Apparatus and methods for gas extraction
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United States of America Patent
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Feb 6, 2001
Grant Date -
N/A
app pub date -
Jul 22, 1999
filing date -
Nov 6, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for extracting a gas, in particular hydrogen, from a fluid stream utilizing a plate membrane flattened with a wave spring on the low pressure side of the membrane and a turbulence generator on the high pressure side. Alternately, the membrane is folded and wrapped against a central conduit within the membrane fold. Extraction membranes have a substrate layer of Ta--W, V--Co, V--Pd, V--Au, V--Cu, V--Al, Nb--Ag, Nb--Au, Nb--Pt, Nb--Pd, V--Ni--Co, V--Ni--Pd, V--Nb--Pt or V--Pd--Au alloy or combination thereof and a first layer affixed to the outer surface of the substrate towards a mixed gas flow which is composed of palladium, platinum, rhodium, and palladium alloys.
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