected to the outlet holes. A sweep inlet tube provides a gas connection from the catalyst filter component to the permeate portion of the membrane.

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