Adsorptive separation of nitrogen from other gases

Details Adsorptive separation of nitrogen from other gases Adsorptive separation of nitrogen from other gases

1995-08-11

1997-04-01

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95 96, 95130, 95902, 502 65, 502 66, 502 71, 502 73, 502 74, B01D 53047

Patent

active

056161700

ABSTRACT:
Chabazite, offretite, erionite, levyne, mordenite, gmelinite, zeolite A, zeolite T, EMC-2, ZSM-3, ZSM-18, ZK-5, zeolite L, and beta zeolite whose exchangeable cations are composed of 95 to 50% lithium ions, 4 to 50% of one or more of aluminum, cerium, lanthanum and mixed lanthanides and 0 to 15% of other ions are prepared by ion-exchanging the base zeolite with water-soluble trivalent ion salts and with water soluble lithium salts. The zeolites preferentially adsorb nitrogen from gas mixtures.

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