Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1988-12-27
1990-01-16
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55 68, B01D 5322
Patent
active
048940682
ABSTRACT:
Nitrogen gas of high purity is produced from compressed air by contacting the air with a first gas membrane separator permitting oxygen to permeate therethrough selectively while restraining the passage of nitrogen. The nonpermeant gas is then brought into contact with a second gas membrane separator of similar construction. The use of the serially arranged separators provides nitrogen gas with very low levels of oxygen.
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Michaels Martha A.
Permea Inc.
Spitzer Robert
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