US PATENT SUBCLASS 95 / 96
.~.~ Plural pressure varying steps (e.g., pressure swing adsorption, etc.)

Current as of: June, 1999
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95 /   HD   GAS SEPARATION: PROCESSES

90  DF  SOLID SORPTION {8}
95  DF  .~ Including reduction of pressure {3}
96.~.~ Plural pressure varying steps (e.g., pressure swing adsorption, etc.) {2}
97  DF  .~.~.~> Sweep gas used {1}
103  DF  .~.~.~> Stepped pressure reduction

DEFINITION

Classification: 95/96

Plural pressure varying steps (e.g., pressure swing adsorption, etc.):

(under subclass 95) Process in which there is more than one step of increasing or decreasing the pressure on the solid sorbent.