US PATENT SUBCLASS 95 / 100
.~.~.~.~.~ Stepped pressure reduction

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  DF  .~.~ Plural pressure varying steps (e.g., pressure swing adsorption, etc.) {2}
97  DF  .~.~.~ Sweep gas used {1}
98  DF  .~.~.~.~ Feed gas or constituent thereof is sweep gas {3}
100.~.~.~.~.~ Stepped pressure reduction {1}
101  DF  .~.~.~.~.~.~> Vacuum applied

DEFINITION

Classification: 95/100

Stepped pressure reduction:

(under subclass 98) Process in which the pressure over the solid sorbent is decreased in more than one step.

SEE OR SEARCH THIS CLASS, SUBCLASS:

103, for processes in which there is use of pressure reduction in more than one step without the use of a sweep gas to carry desorbed gas.