Gas separation process

Details Gas separation process Gas separation process

1992-05-05

1993-10-05

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95139, 95140, 95143, B01D 5304

Patent

active

052500888

ABSTRACT:
A process for obtaining highly-purified gas by selectively separating at least one gaseous impurity from a gaseous mixture by the known pressure swing adsorption method uses a holding column of the feed-in/feed-out sequence retaining type and at least three adsorption columns containing adsorbents. Each adsorption column is pressurized and depressurized in cycle to repeat adsorption and desorption steps. During this, the holding column is used as an intermediate gas reservoir to improve the efficiency of the separation. In this invention, the capacity of the holding column is insufficient to hold the whole amount of purge gas.

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Derwent Abstract of Japanese Patent No. 62-47051.

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